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Table 6 Hosmer–Lemeshow goodness of fit test for MyIPOriskScore 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
0–103421.150.031.75 (0.20–6.30)0.66
10–203402.070.060.00 (-)2.20
20–303433.060.090.98 (0.20–2.86)0.00
30–403444.010.121.00 (0.27–2.55)0.00
40–503475.250.151.33 (0.53–2.75)0.69
50–603486.340.191.26 (0.54–2.49)0.53
60–703478.400.250.83 (0.33–1.72)0.31
70–80341110.910.321.01 (0.50–1.80)0.00
80–90341616.420.480.97 (0.56–1.58)0.02
90–100342727.390.810.99 (0.65–1.43)0.03
0–1003408585 1.00 (0.80–1.22)4.44
  1. X2HL statistic = 4.440; df = 8; P = 0.815