Volume 26, Number 9—September 2020
Dispatch
Mycobacterial Testing Trends, United States, 2009–20151
Samantha G. Dean, Emily E. Ricotta, Jonathan Fintzi, Yi Ling Lai2, Sameer S. Kadri, Kenneth N. Olivier, Adrian Zelazny, and D. Rebecca Prevots
Table 2
Mixed-effect logistic regressions predicting laboratory testing for acid-fast bacilli and positivity for pathogenic nontuberculous mycobacteria, United States, 2009–2015*
| Variable† | Testing for acid-fast bacilli, OR (95% CI) | Pathogenic nontuberculous mycobacteria positivity, OR (95% CI) |
|---|---|---|
| Sex‡ | ||
| M, age >65 y; ref: F, >65 y | 1.5 (1.4–1.5) | 1.1 (0.9–1.3) |
| M, age <65 y; ref: F, <65 y |
1.7 (1.7–1.8) |
1.8 (1.5–2.1) |
| Sex and age, y | ||
| Age >65 y, M; ref: M, age <65 y | 1.8 (1.7–1.8) | 1.9 (1.6–2.3) |
| Age >65 y, F; ref: F, age <65 y |
2.1 (2.1–2.2) |
3.2 (2.7–3.8) |
| Race/ethnicity | ||
| Asian; ref: white | 1.8 (1.7–1.9) | 2.6 (2.0–3.5) |
| African American; ref: white | 1.0 (1.0–1.0) | 1.0 (0.9–1.2) |
| Hispanic; ref: white |
0.8 (0.7–0.8) |
1.1 (0.7–1.6) |
| Concurrent conditions§ | ||
| Bronchiectasis | 6.7 (6.3–7.2) | 3.0 (2.5–3.6) |
| Chronic obstructive pulmonary disease | 2.7 (2.6–2.8) | 1.8 (1.6–2.1) |
| Cystic fibrosis | 18.4 (16.6–20.3) | 7.7 (4.7–12.5) |
| Lung cancer | 4.5 (4.3–4.7) | 1.3 (1.0–1.7) |
| Rheumatoid arthritis |
1.4 (1.3–1.5) |
0.7 (0.5–1.1) |
| Pulmonary computed tomographic scan or radiograph | 3.3 (3.1–3.5) | 1.5 (1.1–2.2) |
| Teaching facility; ref: nonteaching facility |
1.6 (1.5–1.6) |
1.4 (1.2–1.7) |
| Region | ||
| Midwest; ref: Northeast | 1.1 (1.1–1.1) | 1.5 (1.3–1.8) |
| South; ref: Northeast | 1.7 (1.6–1.7) | 1.7 (1.4–2.0) |
| West; ref: Northeast | 1.7 (1.7–1.8) | 2 (1.5–2.5) |
*OR, odds ratio; ref, referent.
†Model also adjusted for year as a potential confounder.
‡Age and sex odds ratios calculated with interaction term.
§Concurrent conditions were ascertained by codes from the International Classification of Diseases, 9th and 10th Revision. Computed tomographic scans and radiographs were identified through text searching procedure descriptions.
1Preliminary results from this study were presented at the IDWeek Conference; October 2–6, 2019; Washington, DC, USA.
2Current affiliation: Kaiser Permanente, Oakland, California, USA.
Page created: June 15, 2020
Page updated: August 19, 2020
Page reviewed: August 19, 2020
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