Table 1.
Characteristic | Lyme disease absent (n=170) | Lyme disease present (n=94) | P value |
---|---|---|---|
N (%) | N (%) | ||
Male gender | 75 (44%) | 65 (69%) | <0.0001 |
Mean age (years) (median/IQ range) | 10.9 (12,7–15) | 9.8 (9.5,7–13) | 0.08 |
Lyme season (present June–November) | 87 (51%) | 91 (97%) | <0.0001 |
Trauma to face/head | 12 (7.1) | 1 (1.1) | 0.036 |
Otitis media | 11 (6.5) | 2 (2.1) | 0.15 |
Fever | 14 (8.2) | 30 (32) | <0.0001 |
Headache | 28 (16) | 48 (51) | <0.0001 |
Systemic symptoms/myalgias | 12 (7.1) | 19 (20) | 0.0024 |
Neck pain | 1 (0.6) | 2 (2.1) | 0.29 |
Arthritis | 1 (0.6) | 5(5.3) | 0.023 |
Prior three year mean Lyme incidence (median, IQ range)in county of residence | 11 (3.9, 2.9–17) (per 100,000) | 19 (20, 13–24) (per 100,000) | <0.0001 |