TABLE 2.
C-reactive protein (CRP, mg/l) geometric mean, prevalence of elevated CRP (>5 mg/l) and 95% confidence intervals (CI) at baseline (4–19 weeks gestational age, [GA]) and follow-up (28–32 weeks GA) by study group
| Group | n | Baselinea mean (95% CI) | Follow-upb mean (95% CI) | P valuec | |
|---|---|---|---|---|---|
| Mean | Folic acid | 282 | 1.53 (1.33, 1.77) | 3.41 (3.04, 3.81) | <0.001 |
| Iron-folic acid | 278 | 1.60 (1.39, 1.86) | 3.52 (3.15, 3.94) | <0.001 | |
| Multiple micronutrient | 274 | 1.72 (1.49, 1.99) | 3.36 (3.01, 3.77) | <0.001 | |
| Prevalence | Folic acid | 282 | 17.7 (13.3, 22.2) | 36.5 (30.9, 42.2) | <0.001 |
| Iron-folic acid | 278 | 18.7 (14.1, 23.3) | 38.1 (32.4, 43.9) | <0.001 | |
| Multiple micronutrient | 274 | 21.9 (17.0, 26.8) | 33.9 (28.3, 39.6) | <0.001 |
a
At baseline, means or prevalence across groups were not significantly different (p > 0.05, 2-tailed t-test).
b
At follow-up, means or prevalence across groups were not significantly different after adjustment by baseline CRP level, gestational age, and interaction term (P > 0.05, Generalized Linear Model, GLM).
c
Within each row, 2-tailed t-test were used for testing the means and McNemar’s test was used for the prevalence.