CDC National Center for Health Statistics · CDC NCHS Health Data · 2026

Maternal mortality rate for Black women in 2024 was 44.8 deaths per 100,000 live births compared to 14.2 for White women — more than three times higher. Black women's rate was the only one that did not show a statistically significant decline.

Szepietowska M, Krajewski PK, Pacan P et al. · Journal of Clinical Medicine · 2026

Cross-sectional study of 84 HS patients found significant associations between depression, anxiety, pain intensity, itch severity, and quality of life impairment. HS reduces QoL through physical and psychological pathways simultaneously.

Derby CA et al SWAN investigators · SLEEP Oxford Academic · 2025

Irregular sleep timing independently predicted worse cognitive performance in perimenopausal women regardless of total sleep hours. A consistent sleep schedule was more protective than sleep duration alone.

Fasero M, Coronado PJ · Journal of Clinical Medicine · 2025

Oestrogen deficiency during menopause leads to endothelial dysfunction, increased arterial stiffness, and lipid profile deterioration including rises in total cholesterol, LDL, and triglycerides and a fall in HDL. Cardiovascular disease is the leading cause of death in women and risk begins rising during perimenopause. The Women's Ischemia Syndrome Evaluation study found young women with oestrogen deficiency face a sevenfold higher risk of coronary artery disease.

US Department of Health and Human Services Office of Minority Health · HHS Minority Health · 2025

In 2023 the infant mortality rate for Black infants was 10.9 per 1,000 live births compared to 5.6 for the total population — nearly twice as high. Low birthweight mortality rate was 2.47 times higher for Black infants.

Bielach-Bazyluk A, Jakubowicz-Zalewska O, Mysliwiec H, Flisiak I · Antioxidants · 2025

Systematic review covering omega-3 fatty acids and specialized pro-resolving mediators in inflammatory skin diseases including hidradenitis suppurativa. Preclinical data consistently demonstrates that omega-3-derived mediators modulate key inflammatory pathways relevant to HS. Human studies show altered lipid mediator profiles in HS patients characterised by reduced omega-3-derived anti-inflammatory compounds. Evidence supports omega-3 supplementation as a low-risk adjunct to HS management.

Mollaahmadi F et al. · BMC Women's Health · 2025

Systematic review of 16 RCTs involving 910 women found CBT significantly improves vasomotor symptoms, anxiety, depression, and sleep quality. Group CBT yielded most benefit.

multiple authors · BMC Public Health · 2025

Meta-analysis of 21 RCTs involving 2020 participants showed physical activity significantly reduced depressive symptoms (SMD -0.66) and anxiety (SMD -0.55). Aerobic exercise showed superior efficacy for depression (SUCRA 78.7%).

Holgersen N et al. · JAMA Dermatology · 2025

Population-based cohort of 10,206 Danish HS patients (1997-2022) found HS patients had significantly elevated risk of new-onset depression and anxiety. Disease severity was not an independent risk factor — even mild HS carries elevated mental health risk.

multiple authors · Frontiers in Psychology · 2025

Antidepressant effect of exercise peaks at approximately 750 MET-minutes per week in postmenopausal women. Resistance exercise showed superior efficacy over aerobic alone. Effect declines above 1,130 MET-minutes — overtraining worsens mood through cortisol dysregulation.

Troia L, Garassino M, Volpicelli AI et al. · Journal of Clinical Medicine · 2025

Perimenopause impacts 80 to 90 percent of women and sleep disturbances are among the most prevalent symptoms. Sleep disorders during perimenopause include insomnia, sleep-related breathing disorders, and movement disorders. Pathogenetic mechanisms include vasomotor symptoms disrupting sleep architecture, HPA axis dysregulation from cortisol changes, and circadian rhythm disruption from declining oestrogen. CBT-I and sleep hygiene are first-line non-pharmacological interventions.

Multiple authors · BMC Psychiatry · 2025

Systematic review of 11 RCTs with 973 menopausal women found CBT-I significantly improved sleep quality SMD negative 1.01 and reduced insomnia severity by mean difference negative 4.49 points. Interventions ranged from 4 to 12 sessions delivered face-to-face, telephone, and online. Follow-up periods extending to 52 weeks confirmed durability of improvements.

Mughal ZUN, Mussarat A, Oduoye MO · Annals of Medicine and Surgery · 2024

The FDA approved fezolinetant, sold as Veozah, on May 12 2023 as the first non-hormonal neurokinin-3 receptor antagonist for treating moderate to severe vasomotor symptoms associated with menopause. Clinical trials SKYLIGHT 1, SKYLIGHT 2, and SKYLIGHT 4 demonstrated nearly 60 percent reductions in hot flash frequency and severity. This is the first FDA-approved non-hormonal mechanism-based treatment for hot flashes and represents a significant option for women who cannot or choose not to use hormone therapy.

Wollina U et al. · Nutrients · 2024

Cohort study of 80 participants equally divided between HS patients and healthy controls. HS patients showed significantly higher sugar and milk consumption. The study identified correlations between dietary habits and gut bacterial composition in HS. This adds a gut-skin axis dimension to HS dietary guidance, suggesting that gut dysbiosis may contribute to HS inflammation alongside the established androgen and insulin pathways.

Systematic review team, published 2024, PRISMA methodology · Published in peer-reviewed journal, PMC12296567 · 2024

Meta-analysis of 12 eligible studies with 533 participants found soy isoflavones were statistically effective for treating menopausal symptoms with a small to moderate effect size. However, this finding exists alongside the 2007 Cochrane review finding no conclusive evidence across 30 RCTs. The evidence on phytoestrogens remains genuinely contested because only 30 to 50 percent of women produce equol, the active metabolite of soy isoflavones, meaning individual response is highly variable. Both studies belong together in the app to show users the honest conflicted picture.

Gu Y, Han F, Xue M, Wang M, Huang Y · BMC Women's Health · 2024

Systematic review of 33 RCTs involving 44,639 postmenopausal women with a mean age of 60.3 years. Found no significant difference between hormone therapy and placebo in all-cause death or cardiovascular events overall. However, the timing of initiation matters significantly — women who begin hormone therapy closer to menopause onset show more favourable cardiovascular outcomes than those who start later. This is the evidence base for the timing hypothesis used in clinical practice.

Schildroth S, Geller RJ, Wesselink AK et al · Chemosphere · 2024

Hair product use was associated with higher biomarker concentrations of multiple phthalates, phenols, and parabens in Black women, confirming hair products as a major exposure source for hormonally active chemicals.

Kochersberger A, Coakley A, Millheiser L, Morris JR, Manneh C, Jackson A, Garrison JL, Hariton E · Menopause · 2024

Largest published dataset by race/ethnicity (68,864 women over 4 years). Black women significantly more likely to report hot flashes; Latina and mixed-race more likely to report hair/skin changes; Indigenous more likely to report pain with intercourse. Differences persist after controlling for SES.

Hoyert DL · CDC/NCHS Health E-Stats · 2024

US maternal mortality rate 22.3/100k in 2022; Black women 49.5/100k, White women 19.0/100k — a 2.6-fold racial disparity that has persisted for decades.

CDC National Center for Health Statistics · CDC/NCHS · 2024

Maternal mortality varied four-fold across US states; California 10.5, Alabama 38.6, Arizona 30.0 per 100,000 live births (2018–2022 aggregate).

March of Dimes · March of Dimes PeriStats State Report · 2024

46.5% of Texas counties are maternity care deserts vs 32.6% nationally; Texas women face very high vulnerability to adverse birth outcomes.

Hollenbach SJ, Brueggmann D, Obi T, Stanhope KK · JAMA Network Open · 2024

PPD rates rose across all racial/ethnic groups 2015–2021; steepest increases in Black and Asian/Pacific Islander women; N > 2.9 million births.

Gorina Y, Elgaddal N, Weeks JD · CDC/NCHS Data Brief No. 494 · 2024

Non-Hispanic Black women had the highest hysterectomy prevalence of any racial/ethnic group in the 2021 National Health Interview Survey; non-Hispanic Asian women the lowest.

multiple authors · Life MDPI · 2024

CBT-I significantly improves sleep quality and reduces insomnia severity in menopausal women. More effective than sleep restriction therapy and sleep hygiene alone. Improvements persisted up to six months post-treatment.

Faubion SS, Kling JM, Bhattacharya R et al · Mayo Clinic Proceedings · 2023

Survey of 4440 employed women aged 45 to 60. Menopause symptoms significantly associated with absenteeism, reduced productivity, and work limitations. Women with moderate to severe symptoms were significantly more likely to reduce hours or consider leaving employment.

Karagaiah P, Daveluy S, Ortega Loayza A et al · Journal of Drugs in Dermatology · 2023

Androgens drive HS pathogenesis. Antiandrogen therapy including spironolactone shows significant improvement. Combined oral contraceptives with high oestrogen to progesterone ratio reduce abscess and nodule counts in a 12 week study.

Liu J, Jin X, Liu W, Chen W, Wang L, Feng Z, Huang J · Frontiers in Cardiovascular Medicine · 2023

Women with premature or early menopause before age 45 have significantly elevated long-term risk of type 2 diabetes, hypertension, hyperlipidaemia, and cardiovascular events compared to women with menopause at age 45 or older. This meta-analysis quantifies the additional cardiometabolic burden of early hormonal transition and supports earlier preventive intervention.

Wang Z, Zan X, Li Y, Lu Y, Xia Y, Pan X · Frontiers in Physiology · 2023

Systematic review and network meta-analysis of 19 RCTs including 919 subjects found that resistance training significantly improves bone mineral density in postmenopausal women. Multicomponent training combining resistance, balance, and aerobic elements demonstrated the greatest efficacy for femoral neck bone mineral density. Single-modality exercise alone is less effective than combined approaches.

Reeves AN, Gottlieb BR, Mishra GD, Harlow SD · International Journal of Epidemiology · 2023

After correcting for selection biases, Black women had earlier natural and surgical menopause by an average of 1.2 years versus White women. Uncorrected studies underestimate racial disparities in menopause timing.

Katon JG, Plowden TC, Marsh EE · Fertility and Sterility · 2023

Systematic review of studies from 1995 to 2022. Black women consistently had higher fibroid prevalence than White women. Black women experienced significantly worse surgical outcomes for fibroids compared to White women. Disparities linked to differential access to healthcare and bias within the healthcare system. Free PMC article.

Teede HJ, Tay CT, Laven JJE et al · Fertility and Sterility · 2023

International evidence-based guideline on PCOS from the International PCOS Network involving 39 organisations and 6,000 women with lived experience. Updated recommendations on PCOS diagnosis, screening for metabolic and psychological comorbidities, lifestyle management as first-line treatment, and pharmacological options. Recognises significant ethnic variation in PCOS presentation and emphasises psychological wellbeing as a core management component.

Cooney LG, Dokras A · Seminars in Reproductive Medicine · 2023

Black and Hispanic women with PCOS carry greater metabolic burden and face systematic underdiagnosis compared to White women.

Liu H, Cai K, Wang J, Zhang H · Frontiers in Public Health · 2023

Meta-analysis of multiple RCTs found mindfulness-based interventions significantly reduced anxiety (SMD -1.03), depressive symptoms (SMD -0.91), and perceived stress (SMD -0.85) in menopausal women. High adherence rate of 79% and low attrition confirmed feasibility. Mindfulness activates the parasympathetic nervous system, lowers cortisol, and dampens amygdala reactivity.

Matusiak L, Bieniek A, Szepietowski JC · Postepy Dermatologii i Alergologii · 2023

Cross-sectional study of 114 HS patients found 41.2% showed depression symptoms and 40.4% had anxiety. Most HS patients with psychological comorbidities were not receiving any psychological support.

Klusmann H, Luecking N, Engel S et al. · Neuroscience and Biobehavioral Reviews · 2023

Systematic review of 12 longitudinal studies found significantly higher cortisol reactivity to stress in the luteal phase than follicular phase. Basal cortisol higher in the premenstrual period. Gonadal steroids are potent modulators of HPA axis functioning — stress hits harder in late luteal, the same window when HS and perimenopause symptoms peak.

Yeroushalmi S, Ildardashty A, Elhage KG et al. · Archives of Dermatological Research · 2023

Systematic review confirmed patients with HS report significantly poorer sleep quality than controls. Pain was the primary driver of poor sleep in HS with both sleep onset insomnia and sleep maintenance insomnia common. 55.2 percent of HS patients reported sleeping less than 6 hours per night at least three times per week. Sleep disruption in HS creates a cycle — poor sleep increases inflammatory cytokines which worsen HS which further disrupts sleep.

Peters BA, Lin J, Qi Q, Usyk M, Isasi CR, Mossavar-Rahmani Y, Derby CA, Santoro N, Perreira KM, Daviglus ML, Kominiarek MA, Cai J, Knight R, Burk RD, Kaplan RC · mSystems · 2022

Large study of Hispanic and Latino women found that the postmenopausal gut microbiome becomes more similar to the male gut microbiome. Menopause depletes specific gut bacteria and decreases the hormone-related metabolic potential of the gut microbiome. These changes were associated with adverse cardiometabolic risk. The gut microbiome plays a direct role in how women process and recirculate oestrogen during and after the menopausal transition.

Peters BA, Santoro N, Kaplan RC, Qi Q · International Journal of Women's Health · 2022

The estrobolome — the collection of bacterial genes capable of deconjugating oestrogens in the gut — modulates how much oestrogen circulates in the bloodstream versus being excreted. During menopause, declining oestrogen changes gut microbial composition which may in turn worsen menopause-related symptoms including weight gain, bone loss, and cardiovascular risk. Prebiotics and probiotics including Lactobacillus strains have been shown to improve metabolic and overall health in menopausal women.

Harlow SD, Burnett-Bowie SM, Greendale GA, Avis NE, Reeves AN, Richards TR, Lewis TT · Women's Midlife Health · 2022

25-year SWAN cohort review found Black women experience more severe vasomotor symptoms, longer perimenopause transition, greater sleep disruption, worse cardiometabolic outcomes, and earlier menopause onset than White women. Structural racism identified as major contributing factor.

Schneyer RJ, Greene NH, Wright KN, Truong MD, Molina AL, Tran K, Siedhoff MT · Journal of Minimally Invasive Gynecology · 2022

Retrospective cohort study of 1,311 women at Cedars-Sinai. 81 percent of White women received minimally invasive surgery versus only 57 percent of Black women and 65 percent of Hispanic women for uterine fibroid treatment. Disparities persisted after controlling for insurance type and fibroid size. Black and Hispanic women were also less likely to have surgery performed by a subspecialty-trained minimally invasive gynecologic surgeon.

Chang CJ, O'Brien KM, Keil AP, Gaston SA, Jackson CL, Sandler DP, White AJ · Journal of the National Cancer Institute · 2022

NIH Sister Study of 33,497 women found frequent users of chemical hair straighteners had more than double the risk of uterine cancer; 60 percent of frequent users were Black women, identifying chemical straighteners as a contributor to uterine cancer disparities.

The Menopause Society formerly NAMS Advisory Panel · Menopause - The Journal of The Menopause Society · 2022

Comprehensive evidence synthesis and clinical position statement on menopausal hormone therapy endorsed by more than 20 medical organisations. Concludes that for healthy women under 60 or within 10 years of menopause onset, the benefits of hormone therapy for vasomotor symptoms outweigh the risks in most cases. The timing hypothesis - that earlier initiation produces more favourable outcomes - is supported by Level 1 evidence. Represents the current gold standard clinical guidance for menopause management.

Society for Women's Health Research · SWHR Factsheet · 2022

Black women reach menopause at average age 49 — two years earlier than the national median — and spend more time in the menopause transition. Hispanic women also reach menopause approximately two years earlier than the national median.

Harlow SD, Burnett-Bowie SM, Greendale GA, Avis NE, Reeves AN, Richards TR, Lewis TT · Women's Midlife Health · 2022

Comprehensive SWAN review showing Black women experience earlier menopause, longer VMS, more sleep disruption, and higher depression rates than White women across 25 years of follow-up.

Multiple authors · Frontiers in Endocrinology · 2022

Women with PCOS have significantly higher rates of sleep disturbances including obstructive sleep apnoea. OSA in PCOS worsens insulin resistance, glucose tolerance, and cardiovascular risk through sympathetic nervous system activation and HPA axis dysregulation. Sleep quality is an under-recognised component of PCOS management.

Kagan R, Pinkerton JV, Santoro N et al · Menopause · 2021

2489 working women across 19707 visits. Women with new onset sleep disturbances had 31 percent higher risk of unemployment. Sleep disruption during perimenopause has measurable career-level consequences.

Crear-Perry J, Correa-de-Araujo R, Lewis Johnson T, McLemore MR, Neilson E, Wallace M · Journal of Women's Health · 2021

Position paper from the Black Mamas Matter Alliance identifying racism, residential segregation, economic injustice, and biased clinical care as the primary drivers of the Black maternal mortality crisis.

Guidi J, Lucente M, Sonino N, Fava GA · Psychotherapy and Psychosomatics · 2021

Systematic review of 267 original studies confirming that allostatic load — the cumulative wear and tear from chronic stress — predicts cardiovascular disease, metabolic disorders, cognitive decline, and all-cause mortality, providing the biological mechanism underlying the weathering hypothesis.

De Mello A, Chavez A, Mukarram M, Buras MR, Kling JM · Maturitas · 2021

Phoenix women aged 40–65 at low-income and homeless clinics: 54% Hispanic, 53% uninsured, mean Greene Climacteric Scale score 39.13 vs 30.14 for higher-income Scottsdale women. Only 3% on hormone therapy vs 23% in Scottsdale despite higher symptom burden.

Mukarram M, Rao V, Mukarram M, Hondula DM, Buras MR, Kling JM · Women's Health Reports · 2021

104 predominantly Hispanic uninsured women at Phoenix low-income clinics. 57% reported any menopause symptom bother; 20% reported extreme hot flash bother. Psychological and somatic clusters highest. Burden driven by demographic and socioeconomic factors rather than temperature.

Sachdeva M, Shah M, Alavi A · Journal of Cutaneous Medicine and Surgery · 2021

Black patients have a disproportionately high prevalence of hidradenitis suppurativa in the US relative to population share.

Nappi RE, Palacios S, Bruyniks N, Particco M, Panay N · Maturitas · 2021

GSM affects 27–84% of postmenopausal women; unlike hot flashes it does not resolve without treatment; highly effective low-risk local therapies exist.

Mah J, Pitre T · BMC Complementary Medicine and Therapies · 2021

Pooled analysis found magnesium supplementation reduced sleep onset latency by 17.36 minutes versus placebo. Total sleep time improved by 16 minutes. Low to very low quality of evidence overall but magnesium is cheap, widely available, and well-tolerated. RCT evidence supports oral magnesium less than 1g given up to three times daily for insomnia symptoms.

Lambrinoudaki I, Armeni E, Goulis D et al · Maturitas · 2020

Mediterranean diet adherence associated with improved cardiovascular risk, bone mineral density, and cognitive outcomes in menopausal women. Most comprehensively supported dietary pattern for menopausal health.

Collier EK, Price KN, Grogan TR, Shi VY · International Journal of Women's Dermatology · 2020

HS flares cluster in the late luteal phase and early menstruation. Groin is consistently involved. Hormonal treatment targeted at this pattern reduces flare frequency.

Eberle CE, Sandler DP, Taylor KW, White AJ · International Journal of Cancer · 2020

Sister Study cohort of 46,709 women found permanent hair dye use associated with a 45 percent increased breast cancer risk in Black women versus 7 percent in White women, and chemical straightener use every 5 to 8 weeks associated with about 30 percent higher breast cancer risk overall.

Hardeman RR, Karbeah J, Almanza J, Kozhimannil KB · Healthcare · 2020

Evaluation of a Black-owned, midwife-led birth center in Minneapolis found significantly lower rates of preterm birth and low birthweight among Black mothers compared with regional and national averages.

Taylor JK · Journal of Law, Medicine & Ethics · 2020

Legal and public health analysis concluding that structural racism is a measurable upstream driver of Black maternal mortality and must be addressed at the policy level.

Schomacker ML, Mackenzie AC, Feltmate C · Diagnosis (Berlin) · 2020

Mean diagnostic delay for endometriosis in the US is 6.7 years; 75% of affected women in this national survey were initially misdiagnosed.

Petersen EE, Davis NL, Goodman D, Cox S, Syverson C, Seed K, Shapiro-Mendoza C, Callaghan WM, Barfield W · MMWR Morbidity and Mortality Weekly Report · 2019

CDC analysis found Black and American Indian/Alaska Native women die from pregnancy-related causes at 3.2 and 2.3 times the rate of White women, with disparities persisting across age, education, and state of residence, pointing to systemic rather than individual drivers.

Williams DR, Lawrence JA, Davis BA · Annual Review of Public Health · 2019

Comprehensive review concluding that institutional racism, cultural racism, and interpersonal discrimination are root causes of racial health disparities, operating through stress, segregation, and unequal medical care to drive worse outcomes for Black Americans across nearly every disease category.

Helm JS, Nishioka M, Brody JG, Rudel RA, Dodson RE · Environmental Research · 2018

18 hair products used by Black women contained 45 endocrine disrupting or asthma-associated chemicals. Paraben prevalence is consistent with higher biomonitoring levels in Black women compared to White women.

Howell EA · Clinical Obstetrics and Gynecology · 2018

Comprehensive review identifying patient, provider, and hospital quality factors driving Black-White disparities in severe maternal morbidity and mortality, with the strongest evidence pointing to hospital quality of care: Black women disproportionately deliver in lower-quality hospitals where severe complications are more common.

Marsh EE, Al-Hendy A, Kappus D, Galitsky A, Stewart EA, Kerolous M · Journal of Women's Health · 2018

National survey of 1,176 US women found Black women reported earlier symptom onset, more severe pain and bleeding, more missed work, and were more likely to feel their doctor minimized their fibroid symptoms compared with White women.

Bower KM, Geller RJ, Perrin NA, Alhusen J · Women's Health Issues · 2018

Analysis of over 23,000 Black women in the PRAMS dataset found that those who reported experiences of racial discrimination had significantly higher odds of preterm birth, independent of income, education, and prenatal care.

Parazzini F, Di Martino M, Pellegrino P · Magnesium Research · 2017

Magnesium at 200 to 400mg daily significantly reduced PMS severity scores across multiple RCTs. Combination with B6 showed additive benefit for mood and breast tenderness.

Newman LA · Annals of Surgical Oncology · 2017

Review documenting that Black women in the United States have a 40 percent higher breast cancer mortality rate than White women despite slightly lower incidence, driven by later-stage diagnosis, less timely treatment, higher prevalence of aggressive triple-negative subtypes, and unequal access to high-quality care.

Stewart EA, Cookson CL, Gandolfo RA, Schulze-Rath R · BJOG · 2017

Systematic review of 60 studies confirming Black women have 2-3 times the incidence of fibroids, develop them on average 5 years earlier, and present with larger and more numerous tumors.

Weaver CM, Alexander DD, Boushey CJ et al · Osteoporosis International · 2016

Calcium 1200mg daily with vitamin D3 800 to 2000 IU daily preserves bone mineral density and reduces fracture risk in postmenopausal women. Most consistent nutritional intervention in menopausal health.

Hoffman KM, Trawalter S, Axt JR, Oliver MN · Proceedings of the National Academy of Sciences · 2016

Fifty percent of medical students and residents endorsed false beliefs about biological differences between Black and White patients including beliefs about pain tolerance, leading to systematic undertreatment of pain in Black patients.

DeSantis CE, Fedewa SA, Goding Sauer A, Kramer JL, Smith RA, Jemal A · MMWR Morbidity and Mortality Weekly Report · 2016

Black women have a ~40% higher breast cancer mortality rate than White women despite similar or lower incidence — driven by tumor biology, late-stage diagnosis, and treatment access gaps.

Daley A, Stokes-Lampard H, Thomas A, MacArthur C · Cochrane Database of Systematic Reviews · 2015

Cochrane review of RCTs on exercise interventions for vasomotor symptoms, mood, sleep, and quality of life in menopausal women. Exercise showed modest improvements in quality of life and mood. Evidence for hot flash reduction specifically was inconclusive. Exercise remains strongly recommended due to cardiovascular, bone, and mood benefits with low risk profile.

Avis NE, Crawford SL, Greendale G, Bromberger JT, Everson-Rose SA, Gold EB, Hess R, Joffe H, Kravitz HM, Tepper PG, Thurston RC · JAMA Internal Medicine · 2015

Median VMS duration: Black 10.1 years, Hispanic 8.9, White 6.5, Chinese 5.4, Japanese 4.8. Overall median 7.4 years — far longer than the '2 years' commonly told to patients.

Eltoukhi HM, Modi MN, Weston M, Armstrong AY, Stewart EA · American Journal of Obstetrics and Gynecology · 2014

Review establishing that Black women develop fibroids 2 to 3 times more often than White women, present with larger and more numerous tumors at younger ages, and undergo hysterectomy at higher rates with worse surgical outcomes, driven by both biology and disparate access to uterus-sparing care.

Williams DR, Mohammed SA · American Behavioral Scientist · 2013

Synthesis of decades of research showing institutional racism, cultural racism, and individual-level discrimination operate through stress, segregation, and unequal medical care to produce measurable physical and mental health disparities for Black Americans, independent of socioeconomic status.

Stewart EA, Nicholson WK, Bradley L, Borah BJ · Journal of Women's Health · 2013

National survey of 968 women found Black women with fibroids reported significantly greater symptom severity, more lost work time, longer delays before seeking care due to fear of hysterectomy, and far higher rates of feeling that doctors did not understand their experience compared with White women with fibroids.

Harlow SD, Gass M, Hall JE, Lobo R, Maki P, Rebar RW, Sherman S, Sluss PM, de Villiers TJ · American Journal of Epidemiology · 2013

Race/ethnicity, smoking, parity, and BMI independently predict age at natural menopause in SWAN's 3,302-woman longitudinal cohort.

Harlow SD, Gass M, Hall JE, Lobo R, Maki P, Rebar RW, Sherman S, Sluss PM, de Villiers TJ · Menopause · 2012

Gold standard clinical staging framework for reproductive aging. Defines early perimenopause as cycle variability of plus or minus 7 days, late perimenopause as 60 or more day amenorrhea, and menopause as 12 months amenorrhea. Keza's stage assessment algorithm is built on this framework.

Rahbar N, Asgharzadeh N, Ghorbani R · Gynecologic and Obstetric Investigation · 2012

EPA and DHA at 2 to 4g daily significantly reduced dysmenorrhea severity in 4 of 5 trials. Mechanism is competitive inhibition of arachidonic acid pathway reducing prostaglandin E2.

Wise LA, Palmer JR, Reich D, Cozier YC, Rosenberg L · American Journal of Epidemiology · 2012

Black Women's Health Study cohort of 23,580 premenopausal Black women followed for up to 10 years found long-term and frequent use of chemical hair relaxers significantly increased risk of uterine fibroids, with risk rising as years of use and number of scalp burns increased.

Sims M, Diez-Roux AV, Dudley A, Gebreab S, Wyatt SB, Bruce MA, James SA, Robinson JC, Williams DR, Taylor HA · American Journal of Public Health · 2012

Among 4,939 African American adults in the Jackson Heart Study, higher reports of lifetime and everyday discrimination were independently associated with higher prevalence of hypertension, supporting a direct biological pathway from perceived racism to cardiovascular disease.

Sowers MR, Zheng H, Greendale GA, Neer RM, Cauley JA, Ellis J, Johnson S, Finkelstein JS · Journal of Clinical Endocrinology & Metabolism · 2012

Bone density declines ~2%/year during the ~3-year rapid-loss phase centered on the final menstrual period; cumulative 10-year loss ~10%; greater spine than hip loss.

Petrelluzzi KF, Garcia MC, Petta CA et al. · European Journal of Obstetrics and Gynecology and Reproductive Biology · 2012

Compared 32 women with endometriosis to 36 healthy controls. Found hypocortisolism as biomarker of aberrant HPA responses in endometriosis. Women with endometriosis reported higher trait anxiety. Incapacitating pain was a strong predictor of HPA dysregulation.

Bromberger JT, Kravitz HM, Chang YF, Cyranowski JM, Brown C, Matthews KA · Psychological Medicine · 2011

Perimenopause independently elevates risk of major depressive episode even in women with no prior depression history.

Grant P · Phytotherapy Research · 2010

RCT of 30 women with PCOS. Spearmint tea twice daily for 30 days produced significant reductions in free testosterone. Biologically relevant anti-androgenic effect from a simple dietary intervention.

Geronimus AT, Hicken MT, Pearson JA, Seashols SJ, Brown KL, Cruz TD · Human Nature · 2010

Black women aged 49-55 had telomeres on average 7.5 years biologically older than White women of the same chronological age. First population-based confirmation of the weathering hypothesis at the cellular level.

Green R, Santoro N · Women's Health (London) · 2009

SWAN found vasomotor symptoms at perimenopause entry in 46% of Black, 47% of Hispanic, 37% of White, 21% of Chinese American, and 18% of Japanese American women. Vaginal dryness most prevalent in Hispanic women. Symptom experience varies by ethnicity independent of BMI or SES.

Fairweather D, Frisancho-Kiss S, Rose NR · Clinical Immunology and related journals · 2008

Women undergo three major endocrinological transitions — puberty, pregnancy, and menopause — each exerting significant influence on innate and adaptive immune function. Human epidemiological data, animal studies, and mechanistic experiments demonstrate a strong link between menopausal endocrine changes and the development or worsening of autoimmune diseases including multiple sclerosis, lupus, type 1 diabetes, rheumatoid arthritis, and psoriasis. Oestrogen, progesterone, androgens, and their interactions with Th1 and Th2 immune responses maintain a delicate balance between host defence and autoimmunity.

Kravitz HM, Zhao X, Bromberger JT, Gold EB, Hall MH, Matthews KA, Sowers MR · Sleep · 2008

Sleep disturbance increases significantly with menopausal stage in a multiethnic cohort; Black women had highest adjusted odds of difficulty falling asleep.

Brocard A, Knol AC, Khammari A, Dreno B · Dermatology · 2007

22 HS patients treated with 90mg zinc gluconate daily. Complete remission in 8 patients and partial remission in 14. Only HS-specific prospective supplement study in the published literature.

Lethaby A, Marjoribanks J, Kronenberg F, Roberts H, Eden J, Brown J · Cochrane Database of Systematic Reviews · 2007

30 randomised controlled trials reviewed. No conclusive evidence that phytoestrogens reduce hot flushes or night sweats. Some individual studies show modest benefit but results are inconsistent across the evidence base.

Bromberger JT, Matthews KA, Schott LL, Brockwell S, Avis NE, Kravitz HM, Everson-Rose SA, Gold EB, Sowers M, Randolph JF Jr · Journal of Affective Disorders · 2007

Late perimenopause associated with ~2.5× higher odds of clinically significant depressive symptoms (CES-D ≥16) vs premenopause in SWAN; Black women had highest absolute depressive symptom burden.

Geronimus AT, Hicken M, Keene D, Bound J · American Journal of Public Health · 2006

Black women, both poor and non-poor, had the highest probability of high allostatic load scores compared to White women and Black men regardless of socioeconomic status, confirming the weathering hypothesis that chronic racism causes accelerated biological aging in Black women.

Gold EB, Colvin A, Avis N, Bromberger J, Greendale GA, Powell L, Sternfeld B, Matthews K · American Journal of Public Health · 2006

Black women had the highest rates of hot flashes/night sweats; Chinese and Japanese women had the lowest rates; Hispanic women were intermediate — across the 7-site SWAN cohort of 3,302 midlife women.

Atsma F, Bartelink ML, Grobbee DE, van der Schouw YT · Menopause · 2006

Meta-analysis of 24 studies: postmenopausal women have ~1.5× cardiovascular risk of age-matched premenopausal women; surgically menopausal women are at highest risk.

Baird DD, Dunson DB, Hill MC, Cousins D, Schectman JM · American Journal of Obstetrics and Gynecology · 2003

Ultrasound screening found >80% of Black women and ~70% of White women had fibroids by age 50; Black women were affected earlier and more severely.

Sowers M, Crawford S, Sternfeld B and the SWAN collaborative group · Journal of Women's Health · 2000

The largest longitudinal study of 3302 women aged 42 to 52 followed through the menopause transition across seven US sites. Documents vasomotor symptoms, mood changes, sleep disruption, and cardiovascular changes across racial and ethnic groups. Foundational dataset for all perimenopause cohort comparisons in Keza.

Nestler JE, Jakubowicz DJ, Reamer P, Gunn RD, Allan G · New England Journal of Medicine · 1999

Myo-inositol significantly improved ovulatory function and reduced androgens and insulin resistance in PCOS. Confirmed comparable to metformin 1500mg with fewer side effects in a 2011 RCT.

James SA · Culture, Medicine and Psychiatry · 1994

Foundational research showing that high-effort coping with chronic social and economic adversity (John Henryism) is associated with significantly higher rates of hypertension and cardiovascular disease among Black Americans, especially those with limited socioeconomic resources.