Clinical characteristics of the study participants.

Platelet count was the quantitative variable with normal distribution and was given as means ± standard deviation.Data was given as medians (interquartile range) for the quantitative variables with non-normal distribution.Seven variables (platelet count, HOMA-B, HOMA-IR, AUC of insulin, total cholesterol, triacylglycerol and HDL-cholesterol) were log-transformed to approximate normal distributions and were analyzed by student's t test. The other variables in table 1 were analyzed using the nonparametric tests.