T1103 What Is the Proportion of Screened and Interval Cancers Among Overall Colorectal Cancers Diagnosed in a French District Implying a Mass Screening Programme with Faecal Occult Blood Test (FOBT)?

2008 ◽  
Vol 134 (4) ◽  
pp. A-484
Author(s):  
Caroline Jézéquel ◽  
Sylvain Manfredi ◽  
Gaud Mallard ◽  
Christine Piette ◽  
Gérard Durand ◽  
...  
Keyword(s):  
Mass Screening ◽  
Blood Test ◽  
Screening Programme ◽  
Occult Blood ◽  
Faecal Occult Blood Test ◽  
Colorectal Cancers ◽  
Occult Blood Test ◽  
Interval Cancers ◽  
Faecal Occult Blood ◽  
Faecal Occult

scholarly journals Changes in prevalence of faecal occult blood positivity over time

2019 ◽  
Vol 26 (4) ◽  
pp. 191-196 ◽  
Author(s):  
Anna Goulding ◽  
Gavin RC Clark ◽  
Annie S Anderson ◽  
Judith A Strachan ◽  
Callum G Fraser ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Positive Predictive Value ◽  
Blood Test ◽  
Screening Programme ◽  
Occult Blood ◽  
Faecal Occult Blood Test ◽  
Occult Blood Test ◽  
Faecal Occult Blood ◽  
Faecal Occult ◽  
Over Time

Objectives Changes in the prevalence of faecal occult blood test positivity over time have not been previously reported, but could have important implications. This study examined the positivity of the initial guaiac faecal occult blood test, a surrogate marker for colorectal bleeding, in participants aged 50 in a national bowel screening programme. Methods Data from the Scottish Bowel Screening Programme were used to study the initial positivity of the guaiac faecal occult blood test between 2007 and 2017. Positive predictive values of the testing process for colorectal cancer and adenoma were assessed over the same time period. Results Across Scotland, the initial guaiac faecal occult blood test positivity increased from 4.1 to 10.8%. In NHS Grampian and NHS Fife, two of the three NHS Boards which began roll-out of screening in 2007, it increased from 4.0 to 10.9%. In the Scottish Bowel Screening Programme, the positive predictive value declined from 11.0 to 6.6% for colorectal cancer and increased from 31.6 to 39.8% for adenoma. Conclusions In the Scottish programme over a decade, initial guaiac faecal occult blood test positivity increased in participants aged 50. This may be associated with changes in lifestyle and might have implications for screening clinical outcomes, including positive predictive value.

Flexible sigmoidoscopy following a positive faecal occult blood test within a bowel screening programme may reduce the detection of neoplasia

2013 ◽  
Vol 15 (11) ◽  
pp. 1375-1381 ◽  
Author(s):  
D. Mansouri ◽  
D. C. McMillan ◽  
C. S. D. Roxburgh ◽  
S. J. Moug ◽  
E. M. Crighton ◽  
...  
Keyword(s):  
Blood Test ◽  
Flexible Sigmoidoscopy ◽  
Screening Programme ◽  
Occult Blood ◽  
Faecal Occult Blood Test ◽  
Occult Blood Test ◽  
Faecal Occult Blood ◽  
Faecal Occult
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