Laboratory analysis
FBS was calculated with a Cobas MIRA analyzer (Roche Diagnostic, Basel, Switzerland) by an enzymatic process (Pars Azmon Co., Tehran, Iran). The sensitivity of the assays for FBS was 5 mg/dL. hs-CRP was calculated by using the turbidimetric method the Pars Azmoon kit (Pars Azmoon Inc., Tehran, Iran) on Hitachi 917. The sensitivity of the assays for hs-CRP was 0.1 mg/L.