Consideration of self-protection (rather than absolute disease risk or protection of patients) appears the strongest and most consistent driver of healthcare workers' decisions to accept vaccination, though other factors may also be impactful, and reasons for between-study divergence in effects is an important area for future research. This finding has important implications for the design of programs to enhance healthcare worker vaccine uptake.
We performed a systematic review and meta-analysis of cervical cancer risk in indigenous women in Australia, Canada, New Zealand, and the United States, in order to identify whether risks of cervical dysplasia, cervical cancer, and cervical cancer-related mortality are higher in indigenous relative to non-indigenous populations. We identified 35 studies published in 1969-2008. In our findings, indigenous populations did not have an elevated risk of cervical dysplasia or carcinoma in situ relative to non-indigenous populations, but had elevated risks of invasive cervical cancer (pooled RR=1.72) and cervical cancer-related mortality (pooled RR=3.45). There was a log-linear relationship between relative risk and disease stage. In conclusion, the indigenous women have a markedly higher risk of cervical cancer morbidity and mortality than non-indigenous women, but no increased risk of early-stage disease, suggesting that structural, social, or individual barriers to screening, rather than baseline risk factors, are influencing poor health outcomes.
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