Identifying the Best Marker Combination in CEA, CA125, CY211, NSE, and SCC for Lung Cancer Screening by Combining ROC Curve and Logistic Regression Analyses: Is It Feasible?

Table 5

Number of individuals grouped according to sex and age.

		Lung cancer	Pneumonia	Healthy
Male	<65	176	119	284
	≥65	234	210	266
Female	<65	130	160	135
	≥65	93	161	95
Total		633	650	780