Association between handgrip strength and depression among Chinese older adults: a cross-sectional study from the China Health and Retirement Longitudinal Study

Table 2 Odds ratio for HGS and depression

	N	Model 1	Model 2	Model 3
Per SD (10.0 kg) increase		0.64 (0.61, 0.68)	0.67 (0.63, 0.72)	0.74 (0.67, 0.81)
Per 1-unit increase		0.96 (0.95, 0.96)	0.96 (0.96, 0.97)	0.97 (0.96, 0.98)
Quartiles
Q1 (≤ 22 kg)	1,765	Ref	Ref	Ref
Q2 (22, 29 kg]	1,918	0.76 (0.66, 0.86)	0.77 (0.68, 0.89)	0.84 (0.72, 0.98)
Q3 (29, 36 kg]	1,624	0.60 (0.52, 0.69)	0.65 (0.55, 0.75)	0.70 (0.58, 0.84)
Q4 (> 36 kg)	1,729	0.32 (0.27, 0.37)	0.36 (0.30, 0.44)	0.46 (0.35, 0.61)
P _{for trend}		< 0.001	< 0.001	< 0.001

Data are presented as odds ratio (95% confidence interval). SD standard deviation, Q quartiles, Ref. reference
Model 1 unadjusted
Model 2 adjusted for age, gender, and marriage
Model 3 adjusted for gender, age, marriage, body mass index, comorbidities, smoking, drinking, and sleep time

ISSN: 1471-2318