GSTM1 and renal cell carcinoma: The mean ± SD (Hb) for diagnosing more than two bone lesions was <9.8±1.25 (p=0.01), while the same for ESR was 94±6.50 AEFH (p=.03).Additionally, multivariate logistic regression analysis indicated that in more than two bony metastatic sites ALP, CRP, ESR and Hb were the independent risk factors for predicting skeletal-related events in patients with bone metastases with RCC.