PMC:2940023 / 20542-22207
Annnotations
{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/2940023","sourcedb":"PMC","sourceid":"2940023","source_url":"https://www.ncbi.nlm.nih.gov/pmc/2940023","text":"The reclassification measures for all models are presented in Table 6.\nTable 6 Reclassification measures obtained by adding CTCS to the existing prediction models\nModel Reclassification percentages % Correcta Chi-squared excluding CTCSb p value Chi-squared including CTCSc p value NRI, % p value for NRI Reclassification improvement (cases)d Reclassification improvement (non-cases)d IDI, % p value for IDI\nOverall Reclassified from ≥30–50% Reclassified from ≥50–70%\n1 47.2 79.4 83.3 73.3 25.01 \u003c0.00001 10.91 \u003c0.01 33.6 \u003c0.0001 \u003c0.0001 0.23 18.8 \u003c0.001\n2 36.2 73.0 71.2 54.3 6.57 0.01 4.70 0.03 24.0 0.001 \u003c0.001 0.31 14.8 \u003c0.001\n3 38.2 77.5 75.5 63.9 4.14 0.04 3.31 0.07 21.8 0.005 \u003c0.001 0.58 14.9 \u003c0.001\n4 34.3 74.4 74.0 83.9 3.82 0.05 1.58 0.21 24.9 \u003c0.001 \u003c0.001 0.29 13.3 \u003c0.001\n5 37.8 77.5 75.9 69.8 3.65 0.06 5.14 0.02 22.6 0.003 \u003c0.001 0.58 14.4 \u003c0.001\nCTCS computed tomography coronary calcium score, NRI net reclassification improvement, IDI integrated discrimination improvement\naIf the predicted probability of obstructive CAD of the model including CTCS was closer to the observed probability of CAD compared with the prediction of the model without CTCS, the reclassification was considered to be correct\nbReclassification calibration (Hosmer–Lemeshow) statistic for model without CTCS, using cells from the reclassification table with at least 20 observations\ncReclassification calibration statistic for models including CTCS, using cells from the reclassification table with at least 20 observations\ndThe reclassification improvement is defined as the difference in proportions of patients moving up and down for cases and non-cases 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