Table 3 Obstetric factors associated with delivery of low birth weight babies, WAU, 2020
Characteristics | Cases (n = 146) | Controls (n = 292) | Crude OR (95% CI) | p-value |
|---|---|---|---|---|
Mother’s weight (kg) | ||||
< 50 | 4 (2.7) | 9 (3.1) | 0.88 (0.19–3.24) | 0.842 |
≥ 50 | 142 (97.3) | 283 (96.9) | 1 | |
Mother’s height (m) | ||||
< 1.5 (short) | 47 (32.2) | 52 (17.8) | 2.19 (1.34–3.55) | 0.001* |
≥ 1.5 (normal) | 99 (67.8) | 240 (82.2) | 1 | |
Mother’s BMI (kg/m2) | ||||
< 18.5 (underweight) | 4 (2.7) | 9 (3.1) | 1.26 (0.35–4.45) | 0.715 |
18.5–24.9 (normal) | 35 (23.9) | 48 (16.4) | 2.07 (1.11–3.87 | 0.022 |
25–29.9 (overweight) | 81 (55.5) | 161 (55.1) | 1.43 (0.85–2.40) | 0.176 |
≥ 30 (obese) | 26 (17.8) | 74 (25.3) | 1 | |
Parity | ||||
Primiparous | 83 (56.8) | 148 (50.7) | 1.28 (0.84–1.95) | 0.223 |
Multiparous | 63 (43.2) | 144 (49.3) | 1 | |
Gravidity | ||||
Primigravida | 80 (54.8) | 117 (40.1) | 1.81 (1.18–2.76) | 0.003* |
Multigravida | 66 (45.2) | 175 (59.9) | 1 | |
ANC Visits | ||||
< 4 times | 60 (41.1) | 60 (20.5) | 2.69 (1.70–4.26) | < 0.001* |
≥ 4 times | 86 (58.9) | 232 (79.5) | 1 | |
Gestational age (weeks) | ||||
Preterm (< 37) | 134 (91.8) | 213 (72.9) | 12.58 (1.66–94.84) | 0.014* |
Term (37–40) | 11 (7.5) | 59 (20.2) | 3.72 (0.45–30.72) | 0.221 |
Post term (> 40) | 1 (0.7) | 20 (6.9) | 1 | |
Anaemia during pregnancy | ||||
Anaemic (Hb < 11.0 g/dl) | 82 (56.2) | 64 (21.9) | 4.56 (2.90–7.16) | < 0.001* |
Not anaemic (Hb ≥ 11.0 g/dl) | 64 (43.8) | 228 (78.1) | 1 | |
Birth spacing | ||||
< 2 years | 24 (29.3) | 29 (15.4) | 2.26 (1.15–4.39) | 0.008* |
≥ 2 years | 58 (70.7) | 159 (84.6) | 1 | |
Previous abortion | ||||
Ever had | 42 (28.8) | 73 (25.0) | 1.21 (0.75–1.93) | 0.398 |
Never had | 104 (71.2) | 219 (75.0) | 1 | |