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Table 4 Usage of diagnostic tests pre and post intervention

From: Collaborating with front-line healthcare professionals: the clinical and cost effectiveness of a theory based approach to the implementation of a national guideline

Tests Pre intervention Post intervention Unit cost per test
First and second line % First and second line %
pH test 14.1% 49.5% £10.98
X-ray 60.2% 35.7% £100
Placed in radiology 7.5% 1.4% £128
Unknown 18.3% 13.4% Assumed zero
Total 100.0% 100.0%