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Table 3 Odds ratio estimates in multivariable logistic regression for acute coronary syndrome by Firth’s penalized likelihood adjusted for EPA/AA ratio

From: Association between the ratio of serum n-3 to n-6 polyunsaturated fatty acids and acute coronary syndrome in non-obese patients with coronary risk factor: a multicenter cross-sectional study

 BMI group (BMI range)  
 Low BMI (< 25)Moderate BMI (25–< 27.5)High BMI (≥27.5)
 OR95% CIP valueOR95% CIP valueOR95% CIP value
Sex1.410.672.970.370.880.233.390.850.870.282.720.80
Age1.031.001.060.061.030.981.080.270.990.951.030.53
Smoking history2.281.304.000.00*1.460.543.980.460.910.342.420.85
HbA1c1.090.881.360.431.340.981.820.071.461.032.080.04*
CCB1.380.812.360.240.750.282.010.560.590.201.670.32
ARB1.090.641.880.751.070.422.740.890.470.171.310.15
LDL-C1.000.991.010.441.021.001.030.05*1.000.981.010.81
EPA/AA ratio0.410.151.180.101.130.235.450.882.420.599.920.22
  1. BMI body mass index, SE standard error, CI confidence interval, HbA1c hemoglobin A1c, CCB calcium channel blocker, ARB angiotensin II receptor blocker, LDL-C low-density lipoprotein cholesterol, EPA/AA ratio eicosapentaenoic acid/arachidonic acid ratio
  2. * means P < 0.05. All models were fitted in complete cases who did not have missing data: event/n ratios were 61/812 (Low), 19/275 (Moderate), and 20/203 (High)