equinoxe
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In a study of the relationship between aluminum toxicity and development of dementia. Alzheimer type, the next of kin of 400 patients with the disease and 400 unaffected controls were interviewed about the use of aluminum cookware by patients/controls in the fourth decade of life. Results indicate that the relative risk of the disease in users of aluminum cookware is 2.6 (95% confidence interval of 1.9-3.2). Researchers conclude that aluminum cookware causes dementia. Alzheimer type. Which of the following potential flaws is most likely to invalidate this conclusion?
A. Diagnostic bias
B. Ecologic fallacy
C. Inadequate statistical power
D. Lack of statistical significance
E. Recall bias
==
the next of kin of affected = relatives, that means they don't necessary have the disease - does it? (unless is apo E mutation, inherited Alheimer form)...
I would have gone for A. What do you think?
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| anjushree
Forum Guru
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case-control studies----why RR is given?
ans----then A
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| Chrales
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I go for E:
Alzheimer patients will have quite difficulties to correctly remember how often they used aluminium cookware. Thus there will be a recall-bias.
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| robin082006
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E
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| ed222
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E
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| huyniid
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E. with same explanation
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| dr in trouble
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This is a retrospective study and the most common bias is recall bias.
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| oldschool
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ya but that aint wat they'r askin... its recall bias...
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