The Following Figure Displays Results from a Systematic Review and Meta‐analysis

question 10

Multiple Choice

The following figure displays results from a systematic review and meta‐analysis of the effects of sun exposure on mental health.The RRs represent the association between
Higher sun exposure and good mental health.Studies 1, 2 and 5 are cohort studies, 3 and 4
Are case‐control studies.They are arranged in order of year of publication, earliest first. Which of the following statements are true? (Select all that apply) The summary
Result of the meta‐analysis:

• A)Tells us for certain that sunlight is good for mental health
• B)Is meaningless because of the extreme heterogeneity of the RRs
• C)Is of practical public health importance
• D)Is helpful in assessing whether the relation might be causal
• E)Is statistically significant

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