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FOB screening and explaining risk & benefit. Hannah Hayward. Aims and objectives. Background of faecal occult blood test Different ways of communicating risk about FOB. Basic background of FOB. Faecal occult blood test is a SCREENING programme It is only for people who are SYMPTOM FREE
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FOB screening and explaining risk & benefit Hannah Hayward
Aims and objectives • Background of faecal occult blood test • Different ways of communicating risk about FOB
Basic background of FOB • Faecal occult blood test is a SCREENING programme • It is only for people who are SYMPTOM FREE • It tests for non visible blood in stool • Aims to detect early colon cancer (can be other reasons for blood in stool) • Age 60-69 England (due to extend to 74 in 2014, Wales 60-74, Scotland 50-74, NI 60-71 all very 2 years)
Effective ways of communicating risk • Almost all medical procedures are associated with some risks • Don’t use descriptive words like low and high, instead use actual figures • 5 out 100 people will develop bowel cancer • Use a consistent denominator • 98 out of 100 will have a normal result • 4 out of 100 will have an unclear result • 2 out if 100 will have an abnormal result
Use visual aids Visual aids
Positive Test has been shown to reduce the risk of dying from bowel cancer Negative Not 100% reliable Bowel cancer can be missed Bowel cancer can develop in time in between screening Can end up with more tests further FOB/colonoscopy Offer positive and negative to help weigh up risks
Thank you Any questions?
References • Strategies to help patients understand risk, John Paling, BMJ VOLUME 327, 27 SEPTEMBER 2003 • BOWEL CANCER SCREENING:The Facts, Department of Health, First Edition May 2006 Updated February 2011. • Patient.co.uk. Screening for colorectal cancer, patient information leaflet