Table 4. Pediatric Sudden Cardiac Death Risk Prediction Model and Sensitivity Analyses for Predictor of Missingness.
| Predictor Variable | SCD Risk Prediction Model | Sensitivity Analysis: Model Including Predictors of Missingness | ||
|---|---|---|---|---|
| Hazard Ratio (95% CI) | P Value | Hazard Ratio (95% CI) | P Value | |
| NSVT | 1.20 (0.53-2.76) | .66 | 1.16 (0.52-2.61) | .72 |
| LA diameter z score | 1.14 (1.03-1.26) | .01 | 1.13 (1.03-1.25) | .01 |
| MWT | ||||
| z Score | 1.24 (1.07-1.45) | .005 | 1.24 (1.07-1.44) | .005 |
| z Score2 | 0.995 (0.99-1.00) | .04 | 0.995 (0.99-1.00) | .04 |
| LVOT gradient | 0.99 (0.99-1.00) | .10 | 0.99 (0.99-1.00) | .11 |
| Unexplained syncope | 1.54 (0.79-2.98) | .20 | 1.52 (0.79-2.92) | .22 |
| NYHA | 1.15 (0.62-2.11) | .66 | ||
| Uno C statistic | 0.69 (0.66-0.72) | NA | 0.69 (0.66-0.72) | NA |
| Calibration slope | 0.98 (0.59-1.38) | NA | 0.96 (0.56-1.36) | NA |
Abbreviations: LA, left atrium; LVOT, left ventricular outflow tract; MWT, maximal wall thickness; NA, not applicable; NSVT, nonsustained ventricular tachycardia; NYHA, New York Heart Association; SCD, sudden cardiac death.