Factors Influencing the Use of Thoracic Radiotherapy in Lung Cancer — an Analysis of the 1995 Scottish Lung Cancer Audit

Abstract

Aims: To determine the frequency of delivery of thoracic radiotherapy (TRT) to patients with lung cancer in Scotland in 1995, and identify patient, disease and process variables affecting the probability of receiving TRT.Methods: Retrospective case note audit of all patients with lung cancer diagnosed in Scotland in 1995.Results: 1118 (30.8%) of 3855 patients diagnosed with lung cancer in Scotland in 1995 for whom the medical records could be traced received TRT. In those who did not have small cell lung cancer, multivariate analysis indicated that diagnosis by a lung cancer specialist, clinical extent of disease and microscopic verification of cancer (all P<0.0001) and age (P=0.0005) were associated with an increased chance of receiving TRT. There was also a wide variation between different Health Boards (HB) of residence in the proportion of patients receiving TRT (P<0.0001). There was no association between the presence of local symptoms (cough, chest pain or haemoptysis) and the delivery of TRT. Of 351 patients with limited stage small cell lung cancer, 51 (14.5%) received chemotherapy and TRT, and 19 (5.4%) chemotherapy and cranial irradiation.Conclusions: TRT was delivered to fewer than one-third of patients with lung cancer in Scotland in 1995. This is lower than reported in other international audits. The chance of receiving TRT seemed to be associated with service issues rather than clinical need.