Sociodemographic and clinical variables for the study population and their associations with the composite outcome
| Cohort characteristics | Association with composite outcome in crude models | ||
| Frequency (%); N=316 | OR (95% CI) | P value | |
| Age | |||
| Mean (SD) | 56.5 (18.5) years | 1.00 (0.98 to 1.01) | 0.508 |
| Male | 162 (51.3) | 1.39 (0.88 to 2.18) | 0.153 |
| Ethnicity | |||
| Caucasian | 207 (65.5) | Reference | |
| Aboriginal | 26 (8.2) | 1.54 (0.68 to 3.49) | 0.303 |
| South Asian | 17 (5.4) | 0.72 (0.26 to 2.02) | 0.531 |
| Other | 54 (17.1) | 1.42 (0.78 to 2.59) | 0.254 |
| No response | 12 (3.8) | ||
| Education | |||
| Less than high school | 58 (18.4) | Reference | |
| High school graduate | 78 (24.7) | 1.07 (0.54 to 2.12) | 0.846 |
| Apprenticeship or trades | 28 (8.9) | 0.84 (0.34 to 2.07) | 0.700 |
| Some postsecondary | 83 (26.3) | 0.54 (0.27 to 1.07) | 0.079 |
| Postsecondary graduate | 59 (18.7) | 0.66 (0.32 to 1.38) | 0.271 |
| No response | 10 (3.2) | ||
| Employment | |||
| Currently working | 86 (27.2) | Reference | |
| Unemployed | 28 (8.9) | 0.82 (0.33 to 1.96) | 0.640 |
| Retired | 126 (39.9) | 1.18 (0.67 to 2.06) | 0.564 |
| Other | 66 (20.9) | 1.75 (0.91 to 3.34) | 0.091 |
| No response | 10 (3.2) | ||
| Household income | |||
| <CAD$25 000 | 69 (21.8) | Reference | |
| CAD$25 000-CAD$49 999 | 46 (14.6) | 1.16 (0.54 to 2.48) | 0.708 |
| CAD$50 000–CAD$74 999 | 36 (11.4) | 0.90 (0.40 to 2.05) | 0.810 |
| CAD$75 000-CAD$99 000 | 28 (8.9) | 1.27 (0.52 to 3.06) | 0.599 |
| CAD$100 000 or greater | 41 (13.0) | 0.63 (0.24 to 1.61) | 0.337 |
| No response | 96 (30.4) | ||
| Marital status | |||
| Married/common law | 164 (51.9) | Reference | |
| Widowed | 28 (8.9) | 1.04 (0.46 to 2.33) | 0.930 |
| Divorced/separated | 40 (12.7) | 1.25 (0.62 to 2.51) | 0.528 |
| Single, never married | 75 (23.7) | 1.46 (0.84 to 2.54) | 0.180 |
| No response | 9 (2.9) | ||
| Number of Elixhauser comorbidities | |||
| 0 | 52 (16.5) | Reference | |
| 1–2 | 136 (43.0) | 2.26 (1.11 to 4.62) | 0.025 |
| 3–4 | 98 (31.0) | 3.00 (1.43 to 6.32) | 0.004 |
| 5 or greater | 30 (9.5) | 6.00 (2.24 to 16.07) | <0.001 |
| Comorbidities | |||
| Hypertension | 120 (38.0) | 1.29 (0.81 to 2.04) | 0.281 |
| Diabetes mellitus | 94 (29.8) | 1.22 (0.75 to 1.98) | 0.419 |
| Congestive heart failure | 41 (13.0) | 2.07 (1.05 to 4.05) | 0.036 |
| Alcohol use disorder | 47 (14.9) | 1.68 (0.90 to 3.13) | 0.105 |
| Chronic pulmonary disease | 34 (10.8) | 1.20 (0.58 to 2.47) | 0.619 |
| Metastatic cancer | 10 (3.2) | 0.65 (0.34 to 1.25) | 0.199 |
| Number of preadmission medications | |||
| 0 | 26 (8.2) | Reference | |
| 1–5 | 134 (42.4) | 0.89 (0.38 to 2.09) | 0.793 |
| 6–10 | 85 (26.9) | 1.36 (0.56 to 3.32) | 0.495 |
| Greater than 10 | 31 (9.81) | 2.16 (0.75 to 6.24) | 0.155 |
| Missing | 40 (12.7) | ||
| Length of stay | |||
| Mean (SD) | 8.3 (8.3) days | 1.04 (1.00 to 1.07) | 0.033 |