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Which results of the NCHS meta-analysis were most controversial? (Choose every correct answer.)
a. Moderately obese people had similar death rates to normal-weight people.
b. Those with severe obesity (BMI greater than 34.9) had a higher death rate from all causes than did people with normal weight.
c. This was one of the findings but it is far from controversial.
d. Overweight people had a lower all-cause death rate than normal weight people.
e. Moderately obese people had similar death rates to normal-weight people.
f. Overweight people had a lower all-cause death rate than normal weight people.

Respuesta :

The results of the NCHS meta-analysis which were most controversial are Moderately obese people had similar death rates to normal-weight people.

A statistical analysis known as a meta-analysis integrates the findings of various scientific investigations. When there are numerous scientific studies that address the same issue and each one reports measures that are anticipated to have some degree of error, meta-analyses can be conducted.

To increase the sample size in a meta-analysis, data from smaller research are not simply pooled. To account for sample size differences, heterogeneity in research design and findings (treatment effects), and to determine how sensitive their findings are to their own systematic review process, analysts employ well-established, systematic methods (study selection and statistical analysis).

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