Daniela Rodrigues, Augusta Gama, Aristides M Machado-Rodrigues, Helena Nogueira, Maria-Raquel G Silva, Vítor Rosado-Marques, Cristina Padez
Social inequalities in traditional and emerging screen devices among Portuguese children: a cross-sectional study
BMC public health
published associations combined oral contraceptive use uterine fibroid development lacked prospective imaging ultrasound distinguish incident prevalent fibroids study environment lifestyle fibroids prospectively followed fibroidfree africanamerican women group highest disease burden us identify incident cases examined associations combined oral contraceptive use 40month cumulative risk fibroids history hormonal contraceptive use collected via telephone interview enrollment fibroid identification performed using transvaginal ultrasonography enrollment 20 40months followup inverse probability weights exposures censoring used construct weighted risk ratios wrr weighted risk different wrd estimators control differences fibroid risk factors exposure groups addition unweighted fully adjusted logbinomial regression models arr run comparison 1308 participants analysis sample 70 used combined oral contraceptives 17 developed fibroids 40 months observed inverse association ever use combined oral contraceptives cumulative fibroid incidence wrr 078 95 confidence interval ci 060 100 wrd 005 95 ci 011 0 arr 076 95 ci 060 098 fibroid incidence greater participants started using combined oral contraceptives age 17 years among younger initiators though restriction everusers made estimate less precise wrr 125 95 ci 089 176 wrd 004 95 ci 002 010 consistent patterns fibroid incidence seen among everusers duration years since last combined oral contraceptives use