Fig. 2
Platelet level was associated with all-cause mortality in stroke patients with cancer. A Maximum selected rank statistics (MSRS) calculated an optimal platelet cut-off point of 209 × 109/L with a most significant association with survival rates. B Restricted cubic spline (RCS) curves suggested a positive linear relationship of PLT with survival. Hazard ratios controlled age, gender, race, family income-poverty ratio, educational level, alcohol history, smoke history, hypertension, diabetes, coronary heart disease, HbA1c, BMI, HDL, LDL, total cholesterol, triglyceride, white blood cell, red blood cell, lymphocyte, neutrophil and hemoglobin. P value for nonlinearity > 0.05. C Kaplan–Meier curves of survival rates showed the difference in all-cause mortality of stroke patients with cancer between higher-platelet and lower-platelet groups. PLT, platelet