Table 2.

Association between plasma C-reactive protein and covariates among controls at baseline

VariablesQuartiles of plasma C-reactive protein
Lowest (<0.24 mg/L)Second (0.24-0.45 mg/L)Third (0.46-0.95 mg/L)Highest (≥0.96 mg/L)Ptrend
Men, n (%)86 (46)104 (55)101 (54)101 (54)0.16*
Age (y), mean56.055.657.057.90.0024
Pack-years of smoking, mean9.212.113.114.40.0018
BMI, mean22.323.223.924.3<0.0010
Alcohol consumption, mean78.484.891.4108.10.076
Physical exercise, n (%)36 (20)34 (18)29 (16)30 (16)0.11
Vitamin supplement use, n (%)24 (14)27 (16)22 (14)34 (21)0.26
Family history of colorectal cancer, n (%)2 (1.1)1 (0.5)2 (1.1)3 (1.6)0.54
  • * Adjusted for age.

  • Adjusted for sex.

  • Adjusted for sex and age.