Fig. 1
From: Relationships of serum CC16 levels with smoking status and lung function in COPD
Serum CC16 levels are inversely associated with COPD. A Bar graph depicts the median and interquartile range (IQR) of serum CC16 levels (ng/mL) by COPD status (N = 351). Cases had significantly lower levels of CC16 as compared to controls (never smokers) (t-test using log CC16, p = 0.002). B Odds ratio plot displays the unadjusted and model-adjusted association (odds ratios and 95% confidence intervals) between log CC16 level and COPD vs control (never smokers). Multivariable logistic regression model was adjusted for age, assay plate number, and BMI. Odds of COPD decreased as serum CC16 level (log scale) increased (ORadj = 0.36, 95% CI 0.22–0.57) Padj < 0.0001 (N = 351)