Institutional risk factors for norovirus outbreaks in Hong Kong elderly homes: a retrospective cohort study
| العنوان: | Institutional risk factors for norovirus outbreaks in Hong Kong elderly homes: a retrospective cohort study |
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| المؤلفون: | Linwei Tian, Sammy Ng, Hualiang Lin, Shelley Chan, Krystal C.K. Lee, Suzanne C. Ho, Waiman Chan |
| المصدر: | BMC Public Health, Vol 11, Iss 1, p 297 (2011) BMC Public Health |
| بيانات النشر: | BMC, 2011. |
| سنة النشر: | 2011 |
| مصطلحات موضوعية: | Male, Pediatrics, medicine.medical_specialty, Rate ratio, medicine.disease_cause, Residential Facilities, Disease Outbreaks, Cohort Studies, Risk Factors, Environmental health, Epidemiology, Humans, Medicine, Infection control, Aged, Caliciviridae Infections, Retrospective Studies, business.industry, lcsh:Public aspects of medicine, Norovirus, Public Health, Environmental and Occupational Health, Outbreak, Retrospective cohort study, lcsh:RA1-1270, humanities, Cohort, Hong Kong, Female, business, Research Article, Cohort study |
| الوصف: | 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. |
| اللغة: | English |
| تدمد: | 1471-2458 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::664f763073af331acba5caecb6b0c372 http://www.biomedcentral.com/1471-2458/11/297 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....664f763073af331acba5caecb6b0c372 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14712458 |
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