Volume 12, Number 1—January 2006
Dispatch
Influenza, Winter Olympiad, 2002
Table 2
Characteristic | Influenza A or B | Noninfluenza | Odds ratio (95% CI*), p adjusted |
---|---|---|---|
No. patients treated | 36 | 152 | |
Accreditation (%) | |||
Organizing committee volunteers and staff | 14 (39) | 69 (45) | Reference |
Athletes | 13 (36) | 33 (22) | 2 (0.8–4.6), p = 0.1† |
Law enforcement personnel | 4 (11) | 26 (17) | 1.3 (0.2–2.5), p = 0.7 |
Olympic family | 5 (14) | 24 (16) | 1 (0.3–3.2), p = 0.9 |
Age, y, mean (standard deviation [SD]) | 32 (10) | 35 (13) | 0.7 (0.4–1.0), p = 0.08‡ |
Sex, male % | 78 | 56 | 5.5 (1.6–18.3), p = 0.006 |
Symptom duration, mean/median days (SD) | 2.9/2 (3.5) | 3.7/2 (5) | 2.0 (0.7–5.8), p = 0.2§ |
History of influenza vaccination (%) | 7 (19) | 37 (24) | 1.7 (0.5–1.6), p = 0.4 |
Temperature >37.8ºC (%) | 14 (39) | 7 (5) | 13 (4.7–36), p<0.001 |
Symptoms (%) | |||
History of fever | 22 (61) | 40 (26) | 1.2 (0.4–3.7), p = 0.8 |
Cough | 33 (92) | 90 (59) | 25.7 (2.2–155), p<0.001 |
Chills | 20 (56) | 33 (22) | 3.9 (1.2–12.8), p = 0.02 |
Myalgia | 23 (64) | 57 (38) | 2.1 (0.7–6.4), p = 0.2 |
Sore throat | 22 (61) | 110 (72) | 0.4 (0.1–1.4), p = 0.2 |
*CI, confidence interval.
†Athletes are a significant group when influenza A cases alone are considered, odds ratio 3, 95% CI (1.1–7.5) p = 0.03.
‡Age as grouped by decade.
§Symptom duration was grouped as <48 h or >48 h.
Medline reports the first author should be "Dunn JJ" not "Dunn J" in reference 9 "Dunn, 2003".
Reference has only first page number. Please provide the last page number if article is longer than one page. (in reference 10 "Ross, Swain, Thomas, 2001").
Reference has only first page number. Please provide the last page number if article is longer than one page. (in reference 11 "Tarrant, Challis, 1988").
Medline indexes "Wkly Epidemiol Rec" but cannot find a listing for reference 12 "World Health Organization, 2000". Please check the reference for accuracy.
Reference has only first page number. Please provide the last page number if article is longer than one page. (in reference 12 "World Health Organization, 2000").