Table 6.

Response rates for questionnaires

Data collection time point	Targeted participants (n)	Participants responded (n)	Response rate (%)
Mothers <14 weeks gestation Mothers at 14–26 weeks gestation	2189	2145	97.9
Mothers at 14–26 weeks gestation and those recruited at <14 weeks gestation	563	475	84.3
Fathers at 14–26 weeks gestation	1325	1315	99.2
Mothers at 27–40 weeks gestation	1838	1830	99.5
Mothers at 3 months postpartum	2051	1811	88.3
Fathers at 3 months postpartum	1287	1150	89.3
Mothers at 6 months postpartum	1727	1523	88.1
Mothers at 1 year postpartum	1747	1305	74.7
Mothers at 2 years postpartum	1809	1299	71.8
Mothers at 3 years postpartum	1648	1282	77.7