Table 1.
Prevalence of wasting, stunting, and concurrent wasting and stunting, by age group, Niakhar 1983–1984 (N = 12,638 measures)
| Prevalence (%) | Interaction | ||||
|---|---|---|---|---|---|
| Age group (months) | Wasted (WHZ < −2) | Stunted (HAZ < −2) | Wasted and stunted | Value | 95% CI |
| (Wa) | (st) | (wast) | (wast/Wa × st) | Min‐max | |
| 6–11 | 19.9% | 10.6% | 4.5% | 2.16* | 1.62–2.87 |
| 12–23 | 29.5% | 26.0% | 11.0% | 1.44* | 1.25–1.66 |
| 24–35 | 18.2% | 32.4% | 9.1% | 1.54* | 1.29–1.82 |
| 36–47 | 7.2% | 26.3% | 3.6% | 1.91* | 1.49–2.45 |
| 48–59 | 6.9% | 20.7% | 1.7% | 1.21 | 0.86–1.69 |
| Total | 16.3% | 24.2% | 6.2% | 1.57* | 1.43–1.72 |
Note. Interaction terms were statistically significant (RR <> 1), with p values <10−6, except for the 48–59 age group (not significant). p values and confidence intervals calculated with standard formulae for risk ratios. (*) p < 0.05.