Chiuve et al published a large cohort study in the Journal of Epidemiology and Community Health that evaluated the association between uterine fibroids and diagnosed depression, anxiety and self-directed violence. Women aged 18-50 years with diagnosed uterine fibroids (n=313,754) were identified in the Optum Clinformatics commercial insurance claims database and matched 1:2 on age and calendar time to women without (n=627,539). After adjusting for confounders, women with uterine fibroids had a higher rate of depression, anxiety and self-directed violence then women not diagnosed with fibroids. Among women with pain symptoms and heavy menstrual bleeding, the hazard ratio comparing women with fibroids to women without was 1.21 for depression, 1.18 for anxiety and 1.68 for self-directed violence. Among women with fibroids, those who underwent hysterectomy had higher rates of depression, anxiety and self-directed violence.
A third study by Wesselink et al in Human Reproduction examined ambient air pollution exposure and the risk of developing uterine fibroids. This was a prospective cohort study of 21,998 premenopausal Black women in 56 US metropolitan areas from 1997 to 2011. During the follow up, 28.4% of participants (n=6238) reported uterine fibroid diagnosis by ultrasound or surgery. Increased ozone concentrations were associated with an increased risk of being diagnosed with uterine fibroids, with a stronger association among women less than 35 years of age and parous women. Other pollutants, specifically particulate matter <2.5 microns and nitrogen dioxide, were not associated with an increased risk of uterine fibroids.