OBJECTIVES: To evaluate the effect of staff influenza vaccination on all-cause mortality in nursing home residents. DESIGN: Pair-matched cluster-randomized trial. SETTING:Forty nursing homes matched for size, staff vaccination coverage during the previous season, and resident disability index. PARTICIPANTS: All persons aged 60 and older residing in the nursing homes. INTERVENTION: Influenza vaccine was administered to volunteer staff after a face-to-face interview. No intervention took place in control nursing homes. MEASUREMENTS: The primary endpoint was total mortality rate in residents from 2 weeks before to 2 weeks after the influenza epidemic in the community. Secondary endpoints were rates of hospitalization and influenza-like illness (ILI) in residents and sick leave from work in staff. RESULTS:Staff influenza vaccination rates were 69.9% in the vaccination arm versus 31.8% in the control arm. Primary unadjusted analysis did not show significantly lower mortality in residents in the vaccination arm (odds ratio=0.86, P=.08), although multivariate-adjusted analysis showed 20% lower mortality (P=.02), and a strong correlation was observed between staff vaccination coverage and all-cause mortality in residents (correlation coefficient=-0.42, P=.007). In the vaccination arm, significantly lower resident hospitalization rates were not observed, but ILI in residents was 31% lower (P=.007), and sick leave from work in staff was 42% lower (P=.03). CONCLUSION: These results support influenza vaccination of staff caring for institutionalized elderly people.
RCT Entities:
OBJECTIVES: To evaluate the effect of staff influenza vaccination on all-cause mortality in nursing home residents. DESIGN: Pair-matched cluster-randomized trial. SETTING: Forty nursing homes matched for size, staff vaccination coverage during the previous season, and resident disability index. PARTICIPANTS: All persons aged 60 and older residing in the nursing homes. INTERVENTION: Influenza vaccine was administered to volunteer staff after a face-to-face interview. No intervention took place in control nursing homes. MEASUREMENTS: The primary endpoint was total mortality rate in residents from 2 weeks before to 2 weeks after the influenza epidemic in the community. Secondary endpoints were rates of hospitalization and influenza-like illness (ILI) in residents and sick leave from work in staff. RESULTS: Staff influenza vaccination rates were 69.9% in the vaccination arm versus 31.8% in the control arm. Primary unadjusted analysis did not show significantly lower mortality in residents in the vaccination arm (odds ratio=0.86, P=.08), although multivariate-adjusted analysis showed 20% lower mortality (P=.02), and a strong correlation was observed between staff vaccination coverage and all-cause mortality in residents (correlation coefficient=-0.42, P=.007). In the vaccination arm, significantly lower resident hospitalization rates were not observed, but ILI in residents was 31% lower (P=.007), and sick leave from work in staff was 42% lower (P=.03). CONCLUSION: These results support influenza vaccination of staff caring for institutionalized elderly people.
Authors: Andrea Gruneir; Jeff C Kwong; Michael A Campitelli; Alice Newman; Geoffrey M Anderson; Paula A Rochon; Vincent Mor Journal: Am J Public Health Date: 2013-12-12 Impact factor: 9.308
Authors: Elizabeth Bryce; Joanne Embree; Gerald Evans; Lynn Johnston; Kevin Katz; Allison McGeer; Dorothy Moore; Virginia Roth; Andrew Simor; Kathryn Suh; Mary Vearncombe Journal: Can J Infect Dis Med Microbiol Date: 2012 Impact factor: 2.471
Authors: Timothy M Uyeki; Henry H Bernstein; John S Bradley; Janet A Englund; Thomas M File; Alicia M Fry; Stefan Gravenstein; Frederick G Hayden; Scott A Harper; Jon Mark Hirshon; Michael G Ison; B Lynn Johnston; Shandra L Knight; Allison McGeer; Laura E Riley; Cameron R Wolfe; Paul E Alexander; Andrew T Pavia Journal: Clin Infect Dis Date: 2019-03-05 Impact factor: 9.079
Authors: Jan E Patterson; Jose Cadena; Teresa Prigmore; Jason Bowling; Beth Ann Ayala; Leni Kirkman; Amruta Parekh; Theresa Scepanski Journal: Trans Am Clin Climatol Assoc Date: 2011