Role of Pretreatment Hemoglobin-to-Platelet Ratio in Predicting Survival Outcome of Locally Advanced Nasopharyngeal Carcinoma Patients

Table 3

HPR and age as predictors of survival at three years; crude and adjusted HR for confounding variable with .

Variable	Person Time	Failure	Incidence Rate	Hazard Ratio
HPR				1.75	0.003
≤0.362	106479	70	0.00037541
>0.362	122532	46	0.00065741
Age group				1.58	0.075
≥60	23836	18	0.00075516
<60	205175	118	0.00047764
Crude HR
				1.75 (1.2–2.55)
Adjusted HR
+old age				1.82 (1.25–2.65)

Note: HPR: hemoglobin to platelet ratio. HR: Hazard ratio.