Volume 26, Number 8—August 2020
Synopsis
Epidemiology of Legionnaires’ Disease, Hong Kong, China, 2005−2015
Yiu-Hong Leung
, Chau-Kuen Lam, Yung-Yan Cheung, Chi-Wai Chan, and Shuk-Kwan Chuang
, Chau-Kuen Lam, Yung-Yan Cheung, Chi-Wai Chan, and Shuk-Kwan Chuang
Table 1
Bivariate and multivariate analysis of factors associated with severe outcome of Legionnaires’ disease cases, Hong Kong, China, 2005–2015
| Factor | Total, no. (%), n = 288 | Severe, no. (%), n = 124 | Mild, no. (%), n = 164 | Crude odds ratio (95% CI) | Adjusted odds ratio (95% CI) |
|---|---|---|---|---|---|
| Male sex | 248 (86) | 108 (87) | 140 (85) | 1.16 (0.59–2.29) | 1.43 (0.61–3.36) |
| Age >64 y | 140 (49) | 67 (54) | 73 (45) | 1.47 (0.92–2.34) | 1.17 (0.66–2.05) |
| Smoker/former smoker |
173 (61)* |
79 (65) |
94 (58) |
1.38 (0.85–2.25) |
1.55 (0.86–2.78) |
| History of chronic medical illnesses | |||||
| Chronic renal failure/impairment | 46 (16) | 30 (24) | 16 (10) | 2.95 (1.53–5.71) | 4.09 (1.81–9.27) |
| Chronic pulmonary diseases | 22 (8) | 15 (12) | 7 (4) | 3.09 (1.22–7.82) | 3.22 (1.10–9.42) |
| Malignancy | 25 (9) | 15 (12) | 10 (6) | 2.12 (0.92–4.89) | 3.04 (1.17–7.91) |
| Heart diseases | 69 (24) | 40 (32) | 29 (18) | 2.22 (1.28–3.84) | 2.15 (1.12–4.13) |
| Hyperlipidemia | 53 (18) | 13 (11) | 40 (24) | 0.36 (0.19–0.71) | 0.17 (0.08–0.40) |
| Diabetes | 109 (38) | 49 (40) | 60 (37) | 1.13 (0.70–1.83) | 0.94 (0.52–1.69) |
| Hypertension | 161 (56) | 77 (62) | 84 (51) | 1.56 (0.97–2.51) | 1.62 (0.88–2.96) |
| Immunosuppression | 22 (8) | 10 (8) | 12 (7) | 1.11 (0.46–2.66) | 0.75 (0.28–2.00) |
*Information for 4 patients was unknown.
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