Question:
Admission rate bias is also known as which of the following?
Admission rate bias is also known as which of the following?
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Think of the hospital based case control bias driven by patients with multiple diseases being admitted more often.
Updated On: Jun 23, 2026
- Reporting bias
- Response bias
- Berkesonian bias
- None
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The Correct Option is C
Solution and Explanation
Answer: Berkesonian bias.
Step 1: Berkesonian bias (Berkson's bias) is a type of selection bias seen in hospital based case control studies.
Step 2: It arises because people who have two or more diseases have a higher chance of being admitted to hospital than people with only one disease. So when controls are drawn from hospitalized patients, the association between an exposure and the disease gets distorted.
Step 3: Because the distortion is driven by differential rates of hospital admission, Berkesonian bias is also called admission rate bias.
Step 4: The distractors are different: reporting bias relates to how accurately information is reported, and response bias relates to differences between survey responders and non responders. Neither matches the admission rate definition.
Ref: Park's Textbook of Preventive and Social Medicine.
Step 1: Berkesonian bias (Berkson's bias) is a type of selection bias seen in hospital based case control studies.
Step 2: It arises because people who have two or more diseases have a higher chance of being admitted to hospital than people with only one disease. So when controls are drawn from hospitalized patients, the association between an exposure and the disease gets distorted.
Step 3: Because the distortion is driven by differential rates of hospital admission, Berkesonian bias is also called admission rate bias.
Step 4: The distractors are different: reporting bias relates to how accurately information is reported, and response bias relates to differences between survey responders and non responders. Neither matches the admission rate definition.
Ref: Park's Textbook of Preventive and Social Medicine.
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