Table I.
Characteristics of the 13,166 study subjects.
| Characteristic | Atrial fibrillation | Control | P-value |
|---|---|---|---|
| No. of subjects | 884 | 12,282 | |
| Age (years) | 75.8±12.3 | 59.4±13.2 | <0.0001 |
| Sex (male/female, %) | 67.8/32.2 | 56.8/43.2 | <0.0001 |
| Body mass index (kg/m2) | 23.4±3.7 | 23.3±3.5 | 0.7412 |
| Current or former smoker (%) | 33.6 | 36.3 | 0.2576 |
| Hypertension (%) | 83.9 | 51.1 | <0.0001 |
| Diabetes mellitus (%) | 51 | 23.2 | <0.0001 |
| Dyslipidemia (%) | 65.3 | 62 | 0.188 |
| Chronic kidney disease (%) | 40.3 | 23 | <0.0001 |
| Hyperuricemia (%) | 31.9 | 17 | <0.0001 |
Quantitative data are presented as the mean ± standard deviation and were compared between patients with atrial fibrillation and control individuals using the unpaired Student's t test. Categorical data were compared between the two groups using Fisher's exact test. Based on Bonferroni's correction, P<0.0056 (0.05/9) was considered to indicate a statistically significant difference.