Association between severity score and linear growth
| 9-Month change in height (cm) | 9-Month change in HAZ (z-score) | |
|---|---|---|
| Low-severity episodes (incidence) | −0.014 (−0.042, 0.015) | −0.001 (−0.012, 0.009) |
| (p=0.348) | (p=0.755) | |
| Medium-severity episodes | −0.035 (−0.056, −0.014) | −0.009 (−0.016, −0.001) |
| (p=0.001) | (p=0.025) | |
| High-severity episodes | −0.011 (−0.067, 0.044) | −0.008 (−0.028, 0.012) |
| (p=0.690) | (p=0.439) | |
| Episodes of dysentery | −0.112 (−0.189, −0.036) | −0.033 (−0.061, −0.006) |
| (p=0.004) | (p=0.018) |
The association between incident episodes of diarrhoeal classified as low (score 0), medium severity (score 1–6) and high severity (score ≥7) and the change in height and HAZ over 9-month intervals is shown below. Age (fractional polynomials used to adjust for age in the height model are term 1=age−2 − 0.56 and term 3=ln(age)×age3 − 2.41), season (sine and cosine terms), stunting and WHZ (categorised as >0, 0 to −1 and <−1) were also adjusted for (β coefficients not shown). In the HAZ model, fractional polynomials for age are age−2 − 1.80 and ln(age)×age2 − 0.53.
WHZ, weight for height z-score.