Variables | Mean±SD/number | Proportion of readmission | HR (95% CI) | |
---|---|---|---|---|
Separately entered variables (unadjusted) | Simultaneously entered variables (mutually adjusted) | |||
Intellectual disability | ||||
No | 62 286 | 37.62% | Ref | Ref |
Yes | 397 | 46.35% | 1.36 (1.18 to 1.57)* | 1.35 (1.17 to 1.56)* |
Age at 1st admission (years old) | 58.61±20.90 | – | 1.017 (1.016 to 1.018)* | 1.016 (1.015 to 1.016)* |
Gender | ||||
Female | 34 465 | 37.09% | Ref | Ref |
Male | 28 209 | 38.40% | 1.05 (1.02 to 1.07)* | 1.03 (1.01 to 1.06)* |
Unknown | 9 | 0.00% | – | – |
Ethnicity | ||||
White | 40 067 | 41.77% | Ref | Ref |
Black | 10 043 | 31.53% | 0.71 (0.69 to 0.74)* | 0.87 (0.83 to 0.90)* |
South Asian | 2115 | 36.45% | 0.84 (0.78 to 0.91)* | 0.92 (0.86 to 0.99)* |
East Asian | 1477 | 29.45% | 0.66 (0.60 to 0.72)* | 0.77 (0.70 to 0.85)* |
Others/mixed/unknown | 8981 | 27.93% | 0.62 (0.59 to 0.64)* | 0.71 (0.68 to 0.74)* |
Discharge method | ||||
Discharged on clinical advice/clinical consent | 61 602 | 37.56% | Ref | Ref |
Self-discharged, or by a relative/advocate | 1059 | 44.48% | 1.26 (1.15to 1.38)* | 1.43 (1.31 to 1.57)* |
Others | 22 | 45.45% | 1.51 (0.81 to 2.80) | 1.64 (0.88 to 3.04) |
Number of physical comorbidities | ||||
0–8 | 21 772 | 40.58% | Ref | Ref |
9 or more | 40 911 | 36.13% | 0.79 (0.77 to 0.81)* | 0.84 (0.82 to 0.86)* |
*Statistical significance.