Skip to main content

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