. Author manuscript; available in PMC: 2016 Nov 1.

Published in final edited form as: Paediatr Perinat Epidemiol. 2015 Nov;29(6):576–588. doi: 10.1111/ppe.12245

Table 1.

Characteristics of 421 women who recalled their time-to-pregnancy in the first trimester: The Snart-Gravid Study, Denmark, 2007–2012.

Characteristic	Percent
Gestational age, weeks (median)	8
Age <30 (%)	62
Body mass index, kg/m² (%)
<20	17
20–24	57
25–29	20
≥30	6
Regular cycles (%)	80
Last method of contraception (%)
Oral contraceptive pills	58
Barrier methods	34
Other^a	8
Gravid (%)	47
Parous (%)	39
Current smoker (%)	12

Includes withdrawal and fertility awareness methods.