Clinical Characteristics and Prognosis of Incidentally Detected Lung Cancers

Table 3

Characteristics of patients diagnosed after an incidental finding and patients with symptoms.

	Incidental finding; = 320		Symptomatic patients; = 273
Age (mean, SD)	61.93	9.8	59.51	10.1	0.007
Male (, %)	212	66%	200	73%	0.054
Never smoker	50	15.6%	18	6.6%	0.003
Previous malignancy	41	13%	13	5%	0.002
Pathological staging (, %)
IA	121	37.81	36	13.19	0.0001
IB	71	22.19	52	19.05
IIA	16	5.00	10	3.66
IIB	40	12.50	50	18.32
IIIA	46	14.38	86	31.50
IIIB	15	4.69	24	8.79
IV	11	3.44	15	5.49
Squamous cell	51	16%	63	23.1%	0.031
Adenocarcinoma	214	66.9%	147	53.8%	0.025
Pneumonectomy	10	3.1%	28	11%	0.005
Tumor size >3 cm	149	46.5	200	73%	0.0001
Central tumor location	60	18.75	99	36.20%	0.001
Resection considered curative	288	90%	220	81%	0.007
Postoperative complication rate	57	17.8%	73	26.7%	0.022
ICU stay days (mean, SD)	1.73	3.209	1.44	4.388	0.38
Operative mortality	11	3.6%	17	6.2%	0.355