Volume 17, Number 2—February 2011
Research
Leptospirosis in Hawaii, USA, 1999–2008
Alan R. Katz
, Arlene E. Buchholz, Kialani Hinson, Sarah Y. Park, and Paul V. Effler
, Arlene E. Buchholz, Kialani Hinson, Sarah Y. Park, and Paul V. EfflerTable 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).
