Table 4. Univariate and multivariate logistic regression analysis of predictors of a higher diagnostic performance of 24H monitoring.
AVB = Atrio-ventricular block; BFB = Bifascicular block; CA = Cardiology department; CI = Confidence Interval; CRD = Chronic renal disease; EF = Left ventricular ejection fraction; HT = Hypertension; IAB = Inter-atrial block; IVCD = Intra-ventricular conduction delay (QRS width of > 120 ms); LAD = Left atrial diameter; OR = Odds Ratio; SA = Sleep apnea; SHD = Structural heart disease. Model #1: Mutivariate analysis performed over the total study population (n=1017); Model #2: Secondary analysis performed after incorporating echocardiographic variables (n=143).
| Univariate | |||
|---|---|---|---|
| Variable | OR | CI 95% | P |
| Age > 50 years | 1,53 | [0,56 – 4,23] | 0,41 |
| Gender (Female) | 0,56 | [0,26 – 1,18] | 0,13 |
| HT | 0,98 | [0,47 – 2,06] | 0,96 |
| SHD | 2,70 | [1,29 – 5,66] | 0,008 |
| EF | 0,97 | [0,92 – 1,01] | 0,16 |
| LAD > 40 mm | 1,08 | [1,03 – 1,14] | 0,004 |
| SA | 0,57 | [0,13 – 2,59] | 0,48 |
| CRD | 2,80 | [1,29 – 6,07] | 0,009 |
| IAB | 5,07 | [1,69 – 15,21] | 0,004 |
| PR interval | 0,99 | [0,99 – 1,01] | 0,98 |
| Baseline AVB | 1,84 | [0,74 – 4,61] | 0,19 |
| QRS width | 1,01 | [0,99 – 1,03] | 0,291 |
| QRS > 120 ms | 1,57 | [0,61 – 3,98] | 0,37 |
| BFB | 0,96 | [0,31 – 2,99] | 0,94 |
| Medical specialty (CA) | 5,36 | [2,36 – 12,15] | < 0,001 |
| Multiivariate | |||
| Model #1 | OR | CI 95% | P |
| IAB | 4,14 | [1,28 – 13,43] | 0,018 |
| CA | 4,11 | [1,20 – 14,04] | 0,024 |
| Model #2 | OR | IC 95% | P |
| IAB | 3,71 | [1,03 – 13,3] | 0,044 |