Screening Principles & UK Programmes

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Wilson & Jungner criteria (condition, test, treatment, programme) — list them. Lead-time bias, length-time bias, overdiagnosis, selection/healthy-screenee bias. Sensitive tests preferred for screening (minimise FN). Current UK programmes with ages/intervals (verify at integration): cervical (HPV-primary, 25–64; 5-yearly HPV-neg 25–49 from Jul 2025, 5-yearly 50–64), breast (50–69, extending 47–73, 3-yearly), bowel FIT (54–74, expanding to 50), AAA (men at 65), targeted lung health checks (55–74 ever-smokers), antenatal & newborn. Exam tip: screening ≠ diagnostic; positives need confirmatory test.

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