Table 4

‚ÄÉComparison of survival between the low and high risk populations derived from the Petersen index across the two study populations (95% CI)

RiskPetersenYorkshire (colon)Yorkshire (rectal)Yorkshire (colorectal)
Low85.7 (79.4 to 90.2)69.5 (66.5 to 72.4)69.8 (65.5 to 73.8)69.6 (67.1 to 72.0)
High49.8 (37.0 to 61.3)45.2 (34.7 to 55.1)39.5 (25.0 to 53.7)43.3 (34.8 to 51.6)
Total76.1 (70.0 to 81.0)67.4 (64.4 to 70.2)67.3 (63.1 to 71.2)67.4 (65.0 to 69.6)