Kaplan-Meier method estimates of the risk of venous thromboembolism (VTE) among cancer patients according to sP-selectin levels (75th percentile or higher and lower than the 75th percentile). The probability of VTE was statistically significantly higher among patients with sP-selectin levels more than or equal to the 75th percentile compared with patients with levels less than the 75th percentile (P = .002).