Table 3

Predictors of function in hand related activities (AUSCAN), in occupational performance (COPM performance), and in satisfaction with occupational performance (COPM satisfaction) in women with hand osteoarthritis (hierarchical regression analysis)

	AUSCAN function (0–4; 0 = no problem)				COPM performance (1–10; 1 = not able to perform)				COPM satisfaction (1–10; 1 = not satisfied at all)
Variable	Unstandardised β (95% CI)	p Value	R² change (p value)	Adjusted R²	Unstandardised β (95% CI)	p Value	R² change (p value)	Adjusted R²	Unstandardised β (95% CI)	p Value	R² change (p value)	Adjusted R²
Associations between each of the dependent variables and the independent variables entered in blocks according to the ICF dimensions.
AUSCAN, Australian/Canadian Osteoarthritis Hand Index; COPM, Canadian Occupational Performance Measure; ICF, International Classification of Functioning, Disability and Health.
Block 1: personal			0.22 (0.002)	0.18			0.33 (<0.001)	0.29			0.38 (<0.001)	0.34
Age (years)	−0.006 (−0.022 to 0.035)	0.66			−0.009 (−0.098 to 0.079)	0.83			−0.013 (−0.106 to 0.080)	0.78
Disease duration (years)	−0.003 (−0.027 to 0.020)	0.76			−0.056 (−0.129 to 0.015)	0.12			−0.089 (−0.164 to −0.014)	0.021
Comorbidity (no = 0, yes = 1)	0.093 (−0.196 to 0.383)	0.52			−0.648 (−1.549 to 0.253)	0.16			−1.65 (−2.106 to −0.223)	0.016
Self efficacy function (10–100; 100 = high self efficacy)	−0.003 (−0.012 to 0.007)	0.56			0.042 (0.014 to 0.071)	0.004			0.033 (0.003 to 0.063)	0.030

Block 2: impairment			0.37 (<0.001)	0.55 (<0.001)			0.06 (0.139)	0.32 (<0.001)			0.07 (0.059)	0.39 (<0.001)
Mobility deficit digits I–V (mm)	0.003 (0.000 to 0.005)	0.070			−0.006 (−0.014 to 0.003)	0.19			−0.004 (−0.013 to 0.004)	0.318
Hand power in pinch grip (N)	−0.025 (−0.041 to −0.009)	0.002			0.044 (−0.004 to 0.092)	0.070			0.056 (0.006 to 0.106)	0.028
Pain during resisted motion (pinch grip) (0–100 mm; 0 = no pain)	0.017 (0.010 to 0.024)	0.001			0.0001 (−0.023 to 0.023)	0.99			−0.004 (−0.029 to 0.019)	0.682