TABLE 1.
Original trial characteristics for recruited individuals compared with subjects lost to follow-up in the current study
| Loss to follow-up1 |
Recruited |
||||
| n | Mean ± SD | n | Mean ± SD | 2 | |
| Age at start of follow-up (y)3 | 544 | 19.2 ± 1.5 | 1459 | 19.0 ± 1.5 | <0.0014 |
| F (%) | 544 | 46.1 ± 49.9 | 1459 | 49.9 ± 50.0 | 0.142 |
| Maternal weight (kg) | 544 | 53.6 ± 7.4 | 1456 | 52.9 ± 6.9 | 0.138 |
| Maternal height (m) | 412 | 159.3 ± 6.2 | 1172 | 159.0 ± 6.1 | 0.441 |
| Maternal parity | 504 | 4.3 ± 2.7 | 1390 | 4.4 ± 2.5 | 0.559 |
| Gestational age (Parkin score) | 457 | 8.9 ± 1.5 | 1279 | 8.8 ± 1.6 | 0.229 |
| Birth weight (g) | 544 | 2910.6 ± 433.6 | 1459 | 2902.3 ± 427.4 | 0.568 |
| Birth length (cm) | 462 | 49.4 ± 2.2 | 1292 | 49.3 ± 2.3 | 0.552 |
| Month of birth5 | 544 | 6.8 ± 3.6 | 1459 | 6.7 ± 3.6 | 0.583 |
1
Data were missing on 44 children from the 2047 children born during the original trial.
2
Calculated by using 2-tailed t tests adjusted for clustering at the village level.
3
Start date of follow-up was 4 February 2011.
4
Significant.
5
Represented by numbers 1–12 where 1 indicates January, 2 indicates February, etc, and ends with 12, which indicates December.