Volume 16, Number 2—February 2010
Research
Epidemiology of Cryptococcus gattii, British Columbia, Canada, 1999–2007
Table 1
Characteristics of persons with cases of confirmed or probable Cryptococcus gattii infection, British Columbia, Canada, 1999–2007*
Characteristic | Total | Confirmed | Probable | p value |
---|---|---|---|---|
No. cases | 218 | 124 | 94 | NA |
Average incidence (million/year) | 5.8 | 3.3 | 2.5 | NA |
No. cases in persons living on Vancouver Island |
161 (73.9) |
83 (66.9) |
78 (83.0) |
0.177 |
Demographic data | ||||
Male sex | 121 (55.5) | 73 (58.9) | 48 (51.1) | 0.440 |
Age, y | ||||
Mean | 58.7 | 58.7 | 58.7 | 0.988 |
Range | 2–92 | 2–92 | 12–87 | NA |
Children <18 y |
4 (1.8) |
3 (2.4) |
1 (1.1) |
0.463 |
Clinical assessment | ||||
Respiratory syndrome | 167 (76.6) | 85 (68.5) | 82 (87.2) | 0.031 |
CNS syndrome | 17 (7.8) | 16 (12.9) | 1 (1.1) | 0.001 |
Respiratory and CNS syndrome | 22 (10.1) | 20 (16.1) | 2 (2.1) | <0.001 |
Other/unknown | 12 (5.5) | 3 (2.4) | 9 (9.6) | NA |
Asymptomatic |
16 (7.3) |
6 (4.8) |
10 (11.0) |
0.120 |
Hospitalized | 98 (60.9) | 58 (65.2) | 40 (55.6) | 0.434 |
Immunocompromised | 70 (38.0) | 41 (38.7) | 29 (37.2) | 0.870 |
*Frequencies were calculated by using persons from whom information was available, which varied for each question or data point. All values given as no. (%) persons except as indicated. NA, not available; CNS, central nervous system.
1Members involved in this study were Patrick Doyle, John Galbraith, Linda Hoang, Pamela Kibsey, Min-Kuang Lee, Sultana Mithani, Marc Romney, and Diane Roscoe.