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Table 1 Characteristics of individuals with self-reported osteoarthritis (OA) compared to individuals without self-reported OAa

From: Association of Metabolic Markers with self-reported osteoarthritis among middle-aged BMI-defined non-obese individuals: a cross-sectional study

Characteristics b Overall sample No Self-Reported OA Self-Reported OA p-valued
  n = 2462 n = 2245 n = 217  
Demographics
 Age (years), mean (SEc) 52.6 (0.3) 52.2 (0.2) 57.3 (0.6) < 0.001
 Females, % (SE) 51 (1.2) 49.0 (0.9) 77.0 (3.5) < 0.001
Metabolic Markers     
Females (n = 1267)     
 Body Fat Percentage, mean (SE) 30.58 (0.3) 30.20 (0.2) 33.90 (0.3) < 0.01
 Body Mass Index (kg/m2), mean (SE) 26.33 (0.5) 26.20(0.4) 27.25(1.0) 0.112
 Waist Circumference (cm), mean (SE) 78.49(0.4) 78.23(0.4) 80.31(0.9) 0.08
 Maximum Weight Change (kg), mean (SE) 19.06(0.4) 18.90(0.5) 20.70 (0.9) 0.12
 Serum Creatinine (μmol/L), mean (SE) 71.6 (0.6) 72.8 (0.5) 67.3 (1.0) < 0.01
 Hypertension/CVDe, % (SE) 3.9 (0.6) 3.8 (0.5) 9.1 (2.1) < 0.01
Males (n = 1195)     
 Body Fat Percentage, mean (SE) 23.67 (0.4) 23.2(0.3) 28.12(0.5) < 0.01
 Body Mass Index (kg/m2), mean (SE) 27.47 (0.6) 27.10 (0.5) 28.90 (1.2) 0.318
 Waist Circumference (cm), mean (SE) 89.53 (0.6) 89.00 (0.5) 93.00 (1.0) < 0.05
 Maximum Weight Change (kg), mean (SE) 16.46 (0.6) 16.30 (0.5) 18.10 (1.1) 0.231
 Serum Creatinine (μmol/L), mean (SE) 80.3 (0.5) 82.4 (0.5) 78.1 (1.0) < 0.01
 Hypertension/CVDe, % (SE) 5.1 (0.7) 4.9 (0.6) 12.4 (2.0) < 0.01
  1. a All results are weighted according to the sample weights of the Canadian Health Measure Survey (CHMS); b Anthropometric, laboratory values, and percentage with comorbidity for patients with and without self-reported OA. c Standard error estimates were generated using 500 bootstrap replications. All statistics were evaluated at α = 0.05. d P-values are used for comparing measures across self-reported OA and non-OA; for categorical variables, p-values were based on an adjusted Pearson chi-squared test for independence, and p-values for continuous variables were based on an adjusted Wald F test. e Maximum Weight Change as an adult from 18-years-old; fHypertension/CVD: Self-reported hypertension or Cardiovascular Disease