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Participants were asked about their use of contraceptives and their fertility.
Note that a large subcohort of adult female participants answered more detailed questions on these topics in the context of an additional questionnaire on women's reproductive health.
Another additional assessment, NEXT, also included some questions about contraceptive use and fertility.
Questions English | Questions Dutch | Variable | Assessment | Age |
Have you ever used hormonal contraception? | Hebt u ooit hormonale anticonceptie gebruikt? | FEM8 | 1A or 1A | 18+ |
During how many months did you use hormonal contraception in the past 10 years? | Hoeveel maanden hebt u in de afgelopen 10 jaar hormonale anticonceptie gebruikt? | FEM8A | 1A or 1A | 18+ |
Did you use hormonal contraception in the past month? | Hebt u de afgelopen maand hormonale anticonceptie gebruikt? | FEM8B | 1A or 1A | 18+ |
Have you used hormonal contraception in the 5 years before your last menstruation (also Mirena IUD)? | Hebt u in de 5 jaar voordat u voor het laatst ongesteld was hormonale anticonceptie gebruikt (ook prikpil of Mirena spiraal)? | FEM10A | 1A or 1A |