| http://www.w3.org/ns/prov#value | - When we were able to calculate hazard ratios, we assumed that a hazard ratio between 0.8 and 1.2 with a narrow confidence interval that also crossed 1.0 suggested no clinically significant difference between treatment strategies; in such cases, we describe the treatment strategies being compared as having ???comparable efficacy.??? For some outcomes, study quality or other factors affected compara
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