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Table 5 Standardised mortality ratios (SMRs) for patient view and for admission view.

From: Predicting hospital mortality among frequently readmitted patients: HSMR biased by readmission

Patient View SMR per Patient View Category Lower 95% CI of SMR Upper 95% CI of SMR Admission View SMR per Admission View Category Lower 95% CI of SMR Upper 95% CI of SMR
P(m = 1) 126.8 124.1 129.4 A(n = 1) 90.4 88.5 92.3
P(m = 2) 85.3 82.2 88.5 A(n = 2) 96.0 92.5 99.6
P(m = 3) 72.5 68.7 76.5 A(n = 3) 99.2 94.1 104.6
P(m = 4) 63.1 58.6 67.8 A(n = 4) 98.1 91.1 105.5
P(m = 5, 6) 53.4 49.5 57.5 A(n = 5, 6) 97.4 90.3 104.9
P(m = 7-9) 49.3 44.6 54.3 A(n = 7-9) 95.8 86.7 105.6
P(m = 10-20) 37.1 32.8 41.8 A(n = 10-20) 90.4 79.9 102.0
P(m > 20) 34.9 26.3 45.5 A(n > 20) 96.1 72.4 125.1