Strategies to prevent the development and progression of chronic kidney disease (CKD) are now an important theme in clinical practice due to increased life expectancy. The present study investigated the prevalence of CKD as well as lipid profiles affecting CKD.
In total, 5,169 subjects were eligible for a cross-sectional analysis of baseline data from the Jichi Medical School Cohort Study. We examined CKD subjects with an estimated glomerular filtration rate (eGFR) of 59 (mL/min/1.73m2) or lower and independent factors associated with reductions in eGFR.
The prevalence of CKD was 17.7%. Age, systolic blood pressure, and hyperlipidemia were defined as related factors for CKD. The lowest, second, third, and highest quartile ranges of total cholesterol (TC) and triglycerides (TG) were 0-166, 167–188, 189–212, and 213 mg/dL or higher and 0–71, 72–100, 101–148, and 149 mg/dL or higher, respectively. The odds ratio (OR) of Q2 to Q4 of TC relative to that of Q1 for CKD increased linearly [OR (95%CI): Q2, 1.3 (1.0-1.7); Q3, 1.38 (1.1–1.8); Q4, 1.5 (1.4–2.4)]. The ORs of Q2 and Q3 of TG for CKD did not increase, whereas that of Q4 did [OR (95% CI): Q2, 0.95 (0.7–1.2); Q3, 0.98 (0.8–1.2); Q4, 1.21 (1.0-1.5)].
TC and TG elevations were both independently associated with CKD. The relationship with CKD became stronger as TC increased, and TG was considered to have a threshold of 149 mg/dL. Prospective studies are expected in the future.