Volume 2, Number 3—July 1996
Dispatch
An Outbreak of Spotted Fever Rickettsiosis in U.S. Army Troops Deployed to Botswana
Table
Symptoms of case-patients and non–case-patients during a spotted fever outbreak.
Symptoms | Case–patients; n=32(%) | Non–case-patients; n=107(%) | Risk ratio | 95% Confidence interval |
---|---|---|---|---|
Fever | 19 (59) | 8 (7) | 6.06 | 3.44,10.68 |
Chills | 25 (78) | 6 (6) | 12.44 | 5.96,26.00 |
Headache | 23 (72) | 8 (7) | 8.90 | 4.61,17.21 |
Muscle ache | 26 (81) | 10 (9) | 12.40 | 5.56,27.66 |
Joint pain | 21 (66) | 9 (8) | 6.94 | 3.78,12.73 |
Fatigue | 27 (84) | 6 (6) | 17.35 | 7.26,41.43 |
Lymphadenitis | 27 (84) | 3 (3) | 19.62 | 8.27,46.57 |
Abdominal pain | 9 (28) | 4 (4) | 3.79 | 2.26,6.36 |
Anorexia | 11 (34) | 3 (3) | 4.68 | 2.90,7.53 |
Nausea/vomiting | 13 (41) | 3 (3) | 5.26 | 3.27,8.46 |
Diarrhea | 7 (22) | 21 (20) | 1.11 | 0.54,2.30 |
Cough | 4 (12) | 9 (8) | 1.38 | 0.58,3.33 |
Nasal congestion | 7 (22) | 17 (16) | 1.34 | 0.66,2.74 |
Sore throat | 6 (19) | 16 (15) | 1.23 | 0.57,2.63 |