CHAPTER 3.3 164 Table 2. Multivariable Poisson regression analysis for readmission and mortality rates during hospital stay, 30 days and 1 year Readmission Mortality 30-day In-hospital 30-day 1-year Rate ratio (95% CI) p-value Rate ratio (95% CI) p-value Rate ratio (95% CI) p-value Rate ratio (95% CI) p-value Time 1.02 (1.01 – 1.03) *** 0.93 (0.92 – 0.94) *** 0.96 (0.96 – 0.97) *** 1.00 (0.99 – 1.00) Sex (ref=Women) Men 1.16 (1.13 – 1.20) *** 1.02 (0.97 – 1.08) 1.11 (1.07 – 1.15) *** 1.17 (1.15 – 1.19) *** Ethnicity (ref=Malay) Chinese 1.12 (1.08 – 1.16) *** 1.21 (1.12 – 1.30) ** 1.08 (1.03 – 1.13) ** 0.95 (0.93 – 0.98) *** Indian 1.12 (1.07 – 1.17) ** 0.82 (0.74 – 0.91) ** 0.80 (0.75 – 0.85) *** 0.87 (0.84 – 0.90) *** Others 0.81 (0.77 – 0.86) *** 1.91 (1.77 – 2.07) *** 1.30 (1.23 – 1.37) *** 0.96 (0.93 – 0.99) * Age (ref=60-<65) 20-<25 1.14 (0.94 – 1.37) 2.49 (1.88 – 3.22) *** 1.73 (1.40 – 2.11) *** 0.98 (0.85 – 1.12) 25-<30 1.01 (0.86 – 1.17) 2.62 (2.12 – 3.21) *** 1.75 (1.48 – 2.04) *** 0.99 (0.89 – 1.10) 30-<35 0.83 (0.72 – 0.95) ** 2 (1.64 – 2.43) *** 1.39 (1.20 – 1.60) *** 0.86 (0.78 – 0.94) ** 35-<40 0.98 (0.88 – 1.08) 1.25 (1.01 – 1.53) * 1.09 (0.95 – 1.25) 0.83 (0.76 – 0.89) *** 40-<45 0.95 (0.87 – 1.03) 1.15 (0.96 – 1.36) 0.98 (0.88 – 1.10) 0.83 (0.78 – 0.88) *** 45-<50 0.94 (0.88 – 1.01) 0.88 (0.75 – 1.02) 0.84 (0.76 – 0.93) ** 0.82 (0.78 – 0.86) *** 50-<55 0.99 (0.93 – 1.05) 0.85 (0.74 – 0.96) * 0.82 (0.75 – 0.89) *** 0.87 (0.83 – 0.91) *** 55-<60 0.98 (0.93 – 1.03) 0.93 (0.83 – 1.05) 0.90 (0.83 – 0.97) ** 0.93 (0.89 – 0.96) *** 65-<70 0.97 (0.92 – 1.02) 1.07 (0.96 – 1.20) 1.08 (1.01 – 1.16) * 1.05 (1.02 – 1.09) ** 70-<75 0.91 (0.87 – 0.96) ** 1.14 (1.02 – 1.27) * 1.23 (1.15 – 1.31) *** 1.15 (1.11 – 1.20) *** 75-<80 0.86 (0.81 – 0.91) *** 1.26 (1.12 – 1.41) *** 1.34 (1.25 – 1.44) *** 1.24 (1.19 – 1.29) *** 80-<85 0.84 (0.79 – 0.90) *** 1.53 (1.36 – 1.73) *** 1.59 (1.47 – 1.71) *** 1.37 (1.31 – 1.43) *** 85+ 0.75 (0.69 – 0.81) *** 1.84 (1.61 – 2.10) *** 1.94 (1.79 – 2.11) *** 1.59 (1.51 – 1.66) *** *p<0.05, **p<0.01, ***p<0.00
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