Table 2. Predictors of LBW in subsequent pregnancy by maternal characteristics in first pregnancy.
| Maternal characteristics | LBW in subsequent pregnancies | |||||
|---|---|---|---|---|---|---|
| At risk | n (%) | RR* | 95%CI | RR** | 95%CI | |
| LBW in first pregnancy | ||||||
| Yes | 366 | 103 (28.1) | 5.37 | 4.36–6.61† | 5.08 | 4.01–6.45† |
| No | 4,237 | 222 (5.2) | Ref | Ref | ||
| Area of residence | ||||||
| Rural | 1,985 | 160 (8.1) | 1.31 | 1.06–1.62†† | 1.18 | 0.93–1.51 |
| Urban | 2,587 | 159 (6.2) | Ref | Ref | ||
| Attendance to ANC | ||||||
| <4 | 767 | 75 (9.8) | 1.54 | 1.20–1.97†† | 1.45 | 1.09–1.93†† |
| ≥4 | 3,740 | 238 (6.4) | Ref | Ref | ||
| Gestational age (weeks) | ||||||
| <37 | 344 | 61 (17.7) | 2.88 | 2.23–3.73† | 2.67 | 1.98–3.60† |
| ≥37 | 3,965 | 244 (6.2) | Ref | Ref | ||
| HIV status | ||||||
| Positive | 87 | 12 (13.8) | 2.07 | 1.20–3.59† | 1.99 | 1.05–3.78†† |
| Negative | 2,058 | 137 (6.7) | Ref | Ref | ||
| Preeclampsia/eclampsia | ||||||
| Yes | 175 | 24 (13.7) | 2.02 | 1.37–2.97†† | 2.24 | 1.47–3.42† |
| No | 4,428 | 301 (6.8) | Ref | Ref | ||
*RR crude relative risk;
**RR adjusted relative risk–adjusted for maternal BMI, Maternal age, and maternal education level in the first pregnancy;
†p<0.001;
††p<0.05.