Table 3

Linear regression coefficients for the association between S-TC and consumption of boiled/plunger coffee, by sex and according to complete case or missing indicator method. The Tromsø Study 2015–2016

Cups of coffee per dayNComplete case
β (95% CI)
NMissing indicator method
β (95% CI)
Women
 059880 (reference)60830 (reference)
 1–27290.10 (0.02 to 0.17)10660.08 (0.01 to 0.15)
 3–53610.18 (0.07 to 0.29)5660.18 (0.08 to 0.27)
 ≥6890.37 (0.16 to 0.58)1450.30 (0.13 to 0.48)
P linear trend<0.001<0.001
Men
 055700 (reference)55160 (reference)
 1–26560.09 (0.01 to 0.18)10760.11 (0.03 to 0.18)
 3–53390.22 (0.10 to 0.34)5620.25 (0.15 to 0.35)
 ≥61570.31 (0.14 to 0.48)1620.23 (0.08 to 0.38)
P linear trend<0.001<0.001
P interaction*0.520.55
  • Adjusted for age, BMI, daily smoking, physical activity, education, alcohol consumption, diabetes and combined coffee habits.

  • β, regression coefficient, difference in total cholesterol (mmol/L) compared to the reference group of 0 cups per day.

  • *Test for interaction between sex and coffee consumption (as an ordinal variable).

  • BMI, body mass index; S-TC, serum total cholesterol.