Table 2

Descriptive characteristics of individuals included in analyses (n=5011)*

Males
(n=2396, 47.8%)
Females
(n=2615, 52.2%)
Missing
(n, %)
Parental occupational class, n (%)
I—Professional, II—managerial/technical479 (21.8)520 (21.4)391 (7.8)
III—Manual or non-manual1311 (59.8)1419 (58.5)
IV—Partly skilled, V—unskilled404 (18.4)487 (20.1)
Prenatal maternal factors
 Age at birth, mean (SD)26.0 (5.3)26.0 (5.3)372 (7.4)
Previous pregnancies, n (%)366 (7.3)
0806 (36.6)901 (36.9)
1–21070 (48.6)1194 (48.9)
3+325 (14.8)349 (14.3)
Smoking during pregnancy, n (%)917 (42.0)1069 (44.0)395 (7.9)
Clinical diabetes, n (%)19 (0.9)20 (0.8)401 (8.0)
Postnatal infant factors
Gestational age, n (%)1182 (23.6)
Preterm (<37 weeks)73 (4.0)79 (3.9)
Term (37–41 weeks)1586 (87.5)1736 (86.1)
Post-term (>41 weeks)154 (8.5)201 (10.0)
 Birth weight (g), mean (SD)3382 (534)3255 (498)368 (7.3)
 Breast feeding >3 months, n (%)262 (13.5)291 (13.5)907 (8.6)
Infant health concerns, n (%)431
01578 (72.9)1890 (78.2)
1474 (21.9)445 (18.4)
2+112 (5.2)81 (3.4)
Accelerometry data
 MVPA minutes, mean (SD)50.4 (26.6)51.6 (24.7)0 (0)
 Wear time hours, mean (SD)16.0 (1.3)15.7 (1.3)0 (0)
  • *Sample size for each prenatal/postatal factor varies due to missing data.

  • MVPA, moderate-to-vigorous physical activity.