Linear regression coefficients for the association between S-TC and consumption of filtered coffee, by sex and according to complete case or missing indicator method. The Tromsø Study 2015–2016
| Cups of coffee per day | N | Complete case β (95% CI) | N | Missing indicator method β (95% CI) |
| Women | ||||
| 0 | 2537 | 0 (reference) | 2585 | 0 (reference) |
| 1–2 | 1537 | 0.04 (–0.03 to 0.10) | 2156 | 0.03 (–0.03 to 0.09) |
| 3–5 | 2410 | 0.08 (0.02 to 0.14) | 3256 | 0.07 (0.01 to 0.13) |
| ≥6 | 683 | 0.15 (0.5 to 0.24) | 913 | 0.11 (0.03 to 0.19) |
| P linear trend | 0.001 | 0.003 | ||
| Men | ||||
| 0 | 1943 | 0 (reference) | 1980 | 0 (reference) |
| 1–2 | 1189 | −0.1 (–0.09 to 0.06) | 1625 | 0.01 (–0.06 to 0.08) |
| 3–5 | 2424 | 0.04 (–0.03 to 0.11) | 3265 | 0.04 (–0.02 to 0.11) |
| ≥6 | 1166 | 0.07 (–0.02 to 0.15) | 1605 | 0.06 (–0.01 to 0.14) |
| P linear trend | 0.081 | 0.065 | ||
| P interaction* | 0.001 | <0.001 |
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.