Baseline Characteristics of the Children in the Trial by Allocation
| . | Placebo (n = 1522) . | Vitamin D (n = 1524) . |
|---|---|---|
| Sex | ||
| Boys | 780 (51.3) | 811 (53.2) |
| Girls | 742 (48.8) | 713 (46.8) |
| Child age at recruitment | 6.2 ± 3.1a | 6.2 ± 3.2 |
| <2 mo | 111 (7.3) | 132 (8.7) |
| 2–5 mo | 537 (35.3) | 510 (33.5) |
| 6–12 mo | 874 (57.4) | 882 (57.9) |
| Breastfeeding at recruitment | ||
| Yes | 865 (56.8) | 900 (59.1) |
| No | 617 (40.5) | 584 (38.3) |
| Not known | 40 (2.6) | 40 (2.6) |
| Socioeconomic status, fifths | ||
| Poorest | 159 (10.4) | 164 (10.8) |
| Very poor | 266 (17.5) | 262 (17.2) |
| Poor | 247 (16.2) | 226 (14.8) |
| Less poor | 227 (14.9) | 226 (14.8) |
| Least poor | 235 (15.4) | 254 (16.7) |
| Not known | 388 (25.5) | 392 (25.7) |
| No. indoor smokers in household | ||
| None | 887 (58.3) | 893 (58.6) |
| ≥1 | 476 (31.3) | 459 (30.1) |
| Not known | 159 (10.4) | 172 (11.3) |
| Length-for-age z score | −0.6 ± 1.4 | −0.6 ± 1.4 |
| ≥−1 | 918 (60.3) | 944 (61.9) |
| −2 to > −1 | 319 (21.0) | 301 (19.8) |
| <−2 | 212 (13.9) | 200 (13.1) |
| Not known | 73 (4.8) | 79 (5.2) |
| Wt-for-age z score | −0.6 (1.2) | −0.7 ± 1.2 |
| ≥−1 | 969 (63.7) | 945 (62.0) |
| −2 to >−1 | 368 (24.2) | 372 (24.4) |
| <−2 | 176 (11.6) | 185 (12.1) |
| Not known | 9 (0.6) | 22 (1.4) |
| Height-for-wt z score | −0.3 ± 1.2 | −0.3 ± 1.2 |
| ≥−1 | 1059 (69.6) | 1069 (70.1) |
| −2 to >−1 | 289 (19.0) | 251 (16.5) |
| <−2 | 98 (6.4) | 118 (7.7) |
| Not known | 76 (5.0) | 86 (5.6) |
| Daily dietary intakeb | ||
| Total energy intake, kcal | 704.3 ± 326.8 | 713.4 ± 336.3 |
| Dietary protein intake, g | 21.2 ± 10.1 | 21.5 ± 10.4 |
| Dietary calcium intake, mg | 370.3 ± 272.3 | 374.3 ± 279.0 |
| . | Placebo (n = 1522) . | Vitamin D (n = 1524) . |
|---|---|---|
| Sex | ||
| Boys | 780 (51.3) | 811 (53.2) |
| Girls | 742 (48.8) | 713 (46.8) |
| Child age at recruitment | 6.2 ± 3.1a | 6.2 ± 3.2 |
| <2 mo | 111 (7.3) | 132 (8.7) |
| 2–5 mo | 537 (35.3) | 510 (33.5) |
| 6–12 mo | 874 (57.4) | 882 (57.9) |
| Breastfeeding at recruitment | ||
| Yes | 865 (56.8) | 900 (59.1) |
| No | 617 (40.5) | 584 (38.3) |
| Not known | 40 (2.6) | 40 (2.6) |
| Socioeconomic status, fifths | ||
| Poorest | 159 (10.4) | 164 (10.8) |
| Very poor | 266 (17.5) | 262 (17.2) |
| Poor | 247 (16.2) | 226 (14.8) |
| Less poor | 227 (14.9) | 226 (14.8) |
| Least poor | 235 (15.4) | 254 (16.7) |
| Not known | 388 (25.5) | 392 (25.7) |
| No. indoor smokers in household | ||
| None | 887 (58.3) | 893 (58.6) |
| ≥1 | 476 (31.3) | 459 (30.1) |
| Not known | 159 (10.4) | 172 (11.3) |
| Length-for-age z score | −0.6 ± 1.4 | −0.6 ± 1.4 |
| ≥−1 | 918 (60.3) | 944 (61.9) |
| −2 to > −1 | 319 (21.0) | 301 (19.8) |
| <−2 | 212 (13.9) | 200 (13.1) |
| Not known | 73 (4.8) | 79 (5.2) |
| Wt-for-age z score | −0.6 (1.2) | −0.7 ± 1.2 |
| ≥−1 | 969 (63.7) | 945 (62.0) |
| −2 to >−1 | 368 (24.2) | 372 (24.4) |
| <−2 | 176 (11.6) | 185 (12.1) |
| Not known | 9 (0.6) | 22 (1.4) |
| Height-for-wt z score | −0.3 ± 1.2 | −0.3 ± 1.2 |
| ≥−1 | 1059 (69.6) | 1069 (70.1) |
| −2 to >−1 | 289 (19.0) | 251 (16.5) |
| <−2 | 98 (6.4) | 118 (7.7) |
| Not known | 76 (5.0) | 86 (5.6) |
| Daily dietary intakeb | ||
| Total energy intake, kcal | 704.3 ± 326.8 | 713.4 ± 336.3 |
| Dietary protein intake, g | 21.2 ± 10.1 | 21.5 ± 10.4 |
| Dietary calcium intake, mg | 370.3 ± 272.3 | 374.3 ± 279.0 |
All values are n (%), except when noted otherwise.
Values are mean ± SD, all such values.
Dietary intake values were available for 1197 in the placebo and 1186 in the vitamin D group.