Table 1: Description of sub-sample participant demographic characteristics .

%SE

Age
 0–1914.71.48
 20–2962.92.08
 30–3919.51.73
 40–492.80.73
Race
 Black African60.31.70
 Coloured39.11.71
 White/Asian1.60.55
Education
 Primary3.50.79
 Secondary92.01.16
 Tertiary—incomplete1.90.62
 Tertiary—complete2.60.65
Marital status
 Legally married18.91.65
 Traditionally married7.71.15
 Living together4.10.84
 Never married/single66.92.00
 Divorced/separated/widowed2.40.68
Employment status
 Unemployed56.92.14
 Employed full-time23.71.86
 Employed part-time/self-employed12.01.43
 Student7.41.10
Socioeconomic status
 Low (4 or less items)24.11.78
 High (5 or more items)75.91.78
Parity
 034.02.00
 135.12.10
 219.61.70
 38.21.20
 ≥43.10.70
Planned pregnancy
 Yes31.82.10
 No68.22.10
Gestational age
 0–12 weeks (1st trimester)22.81.90
 13–24 weeks (2nd trimester)57.42.30
 25–40 weeks (3rd trimester)19.81.80