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. 2021 Dec 20;118(2):488–502. [Article in Portuguese] doi: 10.36660/abc.20201233

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.

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