Exercise 4 - Interactive activities

​Epidemiological Study Designs

By Patricia Lee

Instructions

​For each of abstract, try to answer questions a-f:

a.  State the research question(s);

b.  Identify the study factor(s); (exposure)

c.  Identify the outcome factor(s);

d. Identify the actual study type;

e.  State the study type that you think is most feasible;

f.  State the study type you think would give the highest quality evidence for this question.

Abstract 3:  Effects of drinking green tea on cardiovascular and liver diseases

§Objective. To investigate the association between consumption of green tea and various serum markers in a Japanese population, with special reference to preventive effects of green tea against cardiovascular disease and disorders of the liver.

§Setting - Yoshimi, Japan.

§Subjects - 1371 men aged over 40 years resident in Yoshimi and surveyed on their living habits including daily consumption of green tea. Their peripheral blood samples were subjected to several biochemical assays.

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Abstract 3:  Effects of drinking green tea on cardiovascular and liver diseases.

What is the study factor (the exposure)?

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Abstract 3:  Effects of drinking green tea on cardiovascular and liver diseases.

What is/are the outcome factor/s?

Multiple Choice

What is the actual study type?

• Ecological study

• Cross-sectional study

• case-control study

• cohort study

• Intervention/experimental study

Multiple Choice

State the study type that you think is most feasible.

• Ecological study

• Cross-sectional study

• Case-control study

• Cohort study

• Intervention/Experimental study

Multiple Choice

State the study type you think would give the highest quality evidence for this question.

• Ecological study

• Cross-sectional study

• Case-control study

• Cohort study

• Intervention/Experimental study

Abstract 4 Evaluation of a Community Bicycle Helmet Promotion Campaign: What Works and Why?

§Purpose. This study identifies effective components of a bicycle promotion campaign, and mechanisms by which these components affect child helmet ownership.

§Design. A random telephone survey identified parents whose children did not own helmets prior to an educational campaign. A follow-up survey was conducted six months later. Regression analysis estimated the effects of four campaign components on child helmet ownership and tested for mediation by cognitive variables. Setting. Study participants were residents of a suburban community, which undertook a citywide educational campaign to increase child helmet ownership. Subjects. Subjects were 210 parents with at least one school-aged child, none of whom owned helmets.
§Intervention. A multicomponent campaign was implemented by a community coalition. In addition, random subsamples of the study participants received direct mail or direct telephone communications.

§Results....

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Abstract 4: Evaluation of a Community Bicycle Helmet Promotion Campaign: What Works and Why?

What is the study factor (the exposure)?

Word Cloud

Abstract 4: Evaluation of a Community Bicycle Helmet Promotion Campaign: What Works and Why?

What is the outcome factor?

Multiple Choice

What is the actual study type?

• Ecological study

• Cross-sectional study

• case-control study

• cohort study

• Intervention/experimental study

Multiple Choice

State the study type that you think is most feasible.

• Ecological study

• Cross-sectional study

• Case-control study

• Cohort study

• Intervention/Experimental study