Table 6.
Comparison of incidence densities of different types of arrhythmia and Cox model measured hazard ratio between patients with and without cervical spondylosis.
| Cervical Spondylosis | ||||||
|---|---|---|---|---|---|---|
| No | Yes | |||||
| Variable (ICD-9-CM) | Event | Rate # | Event | Rate # | Crude HR (95% CI) | Adjusted HR § (95% CI) |
| Atrial fibrillation (427.31) | 127 | 0.92 | 252 | 1.93 | 2.08 (1.68, 2.58) *** | 2.22 (1.79, 2.76) *** |
| Ventricular tachycardia (427.1) | 12 | 0.09 | 33 | 0.25 | 2.89 (1.49, 5.59) ** | 3.19 (1.64, 6.20) *** |
| Supraventricular tachycardia (427.0) | 35 | 0.25 | 78 | 0.60 | 2.33 (1.56, 3.47) *** | 2.54 (1.70, 3.79) *** |
Rate #, incidence rate, per 1000 person-years; Crude HR, relative hazard ratio; Adjusted HR §: mutually adjusted for age, sex, frequency of medical visits/per year, occupation, urbanization level, comorbidity of diabetes, hypertension, hyperlipidemia, CAD, stroke, CKD or ESRD, COPD, cancer, CHF, and medications of NSAID, beta blocker, propranolol, carvedilol, and bisoprolol by using Cox proportional hazards regression; Due to low event rates, atrial flutter and ventricular fibrillation were not presented. ** p < 0.01, *** p < 0.001.