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. 2021 Oct 19;29(1):22–32. doi: 10.1093/jamia/ocab218

Table 2.

Risk concentration of the ensembled fatal and nonfatal prediction models which were validated in the test set

Fatal/Nonfatal Ensembling method Quantile Prescriptions Cases Proportion of cases Inclusive lower bound Exclusive upper bound
Fatal Mean 1 4 106 507 32 0.033 0.00E+00 1.65E−08
2 210 474 4 0.004 1.65E−08 6.28E−08
3 1 412 596 14 0.015 6.28E−08 3.33E−05
4 1 429 211 33 0.034 3.33E−05 3.53E−04
5 1 431 757 40 0.042 3.53E−04 7.07E−04
6 1 432 104 66 0.069 7.07E−04 1.46E−03
7 1 434 688 100 0.104 1.46E−03 2.92E−03
8 1 428 476 171 0.178 2.92E−03 6.80E−03
9 1 431 756 503 0.522 6.80E−03 3.34E−01
Ridge regression 1 1 431 758 81 0.084 3.85E−05 5.47E−05
2 4 776 940 43 0.045 5.47E−05 5.48E−05
3 950 091 4 0.004 5.48E−05 5.48E−05
4 1 443 236 55 0.057 5.48E−05 5.54E−05
5 1 420 274 60 0.062 5.54E−05 5.66E−05
6 1 431 800 103 0.107 5.66E−05 6.00E−05
7 1 431 716 159 0.165 6.00E−05 6.73E−05
8 1 431 754 458 0.476 6.73E−05 3.19E−01
Nonfatal Mean 1 1 929 336 43 0.011 0.00E+00 1.93E−08
2 933 421 25 0.006 1.93E−08 8.68E−06
3 1 437 802 67 0.017 8.68E−06 2.50E−04
4 1 425 055 81 0.020 2.50E−04 6.91E−04
5 1 432 474 123 0.031 6.91E−04 1.41E−03
6 1 430 183 143 0.035 1.41E−03 2.55E−03
7 1 431 883 290 0.072 2.55E−03 4.50E−03
8 1 431 048 415 0.103 4.50E−03 8.04E−03
9 1 431 205 835 0.207 8.04E−03 1.59E−02
10 1 431 377 2009 0.498 1.59E−02 2.86E−01
Ridge regression 1 1 431 493 106 0.026 1.33E−04 2.11E−04
2 2 073 804 45 0.011 2.11E−04 2.11E−04
3 788 932 19 0.005 2.11E−04 2.11E−04
4 1 431 285 96 0.024 2.11E−04 2.14E−04
5 1 432 043 143 0.035 2.14E−04 2.21E−04
6 1 430 714 172 0.042 2.21E−04 2.31E−04
7 1 431 378 239 0.059 2.31E−04 2.49E−04
8 1 431 379 478 0.119 2.49E−04 2.85E−04
9 1 431 378 807 0.200 2.85E−04 3.85E−04
10 1 431 378 1926 0.478 3.85E−04 9.97E−01