Background
Methods
Study design, duration and settings
Participants and data collection
Gravidity | 1. Primigravida (Women at their first pregnancy) |
2. Multigravida (2–4 pregnancies) | |
3. Grand multigravida (> 4 pregnancies) | |
Parity | 1. Primiparous (Women who had one previous term delivery) |
2. Multiparous (2–4 previous term deliveries) | |
3. Grand multiparous (> 4 previous term deliveries) | |
Gestational age | 1. Preterm delivery: Delivery from 28 to 36 weeks of gestation |
2. Term delivery: Delivery from 37 to 42 weeks of gestation | |
3. Post-term delivery: Delivery above 42 weeks of gestation | |
Apgar score at fifth minute | Neonatal asphyxia. Yes (< 7) versus No (≥ 7) |
Statistical analysis
Ethical considerations
Results
Variable | Low birthweight | Total N (%) = 1787 | |
---|---|---|---|
Yes, n = 180 (%) | No, n = 1607 (%) | ||
Maternal age | |||
Mean (SD) | 25.9 (7.5) | 26.0 (6.5) | 26.0 (6.5) |
Median (IQR) | 25.0 (19.0–32.0) | 25.5 (21.0–30.5) | 25.0 (21.0–30.5) |
Marital status | |||
Single | 60 (33.5) | 374 (23.4) | 434 (24.4) |
Married | 119 (66.5) | 1226 (76.6) | 1346 (75.6) |
Gravidity | |||
Primigravida | 65 (36.3) | 363 (23.2) | 428 (24.5) |
Multigravida | 62 (34.6) | 782 (50.0) | 844 (48.3) |
Grand multigravida | 52 (29.1) | 421 (26.9) | 474 (27.2) |
Parity | |||
Primiparous | 66 (36.9) | 375 (24.0) | 441 (25.3) |
Multiparous | 63 (35.2) | 774 (49.4) | 837 (47.9) |
Grand multiparous | 50 (27.9) | 417 (26.6) | 468 (26.8) |
Gestational age | |||
Term | 89 (54.9) | 933 (63.4) | 1022 (62.6) |
Preterm | 69 (42.6) | 462 (31.4) | 532 (32.6) |
Post term | 4 (2.5) | 76 (5.2) | 80 (4.9) |
Maternal HIV status | |||
Positive | 11 (6.1) | 70 (4.4) | 81 (4.5) |
Negative | 169 (93.9) | 1535 (95.6) | 1705 (95.5) |
Gender of infant | |||
Male | 92 (52.0) | 810 (50.5) | 902 (50.6) |
Female | 85 (48.0) | 795 (49.5) | 881 (49.4) |
Variable | LBW, n (%) | Total, N | OR (95% CI) | p-value |
---|---|---|---|---|
Maternal age | ||||
< 20 years | 48 (14.0) | 365 | 1.6 (1.1–2.3) | 0.008 |
≥ 20 years | 129 (9.1) | 1422 | ||
Marital status | ||||
Single | 58 (13.5) | 430 | 1.6 (1.0–2.7) | 0.034* |
Married | 113 (8.4) | 1343 | ||
Primiparity | ||||
Yes | 66 (15.0) | 441 | 1.9 (1.3–2.7) | < 0.001* |
No | 113 (8.7) | 1304 | ||
Gestational age | ||||
Term | 88 (8.7) | 1022 | < 0.001* | |
Preterm | 69 (13.0) | 531 | 2.2 (1.5–3.2) | |
Post term | 4 (5.0) | 80 | 0.3 (0.1–1.4) | |
Maternal HIV status | ||||
Positive | 11 (13.6) | 81 | 1.4 (0.7–2.7) | 0.274 |
Negative | 169 (7.0) | 1704 | ||
Gender of infant | ||||
Female | 85 (9.7) | 880 | 1.0 (0.7–1.4) | 0.225 |
Male | 92 (10.2) | 902 |
Variable | LBW, n (%) | Total, N | aOR (95% CI) | p-value |
---|---|---|---|---|
Maternal age | ||||
< 20 years | 48 (14.0) | 365 | 1.0 (1.0–1.1) | 0.51 |
≥ 20 years | 129 (9.1) | 1422 | ||
Marital status | ||||
Single | 58 (13.5) | 430 | 0.8 (0.5–1.1) | 0.180 |
Married | 113 (8.4) | 1343 | – | |
Primiparity | ||||
Yes | 66 (15.0) | 441 | 1.1 (0.1–8.4) | 0.960 |
No | 113 (8.7) | 1304 | – | |
Gestational age | ||||
Term | 88 (8.7) | 1022 | – | |
Preterm | 69 (13.0) | 531 | 1.5 (1.1–2.2) | 0.001* |
Post term | 4 (5.0) | 80 | 0.6 (0.2–1.6) | 0.277 |
Sex of infant | ||||
Female | 85 (9.7) | 880 | 1.1 (0.8–1.5) | 0.628 |
Male | 92 (10.2) | 902 | – |
Variable | LBW, n (%) | No LBW, n (%) | OR (95% CI) | p-value |
---|---|---|---|---|
Neonatal asphyxia (5th min Apgar) | ||||
Yes, n (%) | 10 (6.0) | 45 (2.8) | 2.2 (1.1–4.4) | 0.033* |
No, n (%) | 156 (94.0) | 1543 (97.2) | ||
Still birth | ||||
Yes, n (%) | 12 (6.7) | 12 (0.8) | 9.5 (4.2–21.5) | < 0.001* |
No, n (%) | 168 (93.3) | 1594 (99.3) |
Variable | BW1, N = 163 | BW2, N = 1553 | OR (95% CI) | p-value |
---|---|---|---|---|
Neonatal asphyxia (5th min Apgar) | ||||
Yes, n (%) | 6 (11.8) | 45 (88.2) | 2.1 (0.9–5.2) | 0.126 |
No, n (%) | 98 (6.0) | 1543 (94.0) | ||
Still birth | ||||
Yes, n (%) | 5 (29.4) | 12 (70.6) | 6.4 (2.2–18.5) | 0.003* |
No, n (%) | 104 (6.1) | 1594 (93.9) |