marginal significancep = 0.058
Higher baseline serum EPO concentration associated with increased risk for thromboembolism with a marginal significance (odds ratio [OR] = 1.6, 95% confidence interval [CI] 0.98–2.6, p = 0.058, Table 1 ), adjusting for age, gender, haemoglobin genotype, hydroxyurea therapy, recent blood transfusion and batches of EPO measurement.