Volume 17, Number 7—July 2011
Research
Epidemiology and Control of Legionellosis, Singapore
Meng Chon Lam
, Li Wei Ang, Ai Ling Tan, Lyn James, and Kee Tai Goh
, Li Wei Ang, Ai Ling Tan, Lyn James, and Kee Tai GohTable 2
Age and sex distribution, age-specific incidence, number of deaths, and CFRs among 271 case-patients with indigenous or imported legionellosis, Singapore, 2000–2009*
| Age group, y | M | F | Total | Mean incidence† | No. deaths | CFR, % |
|---|---|---|---|---|---|---|
| 0–4 | 1 | 0 | 1 | 0.05 | 0 | 0 |
| 5–14 | 1 | 0 | 1 | 0.02 | 0 | 0 |
| 15–24 | 7 | 1 | 8 | 0.13 | 0 | 0 |
| 25–34 | 11 | 6 | 17 | 0.20 | 0 | 0 |
| 35–44 | 19 | 8 | 27 | 0.36 | 1 | 3.7 |
| 45–54 | 24 | 12 | 36 | 0.61 | 0 | 0 |
| 55–64 | 27 | 18 | 45 | 1.38 | 2 | 4.4 |
| 65–74 | 37 | 33 | 70 | 3.73 | 1 | 1.4 |
| 75–84 | 28 | 25 | 53 | 6.66 | 2 | 3.8 |
| >85 |
3 |
10 |
13 |
5.83 |
0 |
0 |
| Total | 158 | 113 | 271 | 0.65 | 6 | 2.2 |
*Four tourists and 48 foreigners seeking medical treatment in Singapore were excluded. CFR, case-fatality rate.
†Per 100,000 population. Based on estimated mid-year population of 2004.
