TABLE 3.
Predictors of Inappropriate ICD Shocks
| Parameters | Univariable | Multivariable, Adjusted | ||||
|---|---|---|---|---|---|---|
|
| ||||||
| HR | 95% CI | P value | HR | 95% CI | P value | |
| History of AF | 3.80 | 1.66 – 8.31 | 0.002 | – | ||
| Age < 70 years | 3.82 | 1.13 – 23.8 | 0.028 | – | ||
| Sex (male) | 1.36 | 0.58 – 3.73 | 0.50 | – | ||
| QRS < 120ms | 2.53 | 1.02 – 7.63 | 0.046 | – | ||
| LAVImin, mL/m2 | 1.02 | 1.00 – 1.03 | 0.027 | 1.01 | 0.99 – 1.02 | 0.36 |
| LAVImax, mL/m2 | 1.01 | 0.99 – 1.03 | 0.097 | – | ||
| LAVIpreA, mL/m2 | 1.01 | 0.99 – 1.03 | 0.084 | – | ||
| LASVI, mL/m2 | 0.92 | 0.85 – 0.98 | 0.012 | 0.94 | 0.87 – 1.01 | 0.11 |
| LA total EF, % | 0.96 | 0.94 – 0.99 | 0.006 | 0.98 | 0.95 – 1.06 | 0.13 |
| LA passive EF, % | 0.98 | 0.93 – 1.02 | 0.36 | – | ||
| LA active EF, % | 0.96 | 0.93 – 0.99 | 0.004 | 0.98 | 0.95 – 1.00 | 0.11 |
| LASmax, % | 0.94 | 0.90 – 0.98 | 0.002 | 0.96 | 0.91 – 0.99 | 0.044 |
| LASpreA, % | 0.91 | 0.85 – 0.96 | 0.001 | 0.94 | 0.87 – 0.99 | 0.030 |
| LASRs, 1/s | 0.26 | 0.08 – 0.75 | 0.011 | 0.41 | 0.12 – 1.42 | 0.096 |
| LASRe, 1/s | 0.51 | 0.16 – 1.32 | 0.18 | – | ||
| LASRa, 1/s | 0.26 | 0.11 – 0.55 | 0.002 | 0.25 | 0.10 – 0.57 | <0.001 |
LASRe and LASRa are presented as absolute value. A Cox regression model was used. Multivariable modeling was performed by adjusting each variable for history of AF, age <70 years, and QRS <120ms which were significant in univariable analyses.