Table 2.
Anthropometry quality indicators, pre- and post-intervention, N = 1204
| Pre-intervention | Post-intervention | P-value | |||
|---|---|---|---|---|---|
| n | % or mean± SD | n | % or mean± SD | ||
| Height measured | |||||
| Yes | 497 | 78.6 | 707 | 75.8 | 0.19 |
| Measurement method | |||||
| Wooden Height board (Shorr board) | 0 | 0.0 | 246 | 34.8 | |
| Tape | 344 | 69.2 | 297 | 42.0 | <0.01 |
| Wingspan | 13 | 2.6 | 25 | 3.5 | |
| Other or missing | 140 | 28.2 | 139 | 19.7 | |
| Plausibility | |||||
| WAZ flag | 1 | 0.2 | 1 | 0.2 | 0.78 |
| HAZ flag | 16 | 3.2 | 26 | 3.7 | 0.67 |
| WHZ flag | 12 | 2.7 | 4 | 0.6 | <0.01 |
| Height out of range | 8 | 1.8 | 23 | 3.5 | 0.09 |
| Mean anthropometric indices | |||||
| HAZ, all ages | 481 | -0.2 ± 1.9 | 681 | -0.5 ± 1.9 | 0.97 |
| HAZ for age < 2y | 331 | -0.3 ± 2.1 | 458 | -0.6 ± 2.0 | 0.70 |
| HAZ for age ≥ 2y | 150 | -0.1 ± 1.6 | 223 | -0.4 ± 1.7 | 0.45 |
| HAZ for children measured with board | - | - | 238 | -0.55 ± 1.8 | - |
| WAZ | 451 | -0.1 ± 1.5 | 665 | -0.4 ± 1.6 | 0.17 |
| WHZ | 432 | 0.0 ± 1.60 | 639 | 0.0 ± 1.5 | 0.39 |
| Digit preference | |||||
| Measurements that would require reclassification | 66 | 13.4 | 87 | 12.3 | 0.62 |
2-tailed t test and Chi-square test found no significant differences between groups. Extreme z-scores were flagged if implausible as determined by 2006 WHO Growth Standards [6]
SD standard deviation, WAZ Weight-for-age z-score, HAZ height-for-age z-score, WHZ weight-for height z-score