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Volume 17, Number 7—July 2011

Research

Epidemiology and Control of Legionellosis, Singapore

Meng Chon LamComments to Author , Li Wei Ang, Ai Ling Tan, Lyn James, and Kee Tai Goh
Author affiliations: Author affiliations: Ministry of Health, Singapore (M.C. Lam, L.W. Ang, L. James, K.T. Goh); Singapore General Hospital, Singapore (A.L.Tan)

Main Article

Table 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.

Main Article

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