Describe at least one types of bias that might have occurred

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Explain: You enrolled 6,500 men in your study in 2005 and followed them for 10 years. Liver cancer is your outcome; none of the men had liver cancer at the start of the study. The men were asked in 2005, "In the past 15 years (since 1990), have you consumed 14 or more drinks on average per week?" (A heavy drinker is defined as someone who drinks 14 or more drinks per week.) Of the 1800 men who answered YES, 56 were diagnosed with liver cancer during the 10-year study period. Of those who answered NO, 63 had liver cancer diagnosed during the 10-year period. (Nobody died or was lost to follow up during the study period.) We would want to think about internal validity and the possibility of systematic error. Describe at least one types of bias that might have occurred occur when conducting this study. Be specific as to how it would apply in this study. How might the researchers minimize the bias?

Reference no: EM133805577

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