title: No association between impaired glucose metabolism and osteoarthritis.
abstract: To investigate the association between markers of glucose metabolism and hand and knee osteoarthritis (OA).
  
  
  
  This is a cross-sectional analysis of baseline measurements of the Netherlands Epidemiology of Obesity (NEO) study, a population-based prospective cohort study. Fasting glucose, insulin and glycated hemoglobulin A1c (HbA1c) concentrations were measured, Homeostasis Model Assessment for Insulin Resistance (HOMA-IR) was calculated and clinical OA was defined following the American College of Rheumatology (ACR) criteria. After exclusion of participants on glucose-lowering drugs, odds ratios (ORs) with 95% confidence intervals (CIs) for either hand, knee or both hand and knee OA were calculated (no OA as reference), as a function of each marker of glucose metabolism, with logistic regression analyses. Models were adjusted for age, ethnicity, education, height, weight and total body fat, and stratified by sex.
  
  
  
  In 6197 participants (age 45-65 years, 56% women, mean body mass index (BMI) 26 kg/m(2)), prevalences of hand OA, knee OA or both were 7%, 10% or 4%, respectively. In men, the adjusted OR (95%CI) for hand OA was 1.18 (1.01-1.39) per standard deviation (SD) increase in plasma glucose (0.85 mmol/L). There were no further associations of glucose, HbA1c, insulin and HOMA-IR with the different types of OA, neither in men nor in women.
  
  
  
  An impaired glucose metabolism does not seem be related to OA. In men, an association was observed for fasting glucose concentrations and hand OA. Future studies should investigate the presence of sex differences in the pathogenesis of hand OA.
authors.affiliation: Department of Rheumatology, Leiden University Medical Center, C1-R, P.O. Box 9600, Leiden 2300 RC, The Netherlands. Electronic address: estella.garessus@gmx.ch.
authors.forename: E D G
authors.initials: ED
authors.lastname: Garessus
authors.affiliation: Department of Clinical Epidemiology, Leiden University Medical Center, C7-P, P.O. Box 9600, Leiden 2300 RC, The Netherlands. Electronic address: r.mutsert@lumc.nl.
authors.forename: R
authors.initials: R
authors.lastname: de Mutsert
authors.affiliation: Department of Rheumatology, Leiden University Medical Center, C1-R, P.O. Box 9600, Leiden 2300 RC, The Netherlands. Electronic address: a.w.visser@lumc.nl.
authors.forename: A W
authors.initials: AW
authors.lastname: Visser
authors.affiliation: Department of Clinical Epidemiology, Leiden University Medical Center, C7-P, P.O. Box 9600, Leiden 2300 RC, The Netherlands; Department of Thrombosis and Hemostasis, Leiden University Medical Center, C7-P, P.O. Box 9600, Leiden 2300 RC, The Netherlands. Electronic address: f.r.rosendaal@lumc.nl.
authors.forename: F R
authors.initials: FR
authors.lastname: Rosendaal
authors.affiliation: Department of Rheumatology, Leiden University Medical Center, C1-R, P.O. Box 9600, Leiden 2300 RC, The Netherlands; Department of Clinical Epidemiology, Leiden University Medical Center, C7-P, P.O. Box 9600, Leiden 2300 RC, The Netherlands. Electronic address: g.kloppenburg@lumc.nl.
authors.forename: M
authors.initials: M
authors.lastname: Kloppenburg
mesh_terms: D000368:Aged; D015992:Body Mass Index; D003430:Cross-Sectional Studies; D005260:Female; D005947:Glucose; D006801:Humans; D008297:Male; D008875:Middle Aged; D009426:Netherlands; D010003:Osteoarthritis; D011446:Prospective Studies
chemical_list: D005947:Glucose
keywords: Epidemiology; Glucose; HbA1c; Insulin; Obesity; Osteoarthritis