Table 1.

Study Criteria and Exclusions Applied for Cohort Identification, Patients with UF-HMB and UF-only

Characteristic	UF-HMB	UF-only
All patients with ≥1 UF diagnostic claim in the database	1,513,396
Female, aged 18–50 years	1,084,061
≥2 dataset claims for HMB ever (≥30 days apart) (with HMB) or no claims for HMB ever (without HMB)a	422,558	385,158
≥2 diagnoses for UF ever in the dataset	237,060	117,431
12-month history without a UF diagnosis before index date	109,825	47,129
≥2 years continuous follow-up after the index date and included in the study (allowing for one 30-day gap in coverage each year)	66,313	26,068
Regression analysis only: no claims for endometriosis	50,409	22,384

Bold values are final cohort numbers used in the overall analysis during the follow-up period.

^a Patients with UF plus one claim for HMB were excluded.

HMB, heavy menstrual bleeding; UF, uterine fibroids.