The prevalence of endometriosis in adult female patients with hidradenitis suppurativa: a cross-sectional study using the All of Us Research Programme

The association between hidradenitis suppurativa (HS) and endometriosis was explored using the US National Institutes of Health All of Us database. The odds of having endometriosis were 1.67-fold [95% confidence interval (CI) 1.36–2.02] in those with HS compared with those without the condition, after controlling for demographics, smoking status, body mass index, polycystic ovarian syndrome and type 2 diabetes mellitus. After stratifying by age range, we found that participants with HS aged 18–45 years had an odds ratio (OR) of 1.59 (95% CI 1.18–2.10), those 46–60 years had an OR of 1.53 (95% CI 1.08–2.10) and those over 60 years had an OR of 2.63 (95% CI 1.58–4.12).