Malnutrition-inflammation modifies the relationship of cholesterol with cardiovascular disease

J Am Soc Nephrol. 2010 Dec;21(12):2131-42. doi: 10.1681/ASN.2009121285. Epub 2010 Sep 23.

Abstract

In moderate and severe CKD, the association of cholesterol with subsequent cardiovascular disease (CVD) is weak. We examined whether malnutrition or inflammation (M-I) modifies the risk relationship between cholesterol levels and CVD events in African Americans with hypertensive CKD and a GFR between 20 and 65 ml/min per 1.73 m². We stratified 990 participants by the presence or absence of M-I, defined as body mass index <23 kg/m² or C-reactive protein >10 mg/L at baseline. The primary composite outcome included cardiovascular death or first hospitalization for coronary artery disease, stroke, or congestive heart failure occurring during a median follow-up of 77 months. Baseline total cholesterol (212 ± 48 versus 212 ± 44 mg/dl) and overall incidence of the primary CVD outcome (19 versus 21%) were similar in participants with (n = 304) and without (n = 686) M-I. In adjusted analyses, the CVD composite outcome exhibited a significantly stronger relationship with total cholesterol for participants without M-I than for participants with M-I at baseline (P < 0.02). In the non-M-I group, the cholesterol-adjusted hazard ratio (HR) for CVD increased progressively across cholesterol levels: HR = 1.19 [95% CI; 0.77, 1.84] and 2.18 [1.43, 3.33] in participants with cholesterol 200 to 239 and ≥240 mg/dl, respectively (reference: cholesterol <200). In the M-I group, the corresponding HRs did not vary significantly by cholesterol level. In conclusion, the presence of M-I modifies the risk relationship between cholesterol level and CVD in African Americans with hypertensive CKD.

Publication types

  • Comparative Study
  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Black or African American / statistics & numerical data
  • Cardiovascular Diseases / blood
  • Cardiovascular Diseases / diagnosis
  • Cardiovascular Diseases / epidemiology*
  • Causality
  • Cholesterol / blood*
  • Cohort Studies
  • Comorbidity
  • Female
  • Glomerular Filtration Rate
  • Humans
  • Hypertension / diagnosis
  • Hypertension / epidemiology
  • Incidence
  • Inflammation / diagnosis
  • Inflammation / epidemiology*
  • Kidney Failure, Chronic / diagnosis
  • Kidney Failure, Chronic / epidemiology*
  • Male
  • Malnutrition / diagnosis
  • Malnutrition / epidemiology*
  • Middle Aged
  • Prognosis
  • Proportional Hazards Models
  • Risk Assessment
  • Severity of Illness Index
  • Survival Analysis

Substances

  • Cholesterol