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case-control-study-planner

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Design a structured case-control study framework with explicit source population logic, control selection rules, matching decisions, exposure measurement planning, and bias-control checkpoints.

When to use

• Framing a retrospective case-control design around a clinical outcome
• Deciding between unmatched and matched control strategies
• Designing exposure ascertainment logic
• Identifying major bias risks before protocol drafting
• Converting a vague clinical association idea into a study-type-appropriate design scaffold
• Studying rare outcomes
• Studying long-latency outcomes
• Studying exposures impractical for prospective follow-up

When not to use

• Full manuscript writing
• Statistical code generation
• Causal overclaiming
• Writing a full protocol with all operational details
• Estimating incidence, absolute risk, or prognosis
• Treating odds ratios as risk ratios
• Confusing etiologic exposure research with diagnostic discrimination research

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