Associations of Metabolic Syndrome and Abdominal Obesity with Anion Gap Metabolic Acidosis among US Adults

Visual Abstract Key Points Waist circumference and metabolic syndrome features were associated with greater risk of anion gap metabolic acidosis and its components. Findings were preserved after excluding CKD (eGFR <90 ml/min per 1.73 m2 or urine albumin to creatinine ratio ≥30 mg/g). Clear assoc...

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Vydáno v:Kidney360 Ročník 3; číslo 11; s. 1842 - 1851
Hlavní autoři: Lambert, Douglas C., Kane, Jamie, Slaton, Anthony, Abramowitz, Matthew K.
Médium: Journal Article
Jazyk:angličtina
Vydáno: United States American Society of Nephrology 24.11.2022
Témata:
Acid-Base Equilibrium
Acidosis - epidemiology
Adult
Bicarbonates
Humans
Metabolic Syndrome - epidemiology
Nutrition Surveys
Obesity, Abdominal - epidemiology
Original Investigation
Renal Insufficiency, Chronic - epidemiology
metabolic syndrome
acid-base equilibrium
metabolic acidosis
anion gap
acid/base and electrolyte disorders
abdominal obesity
waist circumference
obesity
ISSN:2641-7650, 2641-7650
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Shrnutí:Visual Abstract Key Points Waist circumference and metabolic syndrome features were associated with greater risk of anion gap metabolic acidosis and its components. Findings were preserved after excluding CKD (eGFR <90 ml/min per 1.73 m2 or urine albumin to creatinine ratio ≥30 mg/g). Clear associations were evident for anion gap metabolic acidosis, but not for nonanion gap metabolic acidosis. Background Obesity is a recently identified risk factor for metabolic acidosis and anion gap elevations in the absence of CKD. Metabolic acidosis is a treatable condition with substantial adverse effects on human health. Additional investigations are needed to characterize at-risk populations and explore potential mechanisms. We hypothesized metabolic syndrome (MetS) and waist circumference (WC) would be closely associated with this pathology. Methods Adult participants from NHANES 1999-2018 meeting study criteria were compiled as main (n=31,163) and fasting (n=12,860) cohorts. Regression models adjusted for dietary acid, eGFR, and other factors examined associations of WC and MetS features with anion gap metabolic acidosis and its components (serum bicarbonate ≤23 mEq/L and anion gap >95th percentile). Results Greater WC and MetS features were associated with progressively lower bicarbonate, higher anion gap, and greater odds ratios (OR) of metabolic acidosis (MA) and anion gap metabolic acidosis (AGMA). Compared with the reference, participants with the highest WC had ORs for MA and AGMA of 2.26; 95% CI, 1.96 to 2.62 and 2.89; 95% CI, 1.97 to 4.21; those with three and four versus zero MetS features had ORs for AGMA of 2.52; 95% CI, 1.95 to 2.94 and 3.05; 95% CI, 2.16 to 3.82. Associations of body mass index with outcomes were attenuated or absent after adjustment for WC or MetS. Findings were preserved after excluding eGFR <90 ml/min per 1.73 m2 and albuminuria. A lower MA cutoff (<22 mEq/L) raised the estimate of association between MetS and MA (OR for three and four vs zero features: 3.56; 95% CI, 2.53 to 5.02 and 5.44; 95% CI, 3.66 to 8.08). Conclusions Metabolic diseases are characterized by metabolic acidosis and anion gap elevations. Metabolic dysfunction may predispose patients without CKD to systemic acidosis from endogenous sources. Comprehensive acid-base analyses may be informative in patients with metabolic diseases.
Bibliografie:Correspondence: D. Lambert, MD, MPH, Irving Goldman Family Care Center, 865 Northern Boulevard, Suite 102, Great Neck, NY 11021. Email: dlambert1@northwell.edu
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ISSN:2641-7650
2641-7650
DOI:10.34067/KID.0002402022