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Table 4 Familial risk of first time LAF hospitalization in individuals with parental or sibling history of AF

From: Family history as a risk factor for recurrent hospitalization for lone atrial fibrillation: a nationwide family study in Sweden

Relationship to proband

Number of pairs

Concordant pairs

OR (95% CI)*

Sibling

40,818

2,167 (5.3%)

3.23 (3.08-3.39)

Parent

34,657

4,906 (14.2%)

2.08 (2.02-2.15)

  1. Results from conditional logistic regression analysis of individuals with LAF in the Swedish population (1987–2009).
  2. *OR ratio was determined according to previous studies of familial risks [34, 35].