Table 4 Results comparing three wealth measurement approaches and mother’s education in terms of value in predicting child HAZ (n = 789)
From: Measuring socioeconomic status in multicountry studies: results from the eight-country MAL-ED study
Wealth method 1: maternal education | Wealth method 2: principal components analysis | Wealth method 3: multidimensional poverty Index | Wealth method 4: asset selection by random forests | Full SES Measure: Water and sanitation, Assets, Maternal education, Income (WAMI) index | |
|---|---|---|---|---|---|
Mean squared error (MSE) from leave-one-out cross validation | 1.39 | 1.37 | 1.39 | 1.37 | 1.37 |
Adjusted R2 | 18.67% | 19.98% | 18.89% | 19.86% | 20.19% |
Effect size (95% CI) Change in HAZ associated with a 25% increase in wealth score | 0.123 (0.029-0.217) p = 0.01 | 0.290 (0.164-0.416) p < 0.001 | 0.149 (0.061-0.237) p = 0.002 | 0.220 (0.121-0.319) p < 0.001 | 0.384 (0.222-0.546) p < 0.001 |
Number of variables | 1 | 16 variables summarized into 1 | 14 variables summarized into 1 | Selected 8 out of 16 variables, and summarized these 8 variables into 1 | Summarized 12 variables into 1 |