Determine caffeine effect on Parkinson’s Disease

Determine caffeine effect on Parkinson’s Disease
A study has been conducted a study to determine if caffeine( 2cups of coffee per day as exposure and 0 cups as no exposure) is associated with Parkinson’s Disease (PD)

The researchers recruited participants with Parkinson’s Disease as case and those without Parkinson’s Disease as control. Interviews were conducted to study the exposure to caffeine. Two hundred and twenty-five patients with Parkinson’s Disease were recruited for the study (100 in the case group and 125 in the control group); 48 in the group with Parkinson’s Disease were exposed to caffeine. Thirty-eight participants in the control group were exposed to caffeine.

  1.  Construct a 2 × 2 table,
  2.  Explore the association between caffeine and Parkinson’s Disease and interpret your results.
  3. Identify 1 type of potential bias in this study design and how can it be avoided or minimized.

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