Table 1.
Baseline characteristics of the participants
| Characteristic | Vitamin C (N = 466) | Placebo (N = 466) | P values |
|---|---|---|---|
| n (%) | n (%) | ||
| Age group (years) | 0.77 | ||
| ≤19 | 91 (19.5) | 98 (21.0) | |
| 20-29 | 247 (53.0) | 253 (54.3) | |
| 30-34 | 79 (17.0) | 69 (14.8) | |
| ≥35 | 49 (10.5) | 46 (9.9) | |
| Marital status | 0.12 | ||
| Married | 403 (86.5) | 386 (82.8) | |
| Single | 63 (13.5) | 80 (17.2) | |
| Educational level | 0.41 | ||
| Primary or less | 186 (39.9) | 174 (37.3) | |
| Secondary or above | 280 (60.1) | 292 (62.7) | |
| Parity | 0.86 | ||
| Primigravidae | 135 (29.0) | 129 (27.7) | |
| Gravida 2-3 | 187 (40.1) | 186 (39.9) | |
| Gravida ≥4 | 144 (30.9) | 151 (32.4) | |
| Alcohol consumption | 0.8 | ||
| Yes | 41 (8.8) | 39 (8.4) | |
| HIV status | 0.42 | ||
| Positive | 39 (8.4) | 46 (9.9) | |
| Negative | 427 (91.6) | 420 (90.1) | |
| Smoking | 0.99 | ||
| Yes | 1 (0.2) | 1 (0.2) | |
| *Booking gestational age | 19.3 (SD 3.8) | 19.7 (SD 4.0) | |
| *Booking systolic BP (mmHg) | 113.9 (SD 12.8) | 114.9 (SD 14.1) | |
| *Booking diastolic BP (mmHg) | 67.5 (11.4) | 68.1 (11.2) | |
| Hypertension in family | 0.31 | ||
| Yes | 64 (13.7) | 75 (16.1) |
*These are presented as means (standard deviations). BP: Blood pressure, HIV: Human Immunodeficiency Virus. For binary variable only yes category was reported.