Robustness analysis of the results using other measures of traits.

Note: same as Table 3.aF-test: female & interaction term (p value in parentheses).bF-test of the two traits and the two interaction terms.iBed-ridden days, days ill, number of ailments. Chronbach's alpha = 0.742; Eigenvalues: factor 1 = 1.994 (66% of total variance), factor 2 = 0.718.iiMid-arm circumference, height, fat-free mass. Chronbach's alpha = 0.944; Eigenvalues: factor 1 = 2.675 (89% of total variance), factor 2 = 0.269.