Rescreening of a group at high risk for XXXX using immunochemical tests for faecal occult blood.

@entity1 @entity1631 @entity5 @entity14
The results of a screening programme for @entity14 in a high risk group using an immunochemical test for blood has been reported recently. This test is known as the faecal @entity1 haemoglobin ( @entity1631 ) test. This paper reports the results of rescreening this group after an interval of 1-2 years. The @entity1631 test was compared with a paper disc method. All individuals with positive tests were investigated and those with negative tests were offered investigation. The results confirm the value of the @entity1631 test in screening a high risk group: 19 individuals in 1,153 @entity1 were found to have a significant @entity5 (1.6%). The predictive value of the test for a significant @entity5 was 42%. A false negative rate of 2.6% was found, all lesions being benign. It appears to be more reliable than the paper disc method but the differences do not reach statistical significance. The @entity1631 test is recommended for screening the general population over the age of 40 years, with rescreening annually.
