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Table 3 Hosmer-Lemeshow goodness of fit test for groups of mortality risk; entire cohort

From: Performance of the pediatric index of mortality 2 (PIM-2) in cardiac and mixed intensive care units in a tertiary children’s referral hospital in Italy

ALL (HL chi2 [10] = 68.0; p < 0.001)
Group of risk N Obs % Exp % HL SMR 95% CI P-value
0.000 - 0.003 291 2 (0.7) 0.6 (0.2) 3.2 3.3 (0.4 - 11.9) NS
0.003 - 0.006 291 0 (0.0) 1.2 (0.4) 1.2 0.0 (0.0 - 3.0) NS
0.006 - 0.010 291 5 (1.7) 2.2 (0.8) 3.4 2.2 (0.7 - 5.2) NS
0.010 - 0.014 291 7 (2.4) 3.4 (1.2) 4.0 2.1 (0.8 - 4.3) NS
0.014 - 0.018 292 6 (2.1) 4.6 (1.6) 0.4 1.3 (0.5 - 2.9) NS
0.018 - 0.025 291 7 (2.4) 6.1 (2.1) 0.1 1.2 (0.5 - 2.4) NS
0.025 - 0.035 291 6 (2.1) 8.5 (2.9) 0.8 0.7 (0.3 - 1.5) NS
0.035 - 0.066 291 13 (4.5) 14.1 (4.9) 0.1 0.9 (0.5 - 1.6) NS
0.066 - 0.175 291 30 (10.3) 30.9 (10.6) 0.0 1.0 (0.7 - 1.4) NS
0.175 - 1.000 292 53 (18.2) 114.7 (39.3) 54.7 0.5 (0.4 - 0.6) < 0.001
Total 2,912 129 (4.4) 186.4 (6.4) 68.0 0.7 (0.6 - 0.8) < 0.001