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Table 3 Hosmer–Lemeshow goodness of fit test for ACS NSQIP 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
0–103412.120.060.47 (0.01–2.63)0.63
10–203523.000.090.67 (0.07–2.41)0.37
20–303323.620.110.55 (0.06–1.99)0.82
30–403484.980.151.61 (0.69–3.17)2.15
40–503636.290.170.48 (0.10–1.39)2.09
50–6032106.710.211.49 (0.71–2.74)2.04
60–7034158.720.261.72 (0.96–2.84)6.08
70–80351011.130.320.90 (0.43–1.65)0.17
80–9033914.690.450.61 (0.28–1.16)3.98
90–100342523.730.701.05 (0.68–1.56)0.22
0–1003408585 1.00 (0.80–1.22)18.54
  1. X2HL statistic = 18.540; df = 8; P = 0.018