Multivariate Analysis. Linear Regression of C-Reactive Protein (log10-Transformed) in Relation to Demographics, Lifestyle Factors, and Metabolic Factors
| Factor | Coefficient (SE) | P value |
|---|---|---|
| Sex (male) | ||
| Female | Reference | NA |
| Male | −0.050 (0.035) | .157 |
| Age (years) | 0.002 (0.001) | .087 |
| Alcohol consumption | ||
| Abstainers | Reference | NA |
| Light drinkers | −0.114 (0.036) | .001 |
| Moderate drinkers | −0.090 (0.048) | .061 |
| Heavy drinkers | 0.013 (0.062) | .829 |
| Smoking | ||
| Never smokers | Reference | NA |
| Ex-smokers | −0.029 (0.038) | .445 |
| Current smokers | 0.087 (0.043) | .042 |
| Physical activity | ||
| Low | Reference | NA |
| Moderate | −0.033 (0.035) | .348 |
| High | −0.014 (0.040) | .725 |
| Body mass index (kg/m2) | 0.045 (0.003) | <.001 |
| Metabolic syndrome | ||
| No | Reference | NA |
| Yes | 0.073 (0.042) | .084 |
| Constant (intercept) | −2.178 (0.107) | NA |
CRP, C-reactive protein; NA, not applicable; SE, standard error.
* For the logarithmic transformation, we attributed an arbitrary value of 0.001 mg/dL to patients with undetectable CRP (n = 4).
† All listed covariates were entered into the equation.
‡ Covariates explained 17.4% of the CRP variability (R2, 0.174). The body mass index explained 15.7% of the CRP variability.