| Description: | Oral contraceptive (ever, yes/no) [baseline] |
| Category: | Recruitment questionnaire |
| Participants | 1,348,927 | Value Type | Categorical (single) | Sexed | Females only | Debut | Dec 2022 | |||
| Item count | 1,348,927 | Item Type | Data | Instances | Singular | Version | Dec 2022 | |||
| Stability | Updateable | Strata | Primary | Array | No | Cost Tier | dX oX sX |
