Adriëtte Oostvogels

Response n=3100 Non-Response* n=4169 %/mean (SD) %/mean (SD) p-value Maternal characteristics Age (years) 31.1 (4.7) 30.3 (5.6) p<0.001 Body mass index (kg/m 2 ) 22.7 (3.6) 23.2 (4.2) p<0.001 Education (years) 9.5 (3.7) 8.1 (4.3) p<0.001 Ethnicity (%) Dutch 63 45 Surinamese-Hindu 1 2 Black Caribbean 4 6 Turkish 4 6 p<0.001 Moroccan 6 12 Ghanaian 1 3 Other 21 26 Parity (%) Nulliparous 58 54 p<0.001 Multiparous 42 46 Smoking No 91 91 p=1.000 during pregnancy (%) Yes 9 9 Alcohol consumption No 74 83 p<0.001 during pregnancy (%) Yes 26 17 Offspring’s characteristics Foetal sex (%) Male 49 52 p=0.039 Female 51 48 Gestational age at birth (days) Mean (SD) 279 (12.9) 278 (13.3) p=0.012 Supplementary Table 1. Analysis of the response and non-response groups. * Non-response group consisted of women who participated in the ABCD-study, but did not give their consent for the biomarker study (no information on early pregnancy lipids) or with less than 3 blood pressure measurements or with first blood pressure measured after 20 weeks of gestation. Exclusion criteria applied to the response group were also applied to the non-response group. Supplementary File 1. 56 Chapter 2