PMC full text:
Table 1
Clinical and epidemiologic features of culture-confirmed HGA versus early Lyme disease (erythema migrans)
| Characteristic | No. (%) of patients or other value as indicated | P value | |
|---|---|---|---|
| Culture-confirmed HGA (n = 44) | Lyme disease (n = 62) | ||
| Age (yr [mean ± SD]) | 51.4 ± 15.3 | 50.2 ± 14.7 | 0.269 |
| Male sex | 24 (54.5) | 30 (48.4) | 0.532 |
| History of Lyme disease | 15 (34.1) | 8 (12.9) | 0.009 |
| Tick bite recollection | 23 (52.3) | 19 (30.7) | 0.025 |
| Onset in June, July or August | 36 (81.8) | 56 (90.3) | 0.249 |
| Days of illness to presentation (mean ± SD) | 5.3 ± 4.6 | 9.3 ± 7.5 | <0.001 |
| Median (range) | 4 (1–22) | 7.5 (1–39) | |
| Total no. of symptoms (mean ± SD) | 8.4 ± 3.0 | 6.3 ± 3.7 | 0.003 |
| Median (range) | 9 (1–14) | 6 (1–14) | |
| Fever, sweats, rigors | 39 (88.6) | 26 (47.3) | <0.001 |
| Maximum temp (°C) reported | 39.2 (n = 41) | 37.8 (n = 40) | <0.001 |
| Temp (°C) at presentation | 38.0 | 37.1 | <0.001 |
| Fatigue | 37 (84.1) | 40 (64.5) | 0.026 |
| Headache | 36 (81.8) | 31 (50.0) | <0.001 |
| Arthralgias | 25 (56.8) | 38 (61.3) | 0.644 |
| Myalgias | 33 (75.0) | 29 (46.8) | 0.004 |
| Stiff neck | 20 (45.5) | 30 (48.4) | 0.766 |
| Anorexia | 28 (63.6) | 21 (33.9) | 0.003 |
| Dizziness | 24 (50.6) | 15 (24.2) | 0.001 |
| Memory impairment | 12 (27.3) | 17 (27.4) | 0.987 |
| Paresthesias | 7 (15.9) | 17 (27.4) | 0.163 |
| Cough | 18 (40.9) | 13 (21.0) | 0.026 |
| Abdominal pain | 7 (15.9) | 1 (1.6) | 0.009 |
| Nausea | 14 (31.8) | 12 (19.4) | 0.142 |
| Vomiting | 4 (9.1) | 3 (4.8) | 0.446 |
| Diarrhea | 6 (13.6) | 3 (14.8) | 0.158 |
