Table 5. Level of agreement between self-reported data and case report form data collected from the GP records (routinely collected data) by type of investigations use in the 2 months post baseline (n=167).
| Type of investigations | CRF (+), SR (+) | CRF (+), SR (−) | CRF (−), SR (+) | CRF (−), SR (−) | Agreement (%) |
|---|---|---|---|---|---|
| ‘Other' chest X-ray, n (%) | 12 (7.19) | 2 (1.20) | 52 (31.14) | 101 (60.48) | 113 (67.66) |
| CT scan, n (%) | 2 (1.20) | 1 (0.60) | 7 (4.19) | 157 (94.01) | 159 (95.21) |
| MRI scan, n (%) | 0 (0.00) | 0 (0.00) | 9 (5.39) | 158 (94.61) | 158 (94.61) |
| PET-CT scan, n (%) | 0 (0.00) | 0 (0.00) | 4 (2.40) | 163 (97.60) | 163 (97.60) |
Abbreviations: CT=computed tomography; CRF=case report form data; ELCID=Early Lung Cancer Investigation and Diagnosis; GP=general practice; MRI=magnetic resonance imaging; PET-CT=positron emission tomography–computed tomography; SR=self-reported data.
Other' chest X-ray means additional CXR received following the CXR received on the ELCID trial as part of the ELCID intervention. The differences reported in this table may reflect a change in wording from the original CRF, that was subsequently improved from ‘Chest X-Ray' to ‘Chest X-Ray (not including any received on the ELCID trial)'.
CRF (−) means that the routine data did not indicate an investigation; CRF (+) means that the routine data indicated an investigation; SR (−) means that the respondent did not indicate an investigation; SR (+) means that the respondent indicated an investigation.