Volume 29, Number 9—September 2023
CME ACTIVITY - Synopsis
Characteristics of Hard Tick Relapsing Fever Caused by Borrelia miyamotoi, United States, 2013–2019
Table 1
Characteristic | Confirmed, n = 166 | Possible, n = 134 | p value |
---|---|---|---|
Median age, y (range)† |
56 (4–86) |
50 (1–86) |
0.03‡ |
Categorical age | |||
<18 | 15/166 (9) | 5/134 (4) | |
18–65 | 95/166 (57) | 101/134 (75) | 0.004 |
>65 |
56/166 (34) |
28/134 (21) |
|
Sex | |||
M | 92/166 (56) | 65/134 (49) | 0.23 |
F |
74/166 (44) |
69/134 (51) |
|
Year of illness onset§ | |||
2013 | 8/165 (5) | 0/132 (0) | |
2014 | 9/165 (5) | 1/132 (1) | |
2015 | 1/165 (1) | 8/132 (6) | |
2016 | 16/165 (10) | 10/132 (8) | <0.0001¶ |
2017 | 56/165 (34) | 22/132 (17) | |
2018 | 38/165 (23) | 44/132 (34) | |
2019 | 37/165 (22) | 46/132 (35) |
*Values are no. positive/no. tested (%) unless indicated otherwise. †Missing information for 25 persons. ‡By Wilcoxon rank-sum test. §Missing information for 4 persons. ¶By Fisher exact test.
Page created: July 06, 2023
Page updated: August 18, 2023
Page reviewed: August 18, 2023
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