Table 2.
Responsiveness in anthropometric indicators between dry and rainy seasons (univariate analysis) among children aged 6–23 months, Niakhar, Senegal 1983–1984
| Overall value | Change in rainy season | Change in dry season | Contrast, rainy – | ||||
|---|---|---|---|---|---|---|---|
| Mean | sd | Mean | Responsiveness | Mean | Responsiveness | dry season | |
| Indicator | (μ) | (σ) | (Δ) | (Δ/σ) | (Δ) | (Δ/σ) | (κ) |
| Arm circumference based | |||||||
| MUAC (cm) | 13·751 | 1·267 | −0·285 | −0·225 | 0·522 | 0·412 | −0·637 |
| Muscle circumference (cm) | 11·242 | 1·012 | −0·191 | −0·188 | 0·362 | 0·357 | −0·546 |
| Weight and height based | |||||||
| Weight-for-height Z-score | −1·134 | 1·163 | −0·401 | −0·345 | 0·211 | 0·181 | −0·526 |
| BMI (kg/m2) | 15·676 | 1·493 | −0·549 | −0·368 | 0·179 | 0·120 | −0·488 |
| Weight based | |||||||
| Weight-for-age Z-score | −1·780 | 1·218 | −0·461 | −0·379 | 0·070 | 0·057 | −0·436 |
| Weight (kg) | 8·521 | 1·532 | 0·712 | 0·465 | 1·129 | 0·737 | −0·272 |
| Fat based | |||||||
| Triceps skinfold (mm) | 7·982 | 1·813 | −0·295 | −0·163 | 0·506 | 0·279 | −0·442 |
| Subscapular skinfold (mm) | 6·499 | 1·640 | −0·398 | −0·243 | −0·273 | −0·166 | −0·076 |
| Based on linear growth | |||||||
| Height (cm) | 73·512 | 5·576 | 4·262 | 0·764 | 4·415 | 0·792 | −0·027 |
| Head circumference (cm) | 45·246 | 1·818 | 0·983 | 0·541 | 0·973 | 0·535 | +0·005 |
MUAC, mid-upper arm circumference.
Responsiveness is the change (Δ) divided the standard deviation of the measure (σ). Contrast is the differences between responsiveness in rainy and dry seasons.
Corresponding values in 2006 WHO growth standards: responsiveness in rainy season = −0·23, responsiveness in dry season = +0·30 and contrast = 0·52 for weight-for-height Z-score; responsiveness in rainy season = −0·34, responsiveness in dry season = +0·12 and contrast = 0·46 for weight-for-age Z-score.