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Volume 17, Number 2—February 2011

Research

Leptospirosis in Hawaii, USA, 1999–2008

Alan R. KatzComments to Author , Arlene E. Buchholz, Kialani Hinson, Sarah Y. Park, and Paul V. Effler
Author affiliations: Author affiliations: University of Hawaii, Honolulu, Hawaii, USA (A.R. Katz, K. Hinson); Hawaii State Department of Health, Honolulu (A.E. Buchholz, S.Y. Park, P.V. Effler)

Main Article

Table 1

Sex, age, and island of exposure for 198 case-patients with laboratory-confirmed leptospirosis, Hawaii, USA, 1999–2008

Variable No. (%) case-patients Estimated mean annual incidence rate*
Sex
M 181 (91) 2.97
F
17 (9)
0.28
Age group, y
0–9 1 (1) 0.06
10–19 24 (12) 1.46
20–29 48 (24) 2.87
30–39 31 (16) 1.69
40–49 38 (19) 2.05
50–59 36 (18) 2.55
60–69 15 (8) 1.68
70–79
5 (3)
0.64
Island
Hawaii 98 (49) 6.59
Kauai 47 (24) 8.06
Oahu 44 (23) 0.50
Maui 4 (2) 0.34
Molokai 1 (1) 1.38
Unknown 4 (2)

*No. cases/100,000 population. Rate = no. case-patients observed over 10 years for the specified category divided by 10 divided by specified subgroup population estimate from 2000 US Census data (9).

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