Health service utilization patterns of primary care patients with osteoarthritis

Table 3 Factors associated with GP contacts assessed by stepwise regression

Dependent: GP contacts Unadjusted R² = 0.359 Adjusted R² = 0.327 F = 15.346; p < 0.0001	Beta	SE	Change in R²	p
(constant)	1.516	1.216		0.213
Marital status (living alone)	1.439	0.495	0.170	0.001
Number of prescribed drugs	0.641	0.278	0.096	0.001
Symptom*	0.605	0.244	0.075	0.014
PHQ-9 score	0.352	0.085	0.018	0.000

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