Table 2.
Univariate analysis of maternal health and pregnancy history, risk factors for LBW in Peshawar, 2003.
| Variable | Birthweight | OR | 95% CI | ||
| <2.5 kg | ≥ 2.5 kg | ||||
| (N = 1039) | (n = 101) | (n = 938) | |||
| Gestational age | |||||
| Preterm | 229(22.8) | 60(26.2) | 169(73.8) | 6.4 | [4.1, 9.8] ** |
| Full term | 776(77.2) | 41(5.3) | 735(94.7) | ||
| Maternal diabetes | |||||
| Yes | 27(2.7) | 3(11.1) | 24(88.9) | 1.2 | [0.4, 3.9] |
| No | 974(97.3) | 96(9.9) | 878(90.1) | ||
| Maternal hypertension | |||||
| Yes | 183(18.3) | 25(13.7) | 158(86.3) | 1.6 | [1.0, 2.6]* |
| No | 816(81.7) | 74(9.1) | 742(90.9) | ||
| Maternal anaemia | |||||
| Yes | 383(38.5) | 47(12.3) | 336(87.7) | 1.5 | [1.0, 2.3] * |
| No | 613(61.5) | 52(8.5) | 561(91.5) | ||
| Other health conditions | |||||
| Yes | 59(6.0) | 8(13.6) | 51(86.4) | 1.5 | [0.7, 3.3] |
| No | 918(94.0) | 87(9.5) | 831(90.5) | ||
| Maternal height | |||||
| <1.55 mtr | 310(30.8) | 38(12.3) | 272(87.7) | 1.4 | [0.9, 2.2] |
| ≥ 1.55 mtr | 696(69.2) | 62(8.9) | 634(91.1) | ||
| Maternal weight | |||||
| <57 kg | 246(24.4) | 35(14.2) | 211(85.8) | 1.8 | [1.2, 2.8] ** |
| ≥ 57 kg | 763(75.6) | 65(8.5) | 698(91.5) | ||
| Maternal BMI | |||||
| ≤ 19.0 kg/m2 | 40(4.0) | 4(10) | 36(90) | 1.0 | [0.4, 2.9] |
| >19.0 kg/m2 | 958(96.0) | 96(10) | 862(90) | ||
| Any abortion/miscarriagea | |||||
| Yes | 232(22.7) | 33(14.2) | 199(85.8) | 1.8 | [1.1, 2.7] * |
| No | 788(77.3) | 68(8.6) | 720(91.4) | ||
| Abortion/miscarriageb | |||||
| Yes | 172(17.2) | 25(14.5) | 147(85.5) | 1.7 | [1.1, 2.8] * |
| No | 826(82.8) | 74(9.0) | 752(91.0) | ||
| Gap between pregnanciesc | |||||
| <1.5 years | 220(33.2) | 25(11.4) | 195(88.6) | 1.1 | [0.7, 1.9] |
| ≥ 1.5 years | 443(66.8) | 46(10.4) | 397(89.6) | ||
| Pregnancy registration | |||||
| No | 545(53.9) | 67(12.3) | 478(87.7) | 1.8 | [1.2, 2.8] ** |
| Yes | 467(46.1) | 34(7.3) | 433(92.7) | ||
**p < 0.01, *p < 0.05, BMI (body mass index), a History of any abortion/miscarriage in reproductive life, | b Abortion/miscarriage immediately preceding this pregnancy, c gap between this and the previous pregnancy (excluding primiparas mothers).