Univariate analysis of potential predictor factors for 3-month readmission
| Factors | Unadjusted OR (95% CI) | P value |
| ADL impairment | 3.75 (1.87 to 7.53) | <0.001 |
| Bathing impairment | 3.90 (1.85 to 8.22) | <0.001 |
| Transferring impairment | 2.17 (1.03 to 4.58) | 0.04 |
| Toileting impairment | 1.85 (0.75 to 4.58) | 0.18 |
| Dressing impairment | 1.26 (0.43 to 3.64) | 0.67 |
| Eating impairment | 1.03 (0.18 to 5.77) | 0.98 |
| Incontinence | 1.38 (0.22 to 8.49) | 0.73 |
| Age | 1.04 (1.00 to 1.08) | 0.06 |
| Female | 1.05 (0.56 to 1.96) | 0.87 |
| Total number of comorbidities | 1.68 (1.25 to 2.26) | 0.001 |
| History of hospitalisation in the past year | 3.07 (1.45 to 6.50) | 0.003 |
| Anaemia | 2.74 (1.23 to 6.13) | 0.01 |
| Hypertension | 3.05 (0.86 to 10.86) | 0.09 |
| Coronary heart disease | 1.31 (0.60 to 2.87) | 0.49 |
| Diabetes | 1.26 (0.65 to 2.46) | 0.50 |
| Chronic kidney disease | 3.63 (1.72 to 7.67) | 0.001 |
| Stroke | 1.68 (0.74 to 3.82) | 0.22 |
| Dyslipidaemia | 0.91 (0.41 to 2.01) | 0.81 |
| Peripheral vascular disease | 1.03 (0.34 to 3.16) | 0.96 |
| Chronic obstructive pulmonary disease | 1.03 (0.34 to 3.16) | 0.96 |
ADL, activities of daily living.