Impact of pneumococcal conjugate vaccination on otitis media: a systematic review.
Impact of pneumococcal conjugate vaccination on otitis media: a systematic review.
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DOI:
10.1093/cid/cis292
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发表时间:
2012-06
期刊:
影响因子:
--
通讯作者:
Haggard M
中科院分区:
文献类型:
--
作者:
Taylor S;Marchisio P;Vergison A;Harriague J;Hausdorff WP;Haggard M
Reduced rates of consultations for otitis media after introduction of pneumococcal conjugate vaccines (PCVs) have been overinterpreted. This systematic review suggests that PCV is only somewhat modestly effective against all-cause otitis media. Acute otitis media (AOM) is a leading cause of visits to physicians and of antibiotic prescriptions for young children. We systematically reviewed studies on all-cause AOM episodes and physician visits in which impact was attributed to pneumococcal conjugate vaccines, either as efficacy or effectiveness. Of 18 relevant publications found, most used the 7-valent pneumococcal conjugate vaccine (7vCRM). The efficacy of 7vCRM against all-cause AOM episodes or visits was 0%–9% in randomized trials and 17%–23% in nonrandomized trials. In observational database studies, physician visits for AOM were already declining in the 3–5 years before 7vCRM introduction (mean change, −15%; range, +14% to −24%) and continued to decline afterward (mean, −19%; range, +7% to −48%). This vaccine provides some protection against OM, but other factors have also contributed to the recent decline in OM incidence. Future effectiveness studies should thus use better-controlled methods to estimate the true impact of vaccination on AOM.
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