Table 2 Multiple linear regression of factors associated with disability, full and stratified models, adults aged 50-79 years, China, SAGE Wave 1
Full model | Model stratified by gender | Model stratified by residence | |||
|---|---|---|---|---|---|
Total (N = 11,694) | Men (N = 5488) | Women (N = 6206) | Urban (N = 5721) | Rural (N = 5973) | |
Coefficient (95% CI) | Coefficient (95% CI) | Coefficient (95% CI) | Coefficient (95% CI) | Coefficient (95% CI) | |
Intercept | −9.13 (−12.9,5.34) | −9.98 (−14.5,-5.42) | −6.04 (−10.1,-1.95) | −8.24 (−12.8,-3.64) | −12.3 (−19.2,-5.42) |
Age | 0.38 (0.33,0.43) | 0.38 (0.31,0.45) | 0.38 (0.34,0.43) | 0.38 (0.30,0.45) | 0.39 (0.33,0.46) |
Gender (Reference men) | |||||
Women | 2.35 (1.73,2.97) | NA | NA | 1.52 (0.64,2.40) | 3.12 (2.19,4.04) |
Marital status (Reference married/cohabiting) | |||||
Separated/divorced/widowed/single | 0.97 (−0.13,2.06) | 2.50 (0.54,4.47) | 0.39 (−0.49,1.27) | 0.91 (0.02,1.80) | 1.00 (−1.07,3.07) |
Education (Reference college/university) | |||||
Completed secondary | 2.71 (0.87,4.55) | 2.68 (0.16,5.21) | 3.06 (1.09,5.03) | 2.20 (0.40,4.01) | 10.3 (5.60,15.0) |
Completed primary | 4.22 (1.91,6.52) | 3.74 (0.85,6.62) | 5.27 (2.91,7.64) | 4.91 (2.22,7.60) | 10.2 (5.74,14.7) |
No primary | 4.87 (2.71,7.04) | 4.65 (1.87,7.43) | 5.49 (3.26,7.72) | 5.09 (2.64,7.54) | 11.4 (6.77,16.0) |
Employment (Reference currently working) | |||||
Not currently working | 3.28 (2.41,4.14) | 4.26 (2.89,5.64) | 2.07 (0.97,3.16) | 3.26 (1.81,4.71) | 3.47 (2.19,4.74) |
Never worked | 3.40 (1.95,4.84) | 3.74 (1.80,5.68) | 2.75 (1.23,4.27) | 3.51 (0.45,6.56) | 3.41 (1.73,5.10) |
Household wealth (Reference wealthiest) | |||||
Second wealthiest quintile | 4.64 (2.55,6.74) | 5.23 (2.95,7.50) | 4.06 (1.67,6.45) | 3.54 (0.82,6.26) | 6.34 (3.61,9.08) |
Mid quintile | 5.98 (3.86,8.10) | 6.88 (4.69,9.08) | 5.06 (2.66,7.45) | 5.20 (2.39,8.01) | 7.15 (4.38,9.92) |
Second poorest quintile | 6.27 (4.17,8.37) | 6.99 (4.92,9.06) | 5.51 (3.02,8.00) | 7.92 (5.06,10.8) | 6.28 (3.55,9.02) |
Poorest quintile | 7.89 (5.37,10.4) | 8.98 (6.40,11.6) | 6.76 (4.01,9.51) | 8.54 (5.74,11.4) | 8.37 (4.64,12.1) |
Residence (Reference urban) | |||||
Rural | 5.38 (4.11,6.64) | 5.02 (3.46,6.59)) | 5.54 (4.26,6.82) | NA | NA |
Chronic conditions (Reference no conditions) | |||||
One condition | 7.21 (6.63,7.79) | 8.00 (7.07,8.93) | 6.48 (5.68,7.28) | 6.84 (6.05,7.64) | 7.44 (6.56,8.32) |
Two or more conditions | 12.8 (11.7,13.9) | 12.6 (11.0,14.2) | 12.7 (11.6,13.9) | 13.7 (12.2,15.2) | 11.2 (9.62,12.8) |
R-squared | 0.28 | 0.26 | 0.27 | 0.29 | 0.23 |
Variance Inflation Factor (VIF) | 1.38 | 1.35 | 1.36 | 1.40 | 1.30 |