Table 2.
Distribution of key exposures in participants who completed clinic questionnaires at follow-up in Hyderabad nutrition trial. Values are numbers (percentages) unless stated otherwise
| Characteristic | Intervention area (n=633) | Control area (n=498) | P value* |
|---|---|---|---|
| Mean (SD) age (years) | 15.8 (0.9) | 15.9 (0.9) | 0.02 |
| Male | 333 (53) | 274 (55) | 0.4 |
| Pubertal stage†: | (n=628) | (n=496) | 0.4 |
| Early puberty | 88 (14) | 83 (17) | |
| Middle puberty | 209 (33) | 156 (31) | |
| Late puberty | 184 (29) | 132 (27) | |
| Post-puberty | 147 (23) | 125 (25) | |
| Standard of living index: | (n=630) | 0.2 | |
| High (25-67) | 228 (36) | 158 (32) | |
| Medium (15-24) | 291 (46) | 239 (48) | |
| Low (0-14) | 111 (18) | 101 (20) | |
| Own occupation‡: | (n=497) | 0.002 | |
| Student/vocational training | 534 (84) | 391 (79) | |
| Employed | 66 (10) | 53 (11) | |
| Unemployed/housework | 33 (5) | 53 (11) | |
| Literate mother§ | 58 (9) | 57 (11) | 0.2 |
| Lifestyle: | (n=497) | ||
| Consumed tobacco (ever) | 0 | 2 (0) | 0.2 |
| Consumed alcohol (ever) | 0 | 2 (0) | 0.2 |
*P values are based on unpaired t tests or χ2 tests for heterogeneity with appropriate degrees of freedom.
†Pubertal stage for boys: intervention area—early 27%, middle 56%, late 18%, post-puberty 0%; control area—early 30%, middle 50%, late 19%, post-puberty 0%. Pubertal stage for girls: intervention area—early 0%, middle 8%, late 42%, post-puberty 50%; control area—early 0%, middle 9%, late 35%, post-puberty 56%.
‡Vocational training, n=15; unemployed, n=36.
§Literate/primary school, n=45; middle school, n=43; high school, n=16; intermediate level, n=9; graduate, n=2.