Table 3.
Comparison of maternal prenatal clinical characteristics, biological measures and infant outcomes according to latent risk profile groups
| Variable | Low risk (N = 157) | Moderate risk (N = 272) | High risk (N = 86) | P- value |
|---|---|---|---|---|
| Mean (SD) | Mean (SD) | Mean (SD) | ||
| Maternal and infant birth outcomes | ||||
| PTB- Yes (N, %) | 12 (7.74 %) | 32 (12.03 %) | 13 (15.85 %) | 0.14 |
| Type of PTB (n = 57 PTBs) | ||||
| Spontaneous | 11 | 17 | 8 | 0.07 |
| LBW - Yes (N, %) | 7 (4.49) | 17 (6.42) | 9 (10.98) | 0.16 |
| Birth Weight (kg) total sample | 3296.9 (484.9) | 3261.0 (565.0) | 3167.6 (559.1) | 0.21 |
| Prenatal maternal characteristics total sample | ||||
| Start prenatal care (weeks gestation, SD) | 9.67 (4.39) | 10.15 (4.59) | 9.72 (4.43) | 0.50 |
| Gravidity | 2.94 (1.86) | 2.53 (1.51) | 2.65 (1.58) | 0.04 |
| History of PTB-Yes (N, %) | 23 (14.65) | 31 (11.4) | 14 (16.28) | 0.38 |
| Preeclampsia at delivery - Yes (N, %) | 2 (1.3) | 11 (4.18) | 1 (1.23) | 0.18 |
| Gestational diabetes - Yes (N, %) | 12 (7.79) | 18 (6.84) | 9 (11.11) | 0.42 |
| Infections present (N, %) | 38 (26.03) | 96 (36.64) | 40 (49.38) | 0.002 |
| Biological measures at 22–24 weeks gestation | ||||
| Cotinine positive -Yes (N, %) | 3 (1.92) | 9 (3.36) | 4 (4.65) | 0.45 |
| Corticotrophin releasing hormone: pg/ml (Median, IQR) | 19.8 (12.9, 38.1) | 27.4 (14.9, 50.7) | 23.7 (12.0, 41.7) | 0.02a |
aKruskal-Wallis P-Value