Table 1

Sample characteristics (N= 4914)
Child characteristics N Missing N (%)
Mean (SD) gestational age at birth (weeks) 4896 39.8 (1.8) 18 (0.3)
Mean (SD) birth weight (g) 4609 3441 (568) 305 (6.2)
Mean (SD) BMI around 4 years1 3117 15.8 (1.3) 1797 (36.6)
Sex % girl 2458 50.0 0
Ethnicity % non-Western 1188 24.4 39 (0.7)
Firstborn % yes 2789 56.8 0
Only child at age 4 years % yes 1042 21.6 82 (1.7)
Daycare attendance at 3 years % at least 8 h/week 3338 77.1 582 (11.8)
Family characteristics
Mean (SD) maternal age at enrolment (years) 4914 31.5 (4.6) 0
Mean (SD) BMI mother before pregnancy 3703 23.3 (3.9) 1211 (24.6)
Mean (SD) BMI partner before pregnancy 3634 25.2 (3.3) 1280 (26.0)
Marital status % single 370 7.9 237 (4.8)
Household income % < 2200€/month 1321 32.4 833 (17.0)
Maternal education % less than college 1979 42.1 210 (4.3)
Smoking during pregnancy % yes 944 21.4 501 (10.2)

Tharner et al.

Tharner et al. International Journal of Behavioral Nutrition and Physical Activity 2014 11:14   doi:10.1186/1479-5868-11-14

Open Data