Answer:
In 2009, a report by the International Agency for Research on Cancer concluded that there is sufficient evidence (the highest level of evidence under the report’s rating scale) that implementation of smokefree legislation decreases respiratory symptoms in workers.4
In 2009, a report by the International Agency for Research on Cancer concluded that there is strong evidence (the second highest level of evidence under the report’s rating scale) that implementation of smokefree legislation causes a decline in heart disease morbidity.4
In 2010, a report by the Institute of Medicine concluded that there is a causal relationship between smokefree laws and decreases in acute coronary events, although the report was unable to estimate the magnitude of this association.5
In 2010, a Cochrane review of 12 studies found consistent evidence of a reduction in hospital admissions for cardiac events following implementation of smokefree laws.6
In 2010, a meta-analysis of 17 studies of the effect of smokefree laws on acute coronary events reported a pooled estimate of relative risk of 0.90 (95% confidence interval: 0.86 to 0.94) and concluded that a large body of evidence exists supporting a reduction in acute coronary events following the implementation of smokefree laws, with the effect increasing
Explanation:
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