Volume 29, Number 10—October 2023
Research
Comprehensive Case–Control Study of Protective and Risk Factors for Buruli Ulcer, Southeastern Australia
Table
Characteristics | Cases, n = 245 | Controls, n = 481 |
---|---|---|
Age group, y | ||
18–39 | 35 (14) | 38 (8) |
40–59 | 68 (28) | 125 (26) |
60–79 | 123 (50) | 278 (58) |
>80 |
19 (8) |
40 (8) |
Sex | ||
F | 104 (42) | 266 (55) |
M |
141 (58) |
215 (45) |
Employment status† | ||
Employed | 124 (51) | 211 (44) |
Unpaid employment, unemployed | 19 (8) | 18 (4) |
Retired |
100 (41) |
249 (52) |
Notification dates | ||
Summer, Dec–Feb | 26 (11) | NA |
Autumn, Mar–May | 18 (7) | NA |
Winter, Jun–Aug | 107 (44) | NA |
Spring, Sep–Nov |
94 (38) |
NA |
Duration of symptoms before diagnosis, wk | ||
Median (IQR) | 5 (3–12) | NA |
Missing data |
21 (9) |
NA |
Days from notification to questionnaire completion | ||
Median (IQR) |
56 (38–90) |
NA |
Insect bite/wound/injury to area before ulcer developed | ||
Yes | 99 (40) | NA |
No | 42 (17) | NA |
Unsure | 88 (36) | NA |
Missing data |
16 (7) |
NA |
Type of bite/wound/injury in area before ulcer developed, n = 99 | ||
Insect bite | 51 (52) | NA |
Wound/injury | 30 (30) | NA |
Mixed | 6 (6) | NA |
Other, unsure/missing data |
12 (12) |
NA |
Time from wound/bite to ulcer, if yes, n = 87 | ||
Median, weeks (IQR) | 6 (3–13) | NA |
*Values are no. (%) except as indicated. IQR, interquartile range; NA, not applicable. †Unpaid employment included students and persons with home duties.
1These senior authors contributed equally to this article.
Page created: July 19, 2023
Page updated: September 20, 2023
Page reviewed: September 20, 2023
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