TABLE 2.

Characteristics of Patients With Cutaneous Nontuberculous Mycobacterial Infection (1980–2009)^a

Characteristic	Valueb
Age at diagnosis (y), mean (median; range)	48.3 (47; 6–92)
Age at diagnosis (y) (n = 40)
0–39	13 (33)
40–59	16 (40)
≥60	11 (28)
Sex (n = 40)
Female	23 (58)
Male	17 (43)
Year of diagnosis (n = 40)
1980–1989	5 (13)
1990–1999	9 (23)
2000–2009	26 (65)
Race/ethnicity (n = 32)
White	31 (97)
American Indian/Alaskan native	1 (3)
Site (n = 39)c
Distal extremity	27 (69)
Forearm	9 (23)
Trunk	5 (13)
Arm	1 (3)
Leg	1 (3)
No. of sites (n = 39)
Single	31 (79)
Multiple	8 (21)
Immunosuppressed (n = 39)
No	30 (77)
Yes	9 (23)
Setting (n = 29)
Traumatic injury	22 (76)
Cosmetic procedure	4 (14)
Surgery	3 (10)
Mycobacterium species (n = 38)
Mycobacterium marinum	17 (45)
Mycobacterium chelonae/Mycobacterium abscessus	12 (32)
Mycobacterium fortuitum/Mycobacterium peregrinum	6 (16)
Mycobacterium avium-intracellulare	1 (3)
Mycobacterium smegmatis	1 (3)
Mycobacterium szulgai	1 (3)
Species (n = 38)
Slow growing	19 (50)
Rapid growing	19 (50)
Clinical presentation (n = 40)d
Subcutaneous abscess	16 (40)
Cellulitis	11 (28)
Wound infection	10 (25)
Dermatitis	3 (8)
Nodules	2 (5)
Inflammation (erythema, swelling)	2 (5)
Erythema	2 (5)
Papule	1 (3)
Pathologic examination (n = 40)
No	22 (55)
Yes	18 (45)
Granulomatous inflammation identified on pathologic examination (n = 18)
No	6 (33)
Yes	12 (67)
Treatment (n = 39)
Antimicrobial drug plus surgery	22 (56)
Antimicrobial drug	17 (44)
Surgical treatment (n = 22)
Patients with single lesions	17 (77)
Patients with multiple lesions	5 (23)
No. of antibiotic drug courses (n = 83)
Monotherapy	32 (39)
Combination therapy	51 (61)

^aValues are presented as No. (percentage) unless indicated otherwise.

^bPercentages may not total to 100% due to rounding.

^cPatients with multiple sites are listed in more than 1 category.

^dSome patients had multiple skin findings.