Table 1. – Comparison of group characteristics.
DDD-Var n=34 | DDD-His n=17 | p | |
---|---|---|---|
Male, n(%) | 21 (61.8) | 7 (41.2) | 0.274 |
Age in years, mean ± SD | 74.0±8.9 | 79.0±7.9 | 0.063 |
Underlying disease, n(%) | 0.004 | ||
Complete AVB | 17 (50.0) a | 3 (17.6) b | |
Second-degree AVB | 9 (26.5) a | 3 (17.6) a | |
Sinus node dysfunction | 8 (23.5) a | 11 (64.7) b | |
Preserved ejection fraction (>50%), n(%) | 27 (90.0) | 13 (86.7) | 0.999 |
SD: standard deviation. Associations between categorical variables were tested with Fisher's exact test or the chi-square test with Yates correction, while associations between quantitative variables were tested with Student's t-test for independent samples. a, b: different letters indicate significantly different percentages.