Table 2.
Prevalence of classified levels of Z scores (number of percentage (%) values)
| Birth N (%) | Two Months N (%) | Four Months N (%) | Six Months N (%) | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Characteristics | N | % | N | % | N | % | N | % | |
| WHZ | Wasted | 203 | 8·2 | 102 | 4·1 | 74 | 3 | 62 | 2·5 |
| Normal | 2238 | 90·1 | 2295 | 92·4 | 2320 | 93·5 | 2320 | 93·5 | |
| Overweight | 40 | 1·6 | 84 | 3·4 | 87 | 3·5 | 99 | 4 | |
| WAZ | Underweight | 67 | 2·7 | 72 | 2·9 | 44 | 1·8 | 40 | 1·6 |
| Normal | 2374 | 95·7 | 2335 | 94·1 | 2355 | 94·9 | 2342 | 94·4 | |
| Other | 40 | 1·6 | 74 | 3 | 82 | 3·3 | 99 | 4 | |
| HAZ | Stunted | 97 | 3·9 | 77 | 3·1 | 30 | 1·2 | 27 | 1·1 |
| Normal | 2377 | 95·8 | 2384 | 96·1 | 2436 | 98·1 | 2432 | 98 | |
| Other | 7 | 0·3 | 20 | 0·8 | 15 | 0·6 | 22 | 0·9 | |
Z scores of HAZ, WHZ and WAZ blow −2 considered stunted, wasted and underweight, respectively; WHZ of −2 to 2 considered normal and >2 classified as overweight; HAZ of −1 to 2 and WAZ of −1 to 3 considered normal. HAZ, height-for-age Z scores; WAZ, weight-for-age Z scores; WHZ, weight-for-height Z scores.