Table 5 Duration of Total hospital stay compared to risk of 30-day and 90-day hospital readmission in AD and non-AD cohorts
< 10 days (Ref.) | 10–19 days | 20–29 days | ≥ 30 days | |||
|---|---|---|---|---|---|---|
30-day Readmission | ||||||
AD Cohort | n Readmitted/ n (%) | 672/6266 (10.7) | 110/1047 (10.5) | 102/1002 (10.2) | 85/812 (10.5) | 375/3405 (11.0) |
RR (95% CI) Unadjusted | 1.00 | 0.97 (0.73–1.28) | 0.99 (0.74–1.28) | 1.05 (0.84–1.32) | ||
RR (95% CI) a | 1.00 | 0.90 (0.68–1.21) | 0.93 (0.69–1.26) | 0.96 (0.76–1.21) | ||
RR (95% CI) b | 1.00 | 0.87 (0.65–1.16) | 0.90 (0.66–1.22) | 0.90 (0.71–1.14) | ||
Non-AD Cohort | n Readmitted/ n (%) | 836/6266 (13.3) | 145/996 (14.6) | 130/1114 (11.7) | 132/1027 (12.9) | 429/3129 (13.7) |
RR (95% CI) Unadjusted | 1.00 | 0.78 (0.60–0.99) | 0.87 (0.67–1.11) | 0.93 (0.76–1.14) | ||
RR (95% CI) a | 1.00 | 0.75 (0.58–0.97) | 0.88 (0.68–1.13) | 0.94 (0.76–1.15) | ||
RR (95% CI) b | 1.00 | 0.73 (0.56–0.94) | 0.85 (0.65–1.10) | 0.88 (0.71–1.09) | ||
90-day Readmission | ||||||
AD Cohort | n Readmitted/ n (%) | 1059/6266 (16.9) | 158/1047 (15.1) | 153/1002 (15.3) | 132/812 (16.3) | 616/3405 (18.1) |
RR (95% CI) Unadjusted | 1.00 | 1.01 (0.80–1.29) | 1.09 (0.85–1.41) | 1.24 (1.03–1.50) | ||
RR (95% CI) a | 1.00 | 0.97 (0.76–1.24) | 1.05 (0.81–1.35) | 1.17 (0.96–1.42) | ||
RR (95% CI) b | 1.00 | 0.94 (0.74–1.20) | 1.02 (0.79–1.32) | 1.12 (0.92–1.37) | ||
Non-AD Cohort | n Readmitted/ n (%) | 1300/6266 (20.7) | 194/996 (19.5) | 196/1114 (17.6) | 200/1027 (19.5) | 710/3129 (22.7) |
RR (95% CI) Unadjusted | 1.00 | 0.88 (0.71–1.10) | 1.00 (0.80–1.25) | 1.21 (1.02–1.45) | ||
RR (95% CI) a | 1.00 | 0.86 (0.69–1.07) | 1.00 (0.80–1.25) | 1.22 (1.02–1.47) | ||
RR (95% CI) b | 1.00 | 0.84 (0.67–1.05) | 0.97 (0.77–1.21) | 1.16 (0.97–1.40) |