Table 1 Demographics
Measure | Overall sample (N=235) | Male sample (N=113) | Female sample (N=122) |
|---|---|---|---|
Child characteristics | |||
Gestational age (week), mean (s.d.) | 38.75 (1.20) | 38.56 (1.31) | 38.93 (1.07) |
Birth weight (g), mean (s.d.) | 3111.69 (412.38) | 3161.86 (431.93) | 3065.23 (389.43) |
APGAR score, mean (s.d.) | 9.00 (0.07) | 9.00 (0.00) | 8.99 (0.09) |
Age (year), mean (s.d.) | 4.58 (0.08) | 4.59 (0.09) | 4.58 (0.07) |
Total brain volume (cm3), mean (s.d.) | 1212.61 (107.40) | 1268.25 (98.11) | 1161.04 (88.49) |
Right amygdala volume (mm3), mean (s.d.) | 1659.60 (197.98) | 1741.61 (196.86) | 1584.36 (167.41) |
Left amygdala volume (mm3), mean (s.d.) | 1583.81 (193.57) | 1653.60 (199.22) | 1519.14 (164.27) |
Right amygdala FA, mean (s.d.) | 0.15 (0.02) | 0.15 (0.02) | 0.15 (0.02) |
Left amygdala FA, mean (s.d.) | 0.16 (0.02) | 0.16 (0.02) | 0.16 (0.02) |
Mother characteristics | |||
26-week EPDS raw score, mean (s.d.) | 7.79 (4.66) | 7.26 (4.30) | 8.28 (4.93) |
3-month EPDS raw score, mean (s.d.) | 6.50 (5.14) | 6.10 (4.85) | 6.84 (5.38) |
12-month BDI raw score, mean (s.d.) | 6.93 (7.63) | 6.18 (6.70) | 7.63 (8.39) |
24-month BDI raw score, mean (s.d.) | 7.62 (7.47) | 7.18 (6.99) | 8.06 (7.96) |
36-month BDI raw score, mean (s.d.) | 7.48 (7.34) | 6.53 (6.12) | 8.39 (8.28) |
54-month BDI raw score, mean (s.d.) | 6.28 (8.19) | 5.40 (6.63) | 7.08 (9.38) |
Prenatal maternal depression standardized score, mean (s.d.) | 0.07 (1.03) | −0.05 (0.95) | 0.18 (1.09) |
Average postnatal maternal depression standardized score, mean (s.d.) | 0.04 (0.91) | −0.03 (0.79) | 0.10 (1.01) |
Maternal ethnicity, % | |||
Chinese | 52.3 | 49.6 | 54.9 |
Malay | 30.2 | 34.5 | 26.2 |
Indian | 17.4 | 15.9 | 18.9 |
Maternal education, % | |||
Primary school | 5.2 | 5.4 | 5.0 |
Secondary school | 29.2 | 26.8 | 31.4 |
Pre-university, diploma or technical course | 37.8 | 37.5 | 38.0 |
University undergraduate level | 24.9 | 27.7 | 22.3 |
Above university undergraduate level | 3.0 | 2.7 | 3.3 |
