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Institutional risk factors for norovirus outbreaks in Hong Kong elderly homes: a retrospective cohort study.
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- المؤلفون: Lin H;Lin H; Ng S; Chan S; Chan WM; Lee KC; Ho SC; Tian L
- المصدر:
BMC public health [BMC Public Health] 2011 May 11; Vol. 11, pp. 297. Date of Electronic Publication: 2011 May 11.
- نوع النشر :
Journal Article; Research Support, Non-U.S. Gov't
- اللغة:
English
- معلومة اضافية
- المصدر:
Publisher: BioMed Central Country of Publication: England NLM ID: 100968562 Publication Model: Electronic Cited Medium: Internet ISSN: 1471-2458 (Electronic) Linking ISSN: 14712458 NLM ISO Abbreviation: BMC Public Health Subsets: MEDLINE
- بيانات النشر:
Original Publication: London : BioMed Central, [2001-
- الموضوع:
- نبذة مختصرة :
Background: Most of the institutional outbreaks of norovirus in Hong Kong occur in elderly homes, the proportion being 69% in 2006. Residents in elderly homes are a special population seriously affected by norovirus infections, it is necessary to investigate the risk factors of the norovirus outbreaks in Hong Kong elderly homes at the facility level.
Methods: A cohort of 748 elderly homes was followed up from January 2005 to December 2007; each elderly home was treated as one observation unit and the outcome event was the norovirus outbreak. Cox regression models were fitted to estimate the rate ratio (RR) and 95% confidence interval (CI) for the potential risk factors.
Results: A total of 276 norovirus outbreaks were confirmed during the study period; the outbreak rate was 12.2 (95% CI: 9.9-14.6) per 100 home-years; elderly homes with a larger capacity (RR = 1.4, 95% CI: 1.3-1.5 (per 30-resident increment)), a higher staff-to-resident ratio (RR = 1.2, 95% CI: 1.1-1.3 (per 1/30 increment) and better wheelchair accessibility (RR = 2.0, 95% CI: 1.3-3.2) were found to have an elevated norovirus outbreak rate in Hong Kong elderly homes; Elderly homes with partitions between beds had a lower rate of norovirus outbreaks (RR = 0.6, 95% CI: 0.4-0.8).
Conclusions: Elderly home capacity, staff-to-resident ratio and wheelchair accessibility were risk factors for norovirus outbreaks in Hong Kong elderly homes. Partitions between beds were a protective factor of norovirus outbreaks. These results should be considered in the infection control in Hong Kong elderly homes.
- References:
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- الموضوع:
Date Created: 20110517 Date Completed: 20111026 Latest Revision: 20211020
- الموضوع:
20240628
- الرقم المعرف:
PMC3103461
- الرقم المعرف:
10.1186/1471-2458-11-297
- الرقم المعرف:
21569308
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