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Table 2 Subject characteristics in relation to the TNF-α G-308 polymorphism

From: Effect of the G-308A polymorphism of the tumor necrosis factor (TNF)-α gene promoter site on plasma levels of TNF-α and C-reactive protein in smokers: a cross-sectional study

  GG n = 203 GA/AA n = 73 P-value
Gender [% male] 87 86 0.73
Age [years] 41.0 ± 9.1 42.9 ± 9.4 0.37
Regular smokers [%] 28.3 21.8 0.26
Low-density lipoprotein cholesterol [mg/dl] 119.5 ± 32.6 124.8 ± 29.1 0.22
High-density lipoprotein cholesterol [mg/dl] 44.1 ± 11.9 44.62 ± 10.9 0.76
Systolic blood pressure [mmHg] 131.7 ± 11.7 134.6 ± 17.4 0.18
Diastolic blood pressure [mmHg] 82.5 ± 11.1 82.7 ± 8.1 0.87
Glycosylated hemoglobin A1c [%] 5.1 ± 0.5 5.2 ± 0.6 0.18
Tumor necrosis factor-α [ng/l] 1.7 (1.3–2.2) 1.9 (1.4–2.2) 0.39
C-reactive protein [mg/l] 1.04 (0.53–2.36) 1.05 (0.49–3.14) 0.35
  1. Tumor necrosis factor (TNF)-α and C-reactive protein (CRP) levels were compared by the Wilcoxon test; for all other continuous variables the Student t-test was employed. Values are means ± SD except for TNF-α and CRP where the median and interquartile range is provided.