Natural air leak test without submergence for spontaneous pneumothorax

Table 1 The relationships between operation method and clinicopathological characteristics

Characteristic	Total	New	%	Classical	p-value
All cases	214	35	16.4	179
Age (years)
< 28	102	19	18.6	83
≥ 28	112	18	16.1	94	0.391
Gender
Male	182	31	17.0	151
Female	32	4	12.5	28	0.523
Smoking
Exist	75	11	14.7	64
None	139	24	17.3	115	0.624
Lesion site
Right	103	20	19.4	83
Left	111	15	13.5	96	0.243
Lesion location
Top	177	28	15.8	149
Other than top	37	7	18.9	30	0.643
Comorbidities
Yes	44	6	13.6	38
No	170	29	17.1	141	0.584
ISP^a
Yes	50	10	20.0	40
No	164	25	15.2	139	0.426
CSP^b
Yes	37	8	21.6	29
No	177	27	15.3	150	0.341
Operation for ISP
Yes	22	5	22.7	17
No	192	30	15.6	162	0.394

^a ISP: ipsilateral spontenious pneumothorax, ^b CSP: contralateral spontenious pneumothorax.

ISSN: 1749-8090