Table 1. Propensity score matching was applied for each cohort using the covariates gender, age, region, and education.
| Variable | Original cohort | Propensity score matched cohort | ||||
|---|---|---|---|---|---|---|
| Disabled, n (%) | Non-disabled, n (%) | Standardized difference | Disabled, n (%) | Non-disabled, n (%) | Standardized difference | |
| N | 986 | 10,619 | 985 | 2,955 | ||
| Age, yrs, (SD) | 39.1 (17.4) | 39.5 (22.1) | -0.024 | 39.1 (17.4) | 37.8 (19.7) | 0.085 |
| Gender | ||||||
| Male | 697 (70.8) | 4,719 (44.4) | -0.578 | 697 (70.8) | 2091 (70.8) | 0.000 |
| Female | 288 (29.2) | 5,900 (55.6) | 288 (29.2) | 864 (29.2) | ||
| Region | ||||||
| Urban | 771 (78.3) | 9,118 (85.9) | 0.184 | 771 (78.3) | 2,313 (78.3) | 0.000 |
| Suburban | 214 (21.7) | 1,501 (14.1) | 214 (21.7) | 642 (21.7) | ||
| Education | ||||||
| ≤Elementary school | 312 (31.7) | 3,776 (35.6) | -0.117 | 312 (31.7) | 936 (31.7) | -0.007 |
| Middle school | 132 (13.4) | 1,196 (11.3) | 132 (13.4) | 396 (13.4) | ||
| High school | 452 (45.9) | 2,822 (26.6) | 453 (45.9) | 1,336 (45.2) | ||
| ≥College | 89 (9.0) | 2,825 (26.6) | 89 (9.0) | 287 (9.7) | ||