A study conducted in 40 US clinical centers beginning in 1993. Enrolled were 10,739 postmenopausal women, aged 50-79 years, with prior hysterectomy, including 23% of minority race/ethnicity.

Women were randomly assigned to receive either 0.625 mg/d of conjugated equine estrogen (CEE) or placebo.

What is the study design?

a) Cross-sectional

b) Cohort

c) Randomized clinical trial

d) Ecological

Question

Biology

Nikolai Warren

4 January, 16:07

A study conducted in 40 US clinical centers beginning in 1993. Enrolled were 10,739 postmenopausal women, aged 50-79 years, with prior hysterectomy, including 23% of minority race/ethnicity.

Women were randomly assigned to receive either 0.625 mg/d of conjugated equine estrogen (CEE) or placebo.

What is the study design?

a) Cross-sectional

b) Cohort

c) Randomized clinical trial

d) Ecological

+4

Answers (1)

Know the Answer?

Clelia · Answer 1

Answer:c) Radomized clinical trials

Explanation:Randomied clinical trial is a study used in scientific experiments in which the participants are divided randomly into group that compare different treatments or interventions.

Here participants are chosen by chance to receive clinical interventions.