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Volume 26, Number 5—May 2020
CME ACTIVITY - Research

Blastomycosis in Minnesota, USA, 1999–2018

Malia IrelandComments to Author , Carrie Klumb, Kirk Smith, and Joni Scheftel
Author affiliations: Minnesota Department of Health, St. Paul, Minnesota, USA

Main Article

Table 2

Exposures and associations of interviewed blastomycosis patients, by sex, Minnesota, USA, 1999–2018*

Exposures and associations All cases, no. (%), n = 541 Male patients, no. (%), n = 383 Female patients, no. (%), n = 158 OR (95% CI)† p value†
Outdoor activity 317 (59) 245 (64) 72 (46) 2.1 (1.5–3.1), p<0.001
Hunting 84 (15) 80 (21) 4 (2) 10.5 (3.8–29.2) p<0.001‡
Fishing 161 (30) 134 (35) 27 (17) 2.7 (1.7–4.3) p<0.001
Boating 99 (40) 78 (44) 21 (30) 1.8 (1.0–3.2) p = 0.049
Swimming 59 (27) 47 (29) 12 (21) NS
Camping 87 (16) 66 (17) 21 (13) NS
Hiking
152 (28)
111 (29)
41 (26)
NS

Specific soil exposure 375 (78) 276 (80) 99 (72) 1.6 (1.0–2.5) p = 0.050
ATV use 86 (19) 74 (23) 12 (10) 2.8 (1.5–5.4) p = 0.001
Wood clearing/cutting at home 193 (35) 165 (43) 28 (17) 3.6 (2.3–5.7) p<0.001
Garden 148 (34) 101 (34) 47 (36) NS
Nearby excavation
172 (32)
124 (33)
48 (30)
NS

Visiting a cabin 177 (33) 131 (35) 46 (29) NS
Nearby beaver dams 86 (16) 67 (18) 19 (12) NS
Working in woods§ 97 (21) 88 (26) 9 (7) 4.9 (2.4–10.1) p<0.001
Family member(s) had blastomycosis 22 (4) 11 (3) 11 (7) 0.39 (0.16–0.93) p = 0.029
Owning a dog 283 (53) 197 (52) 86 (54) NS
Owning a dog that had blastomycosis 29 (10) 19 (9) 10 (11) NS

*Denominators may not be same across categories because not all data were available for all patients. ATV, all-terrain vehicle; OR, odds ratio; NS, not significant.
†ORs and p values calculated by using χ2 test, except where indicated.
‡p value calculated by using Fisher exact test.
§Part-time or full-time employment in wooded areas (e.g., construction, landscaping, forestry).

Main Article

Page created: April 16, 2020
Page updated: April 16, 2020
Page reviewed: April 16, 2020
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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