Table 1. Patient Demographics.

Age (years)	20–30	31–40	41–50	51–60	61–70	71–80	81+	Total	Average Age
Male	10	14	75	137	112	35	0	381	57±10.69
Female	6	13	44	80	53	16	1	214	55.4±11.42
Total	16	27	119	217	165	51	1	595	56.42±10.98

Note: A total of 595 consecutive bronchial brushing cases were included in this study with 381 male and 214 female patients.