Table 1.
Characteristic | No. of Persons | % |
---|---|---|
Age, years | ||
<25 | 377 | 50.2 |
25–35 | 283 | 37.7 |
>35 | 91 | 12.1 |
Education | ||
<12th grade | 412 | 54.9 |
12th grade | 229 | 30.5 |
>12th grade | 110 | 14.6 |
Household incomea | ||
Above poverty level | 291 | 38.7 |
At or below poverty level | 460 | 61.3 |
Food securityb,c | ||
High | 421 | 56.1 |
Low | 242 | 32.3 |
Very low | 87 | 11.6 |
Energy intake,d kJ/day | ||
<11,000 | 453 | 60.3 |
≥11,000 | 298 | 39.7 |
Prestudy paritye | ||
0 | 325 | 43.3 |
1 | 201 | 26.8 |
≥2 | 225 | 30.0 |
HIV statusc | ||
Negative | 645 | 86.2 |
Positive | 103 | 13.8 |
Smoking | ||
No | 748 | 99.6 |
Yes | 3 | 0.4 |
Alcohol consumption | ||
No | 710 | 94.5 |
Yes | 41 | 5.5 |
Child sex | ||
Male | 387 | 51.5 |
Female | 364 | 48.5 |
Birth weight, gc | ||
≥2,500 | 687 | 91.6 |
<2,500 | 63 | 8.4 |
Gestational age, weeks | ||
≥37 | 648 | 86.3 |
<37 | 103 | 13.7 |
Size for gestational age | ||
>10th percentile | 41 | 5.5 |
10th–90th percentiles | 528 | 70.3 |
<10th percentile | 182 | 24.2 |
Mode of deliveryc | ||
Vaginal | 569 | 77.3 |
Cesarean | 167 | 22.7 |
Abbreviation: HIV, human immunodeficiency virus.
a Poverty was defined as a household income below 386 rands per person per month (about US$30) based on Statistics South Africa guidelines for mid-2013 (48).
b Food insecurity was defined on the basis of the US National Center for Health Statistics’ Household Food Security Survey (46).
c Numbers do not add up to 751 because of missing data.
d Low energy intake (<11,000 kJ/day) was defined on the basis of US Institute of Medicine guidelines (49).
e Percentages do not add up to 100 because of rounding.