Table 6.

Summary of the analyses for the dependent variable Self-reported health (PROM), multilevel linear regression

Potential case-mix variable	Fixed effect significant (y/n)	Slope effect GP level important* (y/n)	Slope effect country level important (y/n)	Case-mix control (y/n)
Longstanding disease	Yes Longstanding disease → worse self-reported health	No	No	Yes
Patient’s age	Yes Older patients → worse self-reported health	No	No	Yes
Patient’s sex	Yes Women → worse self-reported health	No	No	Yes
Education	Yes Higher educated → better self-reported health	No	No	Yes
Income	Yes Higher income → better self-reported health	No	No	Yes
Migrant status	Yes First generation migrant → worse self-reported health	No	No	Yes
Place of living	Yes In mixed urban–rural and rural areas → worse self-reported health	No	No	Yes

^*Important means that the difference in variance between categories is more that 0.25*variance in the model with fixed effect and random intercept