CRP and chronic kidney disease: There were also trends toward significance for smoking (OR (95% CI): 4.79 (0.92–24.92), p = 0.062), chronic kidney disease (OR (95% CI): 6.00 (0.85–42.26), p = 0.072) and CRP levels (OR (95% CI): 1.02 (1.00–1.04), p = 0.055) in univariate analysis.