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Table 1 Demographic characteristics of the study population

From: Correlation between Interleukin-17 gene polymorphism and osteoarthritis susceptibility in Han Chinese population

Variables Healthy control (n = 576) Knee osteoarthritis patients (n = 594) P value
Age (mean ± SD) 58.3 ± 9.6 59.5 ± 8.9 0.214
Gender 0.517
Male 174 201  
Female 402 393  
Body mass index (kg/m2) 24.6 ± 3.1 26.2 ± 3.8 0.0478
Smoking
Yes 183 213 0.155
No 393 381  
Drinking 0.790
Yes 69 75  
No 507 519  
IL-17A concentration (x ± S, pg/mL) 2.98 ± 0.14 3.91 ± 0.27 0.0325
IL-17F concentration (x ± S, pg/mL) 104.5 ± 12.6 142.8 ± 14.9 0.0249