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Table 4 Odds ratios (ORs) and 95% confidence intervals (CIs) for hyper-LDL cholesterolemia by Mt5178 C/A genotype and smoking status

From: Mitochondrial DNA 5178 C/A polymorphism influences the effects of habitual smoking on the risk of dyslipidemia in middle-aged Japanese men

Genotype and number of cigarette smoked daily

Frequency

OR (95% CI)

Adjusted OR† (95% CI)

Adjusted OR‡ (95% CI)

Normal LDLcholesterol (LDL cholesterol < 140 mg/dl)

Hyper-LDLcholesterolemia (LDL cholesterol ≥ 140 mg/dl)

Mt5178C

     

0 (never- or ex-smoker)

107 (75.4)

35 (24.6)

1 (reference)

1 (reference)

1 (reference)

1-20

53 (75.7)

17 (24.3)

0.981 (0.504-1.910)

0.972 (0.492-1.923)

0.944 (0.460-1.940)

>20

16 (59.3)

11 (40.7)

2.102 (0.892-4.953)

2.181 (0.889-5.348)

2.506 (0.973-6.457)

   

P for trend = 0.181

P for trend = 0.160

P for trend = 0.164

Mt5178A

     

0 (never- or ex-smoker)

75 (81.5)

17 (18.5)

1 (reference)

1 (reference)

1 (reference)

1-20

26 (65.0)

14 (35.0)

2.376 (1.029-5.482)*

2.993 (1.222-7.330)*

2.790 (1.080-7.206)*

>20

14 (60.9)

9 (39.1)

2.836 (1.055-7.626)*

2.982 (1.080-8.232)*

2.908 (1.012-8.351)*

   

P for trend = 0.017

P for trend = 0.014

P for trend = 0.035

  1. †OR adjusted for age and body mass index.
  2. ‡OR adjusted for age, body mass index, habitual alcohol consumption, coffee consumption and antihypertensive medication.
  3. *P < 0.05, **P < 0.005.