Question Could you show me how to get this answer?What percent of the sample weighs 170 lbs or less? Lower Limit of Wt Class Frequency Cumulative % 150 1 3.45% 160 5 20.69% 170 4 34.48% 180 2 41.38% 190 0 41.38% 200 7 65.52% 210 5 82.76% 220 5 100.00% Looking for a […]
disparities in quality are documented, we lack the tools to reliably estimate what it takes to reduce them. Finally, no convincing evidence exists that improving quality, regardless of disparities considerations, actually generates a positive ROI. Although a recent meta-analysis found evidence of a positive ROI for interventions to improve quality for some diseases, such as […]
Question The following table was presented in an article summarizing a study to compare a new drug to a standard drug and to a placebo. Characteristic New Drug Standard Drug Placebo p Age, years 45.2 (4.8) 44.9 (5.1) 42.8 (4.3) 0.5746 %Female 51% 55% 57% 0.1635 Annual income, $000s 59.5 (14.3) 63.8 (16.9) 58.2(13.6) 0.4635 […]
Question A randomized trial is conducted to evaluate the efficacy of a new cholesterol lowering medication. The primary outcome is incident coronary artery disease. Participants are free of coronary artery disease at the start of the study and randomized to receive either the new medication or a placebo. Participants are followed for a maximum of […]
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