Table 1.
Baseline characteristics of 4345 infants enrolled in vitamin A trial, November 2002-November 2004, Guinea-Bissau. Values are numbers (percentages) unless stated otherwise
| Characteristic | Vitamin A (n=2145) | Placebo (n=2200) |
|---|---|---|
| Boys* | 1075 (50) | 1125 (51) |
| Suburb: | ||
| Bandim | 1076 (50) | 1113 (51) |
| Mindara/Belem/Cuntum | 1030 (48) | 1056 (48) |
| Unknown | 39 (2) | 31 (1) |
| Maternal schooling: | ||
| No | 624 (29) | 638 (29) |
| Yes | 1290 (60) | 1361 (62) |
| Unknown | 231 (11) | 201 (9) |
| Maternal ethnicity: | ||
| Pepel | 605 (28) | 606 (28) |
| Other | 1458 (68) | 1536 (70) |
| Unknown | 82 (4) | 58 (3) |
| Electricity: | ||
| No electricity | 1379 (64) | 1416 (64) |
| Electricity available | 686 (32) | 726 (33) |
| Unknown | 80 (4) | 58 (3) |
| Enrolment in rainy season* | 1047 (49) | 1107 (50) |
| Enrolment at national hospital* | 1220 (57) | 1266 (58) |
| Exposed to tuberculosis in home: | ||
| Yes | 52 (2) | 42 (2) |
| No | 2054 (96) | 2127 (97) |
| Unknown | 39 (2) | 31 (1) |
| Median (10-90% range) age at enrolment (days) | 1 (0-23) | 1 (0-21) |
| Mean (SD) maternal MUAC (mm) | 255 (31) | 254 (30) |
| Mean (SD) weight (kg) | 3.33 (0.70) | 3.32 (0.67) |
| Mean (SD) length (cm) | 50 (3) | 50 (3) |
| Mean (SD) MUAC (mm) | 101 (11) | 100 (11) |
| Mean (SD) head circumference (cm) | 35 (2) | 35 (2) |
| Mean (SD) abdominal circumference (cm) | 31 (3) | 31 (3) |
| Mean (SD) ponderal index (kg/m3) | 26 (4) | 26 (3) |
MUAC=Mid upper arm circumference.
*Variables with two levels (such as included at national hospital/elsewhere) are presented by one of the levels.