Table 1: Distribution of CHA2DS2-VASc score in single chamber ICD recipients without indication for anticoagulation (171 patients; mean age 59.1 (SD±15.5) years) from 2011/01/01 to 2013/10/31, Heart Centre in Munich) used for calculation of the base-case scenario stroke rate; adjusted stroke rate per year [23].

CHA2DS2-VASc Scoren (%)Adjusted stroke rate per year

013 (7.6)0%
116 (9.4)1.3%
228 (16.4)2.2%
331 (18.1)3.2%
440 (23.4)4.0%
527 (15.8)6.7%
613 (7.6)9.8%
72 (1.2)9.6%
81 (0.6)6.7%
90 (0.0)15.2%
All (base-case)171 (100.0)3.96% (combined risk set as base-case)

Frequency of CHA2DS2-VASc risk factors in total sample: congestive heart failure = 87.13%; hypertension = 70.18%; age > 75 = 25.73%; diabetes mellitus = 22.22%; stroke/TIA = 31.58%; vascular disease = 9.36%; age: 65-74 = 58.48%; sex category: women = 15.79%.