Table 3.

Variance Explained in SOSQ Scores by Models Incorporating Patient, Clinic, and Provider Characteristics

Model	Humanistic Scale
	R2	Total R2	Change in R2	P Value for Change in R2
1) Demographics	.019	.019	—	—
2) (1)+socioeconomic status	.011	.031	.012	<.0001
3) (2)+health status	.069	.084	.053	<.0001
4) (3)+utilization	.010	.094	.010	<.0001
5) (4)+GIMC site	.042	.119	.025	<.0001
6) (5)+provider characteristics	.013	.131	.012	0.569
7) (6)+continuity	.085	.186	.055	<.0001
	Organizational Scale
1) Demographics	.019	.019	—	—
2) (1)+socioeconomic status	.004	.025	.006	<.0001
3) (2)+health status	.071	.087	.062	<.0001
4) (3)+utilization	.014	.102	.015	<.0001
5) (4)+GIMC site	.048	.132	.030	<.0001
6) (5)+provider characteristics	.014	.143	.011	<.01
7) (6)+continuity	.077	.193	.050	<.0001

Total R², cumulative R² with addition of each additional block of variables.

GIMC, general internal medicine clinic.