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Table 2 Hosmer–Lemeshow goodness of fit test for P-Possum for postoperative complications

From: Development of a preoperative risk score on admission in surgical intermediate care unit in gastrointestinal cancer surgery

Deciles of risk (%)Number of patientsNumber of observed complicationsNumber of expected complicationsMean riskO:E (95% CI)X2HL statistic
0–104043.920.101.02 (0.27–2.61)0.00
10–204445.220.120.77 (0.21–1.96)0.32
20–302443.260.141.23 (0.33–3.14)0.19
30–403264.980.161.20 (0.44–2.62)0.25
40–5047119.240.201.19 (0.59–2.13)0.42
50–602766.300.230.95 (0.35–2.07)0.02
60–702967.870.270.76 (0.28–1.66)0.61
70–80351011.290.320.89 (0.42–1.63)0.22
80–90331413.800.421.01 (0.55–1.70)0.01
90–100302019.120.641.05 (0.64–1.62)0.11
0–1003418585 1.00 (0.80–1.22)2.14
  1. X2HL statistic = 2.144; df = 8; P = 0.976