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. Author manuscript; available in PMC: 2013 Apr 1.
Published in final edited form as: Circ Arrhythm Electrophysiol. 2012 Jan 26;5(2):273–278. doi: 10.1161/CIRCEP.111.967661

Table 3. Hazard ratio of sudden cardiac death by serum concentration of non-esterified fatty acids.

Quartiles of non-esterified fatty acids (mEq/L)
 Range ≤0.35 >0.35-0.47 >0.47-0.61 >0.61
 N 1168 1166 1161 1162
Cases of SCD 62 65 52 42
Person-years of follow-up 12033 11927 11395 11113
Hazard ratio (95% CI) 1 1.00
(Ref.)		 1.11
(0.78, 1.58)
p=0.56		 1.00
(0.69, 1.46)
p=1.00		 0.89
(0.59, 1.34)
p=0.58
Hazard ratio (95% CI) 2 1.00
(Ref.)		 1.15
(0.81, 1.64)
p=0.42		 1.06
(0.72, 1.55)
p=0.77		 0.91
(0.60, 1.38)
p=0.65
1

adjusted for age, gender, race, and clinic site

2

adjusted for age, gender, race, clinic site, smoking status (never, former, current), alcohol consumption (0, <7, ≥7 drinks/wk), prevalent CHD, prevalent CHF, self-reported health status (excellent, very good, good, fair, poor)