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. Author manuscript; available in PMC: 2012 Sep 1.
Published in final edited form as: Am Heart J. 2011 Aug 11;162(3):538–541. doi: 10.1016/j.ahj.2011.06.013

Table 2.

Risk of incident atrial fibrillation: results of Cox regression analyses with 25(OH)D as standardized continuous variable and dichotomized at the cohort specific 20th percentile

Hazards ratio*
(95% confidence
interval)		 p value
25(OH)D as standardized continuous variable
Age- and sex-adjusted 0.97 (0.88 – 1.07) 0.49
Main model† 0.99 (0.89 – 1.10) 0.82
Main model + hypertension, history of MI, history of HF, and winter season 0.99 (0.88 – 1.10) 0.81
25(OH)D < the cohort specific 20th percentile
Age- and sex-adjusted 1.08 (0.84 – 1.39) 0.54
Main model† 1.06 (0.82 – 1.38) 0.65
Main model + hypertension, history of MI, history of HF, and winter season 1.08 (0.82 – 1.41) 0.59

MI, myocardial infarction; HF, heart failure.

*

Hazards ratios for incident AF are shown per cohort-specific 1 SD increment in 25(OH)D levels or for presence of a 25(OH)D concentration < the cohort specific 20th percentile.

†

The main model covariates included: age, sex, body mass index, PR-interval, and cardiac murmur.