Table 1 Baseline infant and maternal characteristics.
Comparisons within primary cohort | Comparisons between cohorts | |||||
---|---|---|---|---|---|---|
Guinea-Bissau | Uganda | Guinea-Bissau vs Uganda p-value | Primary cohort (< 2000 g at birth) | Secondary cohort (> 2000 g at birth) | Primary vs secondary p-value | |
Cohort size (Number) | 60 | 60 | 120 | 420 | ||
Infant mortality by day 30, n (%) | 10 (16.7) | 6 (10.0) | 0.283 | 16 (13.3) | 2 (0.5) | < 0.001 |
Infant characteristics | ||||||
Male sex, n (%) | 33 (55.0) | 36 (60.0) | 0.580 | 69 (57.5) | 207 (49.3) | 0.112 |
Cesarean delivery, n (%) | 10 (16.7) | 19 (31.7) | 0.055 | 29 (24.2) | 5 (1.2) | < 0.001 |
Age (hours) at birth weight, median (IQR) | 1.58 (1.10–3.50) | 3.55 (3.00–4.38) | < 0.001 | 3.00 (1.47–4.08) | 3.09 (1.61–4.37) | 0.417 |
Weight (g) at birth, mean (SD) | 1727 (166.66) | 1767 (159) | 0.177 | 1747 (163) | 3124 (422) | < 0.001 |
Length (cm) at birth, mean (SD) | 41.82 (1.73) | 40.47 (2.49) | 0.001 | 41.14 (2.24) | 48.55 (2.11) | < 0.001 |
MUAC (cm) at birth, mean (SD) | 7.57 (0.53) | 8.84 (0.96) | < 0.001 | 8.19 (1.00) | 10.63 (0.93) | < 0.001 |
Maternal characteristics | ||||||
Age (years), mean (SD) | 26.65 (6.84) | 25.32 (6.11) | 0.296 | 25.90 (6.44) | 25.99 (5.37) | 0.899 |
Weight (kg), mean (SD)* | 59.2 (11.3) | 58.5 (9.2) | 0.726 | 58.9 (10.2) | 62.4 (12.4) | 0.008 |
Height (cm), mean (SD)* | 158.4 (4.5) | 157.5 (6.9) | 0.453 | 158.0 (5.9) | 158.4 (5.9) | 0.463 |
BMI, mean (SD)* | 23.55 (4.02) | 23.53 (3.09) | 0.972 | 23.54 (3.54) | 24.66 (3.98) | 0.010 |
BMI < 21, n (%)* | 14 (29.8) | 12 (22.6) | 0.416 | 26 (26.0) | 71 (18.1) | 0.075 |
Married, n (%) | 29 (61.7) | 51 (86.4) | 0.003 | 80 (75.5) | 246 (60.6) | 0.005 |
Education (years), mean (SD) | 7.48 (4.37) | 10.44 (2.78) | < 0.001 | 9.14 (3.84) | 7.61 (4.39) | 0.001 |