Volume 30, Number 3—March 2024
Research
Geographic Variation and Environmental Predictors of Nontuberculous Mycobacteria in Laboratory Surveillance, Virginia, USA, 2021–20231
Brendan Mullen, Eric R. Houpt, Josh Colston, Lea Becker, Sharon Johnson, Laura Young, Jasie Hearn, Joe Falkinham, and Scott K. Heysell
Table 1
Demographic characteristics of case-patients with MAC and Mycobacterium abscessus, by isolate, Virginia, USA, 2021–2023*
| Variable | All | MAC isolates | M. abscessus isolates | p value† |
|---|---|---|---|---|
| Total |
864 |
714 |
150 |
|
| Age, median, y (IQR) |
69 (51–87) |
69 (52–86) |
64 (35–97) |
<0.001 |
| Age group, y |
||||
| 0–18 |
18 (2.1) |
14 (2.0) |
4 (2.7) |
|
| 18–64 |
312 (36.1) |
240 (33.6) |
72 (48.8) |
|
| ≥65 |
534 (61.8) |
460 (64.4) |
74 (49.3) |
|
| Sex |
||||
| F |
497 (57.5) |
412 (57.7) |
85 (56.7) |
0.934 |
| M | 366 (42.4) | 302 (42.3) | 65 (42.7) |
*Values are no. (%) except as indicated. MAC, Mycobacterium avium complex; IQR, interquartile range †p values given for differences in median age and differences in sex distribution between MAC isolates by Mann-Whitney U and M. abscessus by χ2 tests.
1Preliminary results from this study were presented at the Union-North America Region (NAR) conference, February 22–25, 2023, Vancouver, British Columbia, Canada.
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