A 7-year cohort study involving 1500 Australian adolescents assessed the associa
ID: 3363273 • Letter: A
Question
A 7-year cohort study involving 1500 Australian adolescents assessed the association between frequency of cannabis use and subsequent depression in young adulthood. From the results of the study, shown in the following table, calculate the appropriate measure of effect to determine whether a relationship exists between adolescent cannabis use and subsequent depression. Please select the correct interpretation of these findings below.
Cannabis Use
Number
%
Number of Depression Cases
Person-Years at Risk
None to < 5 times ever
1,108
73.9
25
7,352
5 times ever to less than weekly
236
15.7
9
1,430
1 to 4 times per week
86
5.7
4
472
Daily
70
4.7
3
315
Total
1,500
100.
41
9,569
Question 7 options:
A)
More frequent cannabis use as an adolescent predicted lower likelihoods of experiencing depression as a young adult.
B)
There is insufficient information for understanding this relationship.
C)
More frequent cannabis use as an adolescent predicted higher likelihoods of experiencing depression as a young adult.
D)
There is no effect of cannabis use as an adolescent on depression as a young adult.
Cannabis Use
Number
%
Number of Depression Cases
Person-Years at Risk
None to < 5 times ever
1,108
73.9
25
7,352
5 times ever to less than weekly
236
15.7
9
1,430
1 to 4 times per week
86
5.7
4
472
Daily
70
4.7
3
315
Total
1,500
100.
41
9,569
Explanation / Answer
The correct answer is
More frequent cannabis use as an adolescent predicted lower likelihoods of experiencing depression as a young adult.
More frequent cannabis use as an adolescent predicted lower likelihoods of experiencing depression as a young adult.
THe ratio of people under depression/ total people continuously increases with increased cannabis use.Related Questions
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