Table 3.

Baseline characteristics of 45 patients with MAC lung disease and 23 with M. abscessus complex lung disease

Characteristic	MAC (n=45)	M. abscessus complex (n=23)	P value
Age, years	50 (43–61)	50 (42–55)	0.241
Sex, male	21 (50)	6 (26)	0.101
Type of disease			0.181
Nodular bronchiectatic	21 (47)	16 (70)
Fibrocavitary	21 (47)	7 (30)
Unclassifiable	3 (7)	0
Preoperative sputum examinations
Positive AFB stain	26 (58)	17 (74)	0.192
Positive AFB culture	35 (78)	17 (74)	0.722
Indications of surgery			0.812
Poor response to medical therapy	34 (76)	16 (70)
Remnant destroyed lesions	8 (18)	6 (26)
Massive hemoptysis	3 (7)	1 (4)
Type of resection*			0.292
Pneumonectomy	4 (9)	1 (4)
Completion pneumonectomy	3 (6)	0
Bilobectomy plus segmentectomy	0	1 (4)
Bilobectomy	1 (2)	2 (8)
Lobectomy plus segmentectomy	3 (6)	4 (16)
Lobectomy	26 (55)	15 (60)
Segmentectomy	9 (19)	2 (8)
Wedge resection	1 (2)	0
Surgical approach			0.596
Open thoracotomy	29 (62)	17 (68)
Thoracoscopic approach†	18 (38)	9 (32)
Postoperative complications			0.529
Postoperative mortality	1 (2)	0	1.000
Bronchopleural fistula	2 (4)	3 (13)	0.334
Wound dehiscence	0	3 (13)	0.035
Empyema	1 (2)	2 (9)	0.257
Pneumonia	1 (2)	0	1.000
Vocal cord palsy	1 (2)	0	1.000
Pericarditis	1 (2)	0	1.000
Atrial fibrillation	1 (2)	0	1.000
Sputum culture conversion	39 (87)	16 (70)	0.111

The data are presented as medians and interquartile ranges or as numbers (%).

MAC, Mycobacterium avium complex; TB, tuberculosis; AFB, acid-fast bacilli.

*Forty-five MAC patients underwent 47 operations, and 23 M. abscessus complex patients underwent 25 operations.

^†One patient underwent surgery using the thoracoscopic approach with minithoracotomy.