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Pneumococcal Immunization in Older Adults: Implications for the Long-Term–Care Setting

Published online by Cambridge University Press:  02 January 2015

Mark Loeb ,
Kurt B. Stevenson  and
SHEA Long-Term-Care Committee
Mark Loeb
Affiliation:
Department of Clinical Epidemiology and Biostatistics, McMaster University and Hamilton Regional Laboratory Program, Hamilton, Ontario, Canada
Kurt B. Stevenson*
Affiliation:
Qualis Health, Boise, Idaho Division of Clinical Epidemiology, Department of Medicine, University of Utah School of Medicine, Salt Lake City, Utah
*
Qualis Health, 720 Park Boulevard, Suite 120, Boise, ID 83712-7756
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Abstract

Objectives:

To compare the efficacy of the polysaccharide pneumococcal vaccine in older adults between clinical trial and observational studies and to discuss the implications for long-term–care facilities (LTCFs).

Data Source:

A Medline search (to April 2003).

Study Selection:

All meta-analyses of randomized and quasi-randomized trials of pneumococcal vaccines with placebo or no treatment were sought. All cohort or case–control studies were sought.

Data Synthesis:

Of the 16 individual randomized clinical trials included in the reviews, 8 compared pneumococcal vaccine in individuals 55 years and older individuals. Only one study specifically addressed LTCF residents. Although no significant protective effect of the vaccine in elderly subpopulations was found, on the basis of wide confidence intervals and small subpopulation sample sizes, beneficial effects, particularly for pneumococcal bacteremia, could not be ruled out. Of the individual observational studies, 11 specifically evaluated vaccine efficacy in older adults. Vaccine efficacy was demonstrated in 9 of the 11 studies with no protective effect was shown in 2 studies.

Conclusion:

Although the pooling of clinical trial data does not demonstrate significant efficacy of the pneumococcal polysaccharide vaccine in subgroups of older adults, these subgroup studies lacked power to show significant differences. Observational studies repeatedly demonstrate efficacy in older adults, and the vaccine has been demonstrated to be cost-effective and safe. It is strongly promoted by U.S. and Canadian advisory committees. On the basis of this available evidence, the pneumococcal polysaccharide vaccine should currently be recommended for older adults, especially those who are residents of LTCFs.

Type
SHEA Position Paper
Information
Infection Control & Hospital Epidemiology , Volume 25 , Issue 11 , November 2004 , pp. 985 - 994
Copyright
Copyright © The Society for Healthcare Epidemiology of America 2004

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Footnotes

*

Members of the SHEA Long-Term–Care Committee include Sky Blue, MD; Suzanne Bradley, MD; Kent Crossley, MD; Nelson Gantz, MD; Mark Loeb, MD; Lindsay Nicolle, MD; Rodolfo Quiros, MD; Andrew Simor, MD; Philip Smith, MD; Lynn Steele, MS, CIC; and Kurt Stevenson, MD

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