Table 1.

Clinical and follow-up data of 31 patients with pulmonary mucoepidermoid carcinoma.

Number	Total (n=31)	Low grade (n=25)	High grade (n=6)	P value
Sex (male/female)	23/8	20/5	3/3	0.132
Age	60.77 ± 11.44	60.280 ± 12.337	62.833 ± 6.998	0.632
Location
upper left lung	9 (29%)	7 (28%)	2 (33.3%)	0.382
lower left lung	3 (9.6%)	3 (12%)	0 (0%)
right-sided pleura	1 (3.2%)	1 (4%)	0 (0%)
upper right lung	7 (22.6%)	4 (16%)	3 (50%)
lower right lung	7 (22.6%)	7 (28%)	0 (0%)
middle right lung	5 (16.1%)	4 (16%)	1 (16.7%)
Symptoms
cough	21 (67.7%)	18 (72%)	3 (50%)	0.301
bloody sputum	9 (29%)	6 (66.7%)	3 (50%)	0.208
haemoptysis	5 (16.1%)	4 (16%)	1 (16.7%)	0.968
chest tightness	5 (16.1)	5 (20%)	0 (0%)	0.232
fever	1 (3.2%)	1 (4%)	0 (0%)	0.618
chest pain	6 (19.4%)	4 (16%)	2 (33.3%)	0.335
hoarseness	2 (6.5%)	2 (8%)	0 (0%)	0.474
Smoking history	16 (51/6%)	14 (56%)	3 (50%)	0.791
History of alcoholism	10 (32.3%)	8 (32%)	2 (33.3%)	0.95
Family history of tumours	4 (12.9%)	3 (12%)	1 (16.7%)	0.759
History of allergy	1 (3.2%)	1 (4%)	0 (0%)	0.618
TNM stage
I	10 (32.3%)	9 (36%)	1 (16.7%)	0.359
II	5 (16.1)	5 (20%)	0 (0%)
III	3 (9.6%)	2 (8%)	1 (16.7%)
IV	13 (41.9%)	9 (36%)	4 (66.7%)
Imaging characteristics
Intratubular type	11 (35.5%)	9 (36%)	2 (33.3%)	0.902
Space-occupying lesions	28 (90.3%)	22 (88%)	6 (100%)	0.372
Obstructive atelectasis	11 (35.5%)	10 (40%)	1 (16.7%)	0.283
Prognostic information
Recurrence	4 (22.2%) (n=18)	2 (8%) (n=16)	2 (100%) (n=2)	0.005
Metastasis	12 (100%) (n=12)	10 (32.3%) (n=16)	2 (100%) (n=2)	0.383
Death	9 (29%)	4 (16%)	5 (83.3%)	0.001

Red text means the value is significant.