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Association between BMI and wealth quartiles by urban or rural area of residence for women across 54 low- and middle-income countries. Note: The interaction test was significant at P < 0.0001. The patterns were similar when we considered the likelihood of having a BMI (in kg/m2) ≥25 (overweight) as the outcome. Statistical tests were based on a 2-tailed Wald test using chi-square distribution.
