Table 2

Correlation of the relative index of inequality (RII) with GDP and Gini-index, and results of cross-level interaction analysis in multilevel models

Country-level indicatorRIISpearman’s correlationCross-level interaction
Socioeconomic indicatorFunctional outcomeCoeff.P valueRandom intercept modelRandom slope model
Coeff.P valueCoeff.Pvalue
Gini-indexEducationCognitive function−0.310.065−0.92<0.001−0.980.006
Physical function−0.62<0.001−0.87<0.001−0.950.004
IncomeCognitive function−0.230.202−0.27<0.001−0.310.057
Physical function−0.410.020−0.40<0.001−0.380.097
GDPEducationCognitive function0.120.4632.9×10-6<0.0012.9×10-60.158
Physical function0.67<0.0013.3×10-6<0.0014.3×10-60.031
IncomeCognitive function0.230.2102.2×10-70.4631.5×10-60.100
Physical function0.490.0051.7×10-6<0.0012.5×10-60.044