Table 1.

Patient characteristics

Characteristics	Group A (n=20)	Group B (n=20)	P
Sex
Male, n(%)	19 (95.0)	17 (85.0)	0.605
Age (years)	29.70 (20-34)	31.60 (19-42)	0.748
Chest tube duration (h)	72.50 (53.38-91.38)	86.15 (47.0-93.63)	0.406
Length of stay (days)	4.00 (3.00-4.75)	4.35 (3.00-5.75)	0.624
Operative time (min), mean±SD	43.50±21.03	48.50±25.08	0.499
Laterality, n (%)
Left	10 (50.0)	9 (45.0)	0.752
Diagnosis, n (%)
Pneumothorax	19 (95.0)	18 (90.0)	-
Metastasis	-	1 (5.00)	-
Benign disease	1 (5.00)	1 (5.00)	-

*Values in parentheses are interquartile range or %. SD=Standard deviation