| | Total N | Slim n | WHZ−2 (n = 2 022) | MUAC125 (n = 983) |
---|
Covariates | | | | Sensitivity | 95 % CI | Specificity | 95 % CI | Sensitivity | 95 % CI | Specificity | 95 % CI |
---|
Long legs | Yes | 4,309 | 847 | 84.2 | 75.9 | 92.5 | 82.9 | 73.7 | 92.1 | 32.2 | 26.4 | 38.0 | 96.8 | 90.2 | 100 |
No | 6,079 | 536 | 68.3 | 63.9 | 72.8 | 95.2 | 90.2 | 100 | 32.0 | 28.0 | 36.1 | 97.5 | 92.9 | 100 |
Sex | Male | 5,020 | 720 | 73.4 | 67.4 | 79.3 | 93.6 | 86.9 | 100 | 25.9 | 20.9 | 30.9 | 99.2 | 93.7 | 100 |
Female | 5,368 | 663 | 68.8 | 62.7 | 75.0 | 93.4 | 86.6 | 100 | 33.6 | 28.7 | 38.6 | 100 | 94.8 | 100 |
Age < 24 months | Yes | 3,754 | 664 | 75.0 | 69.9 | 80.2 | 95.0 | 89.2 | 100 | 57.4 | 51.1 | 63.7 | 87.7 | 80.6 | 94.8 |
No | 6,634 | 719 | 65.8 | 59.1 | 72.5 | 94.1 | 86.9 | 100 | 18.1 | 14.0 | 22.1 | 97.6 | 93.1 | 100 |
Total | | 10,388 | 1,383 | 70.6 | 65.4 | 75.9 | 93.9 | 88.3 | 99.6 | 31.0 | 26.8 | 35.2 | 98.4 | 93.9 | 100 |
- Slimness was defined as a WAZ<−2 in children with no linear growth retardation, i.e. with HAZ≥−2. Adjusted sensitivity and specificity are derived from multivariate multi-level linear regression models, with “survey” as random effect. The regression coefficients represent the absolute % in the dependent variable (WHZ-2 or MUAC125) between the categories of the independent variable (slimness). Sensitivity is computed by summing the regression coefficient with the constant of the regression model. Specificity is computed by using the reciprocal of the dependent and independent variables in the model. All models were adjusted for all covariates. Interactions between covariates and slimness were tested all together through a chunk test. The chunk test was highly significant for both indicators, and all covariates had a modifying effect on the sensitivity and specificity