Table 4.

Multiple linear regression analysis of predictors of hand power and DASH score in elderly

Variables	Grip power			Pinch power			DASH score
	b*	p value	95% CI	b*	p value	95% CI	b*	p value	95% CI
Age	−0.489	p < 0.001	−0.592 to −0.387	−0.103	p < 0.001	−0.128 to −0.078	0.816	p < 0.001	0.560–1.072
Sex	12.079	p < 0.001	10.722–13.435	3.154	p < 0.001	2.826–3.481	−12.221	p < 0.001	−15.595 to −8.847
Sum of Kellgren-Lawrence grade (dominant hand)
Thumb	−1.054	p = 0.045	−1.829 to −0.278	−0.280	p = 0.032	−0.492 to −0.078	1.530	p = 0.045	0.032–3.028
Second finger	−0.870	p = 0.061	−1.780 to 0.039	−0.256	p = 0.025	−0.480 to −0.032	0.626	p = 0.048	−1.037 to 2.289
Third finger	−2.170	p = 0.024	−4.058 to −0.282	−0.356	p = 0.134	−0.822 to 0.110	3.973	p = 0.034	0.299–7.648
Fourth finger	−0.030	p = 0.950	−0.969 to 0.909	0.055	p = 0.639	−0.177 to 0.287	−0.115	p = 0.901	−1.940 to 1.709
Fifth finger	−0.093	p = 0.838	−0.988 to 0.801	−0.028	p = 0.801	−0.249 to 0.193	−0.271	p = 0.759	−2.009 to 1.466

* b = unstandardized coefficient beta.