Variable | Late preterm (n = 70) | Full term (n = 180) | p | Odds ratio for preterm (95% CI) |
---|---|---|---|---|
Gestational age (weeks) | ||||
 Median (IQR) | 35.9 (35.0–36.4) | 39.0 (38.3–39.9) | < 0.001 (Z)* |  |
Sex | ||||
 Male | 31 (44.3%) | 80 (44.4%) | 0.982 (χ2) |  |
 Female | 39 (55.7%) | 100 (55.6%) |  | |
Birth weight | ||||
 Mean ± SD | 2310.7 ± 361.9 | 3147.4 ± 608.3 | < 0.001 (t)* |  |
 SGA | 8 (11.4%) | 4 (2.2%) | 0.002 (χ2)* |  |
 LGA | 1 (1.4%) | 13 (7.2%) |  | |
Length | ||||
 Mean ± SD | 45.6 ± 5.6 | 48.3 ± 1.8 | < 0.001 (t)* |  |
HC | ||||
 Mean ± SD | 31.8 ± 1.4 | 33.8 ± 1.4 | < 0.001 (t)* |  |
 Microcephaly | 3 (4.3%) | 1 (0.6%) | 0.038 (χ2)* |  |
 Macrocephaly | 1 (1.4%) | 2 (1.1%) | 0.843 (χ2) |  |
Age at delivery (years) | ||||
< 17 | 4 (5.7%) | 1 (0.6%) | 0.001 (χ2)* |  |
 17–34 | 51 (72.9%) | 164 (91.1%) |  | |
≥ 35 | 15 (21.4%) | 15 (8.3%) |  | |
Parity | ||||
 Primigravida | 17 (24.3%) | 57 (31.7%) | 0.283 (χ2) |  |
 Multigravida | 53 (75.7%) | 123 (68.3%) |  | |
Previous preterm delivery | ||||
 Yes | 10 (14.3%) | 11 (6.1%) | 0.036 (χ2)* |  |
Abortion | ||||
 No | 46 (65.7%) | 119 (66.1%) | 0.025 (χ2)* |  |
 One time | 18 (25.7%) | 58 (32.2%) |  | |
 Two times | 6 (8.6%) | 3 (1.7%) |  | |
Antenatal care visits at last pregnancy | ||||
 Yes | 50 (71.4%) | 138 (76.6%) | 0.578 (χ2) |  |
 Mean ± SD | 3.7 ± 1.9 | 3.9 ± 2.1 | 0.512 (t) |  |
Medical diseases | ||||
 DM | 6 (8.6%) | 18 (10.0%) | 0.736 (χ2) | 0.84 (0.32–2.22) |
 Hypertension | 19 (27.1%) | 26 (14.4%) | 0.012 (χ2)* | 2.21 (1.13–4.37) |
 UTI | 19 (27.1%) | 38 (21.1%) | 0.309 (χ2) | 1.39 (0.74–2.63) |
 Fever/rash | 6 (8.6%) | 7 (3.9%) | 0.133 (χ2) | 2.32 (0.75–7.16) |
 Cardiac | 1 (1.4%) | 1 (0.6%) | 0.123 (χ2) | 2.59 (0.16–42.05) |
 Respiratory | 3 (4.3%) | 3 (1.7%) | 0.230 (χ2) | 2.64 (0.52–13.41) |