Disparities in the Diagnosis and Treatment of Lung Cancer among People with Disabilities.

Published on Feb 1, 2019in Journal of Thoracic Oncology13.357
· DOI :10.1016/J.JTHO.2018.10.158
Dong Wook Shin26
Estimated H-index: 26
(SKKU: Sungkyunkwan University),
Jong Ho Cho17
Estimated H-index: 17
(SMC: Samsung Medical Center)
+ 7 AuthorsIchiro Kawachi173
Estimated H-index: 173
(Harvard University)
Abstract Introduction Potential disparities in the diagnosis, treatment, and survival of patients with lung cancer with and without disabilities have rarely been investigated. Methods We conducted a retrospective cohort study with a data set linking the Korean National Health Service database, disability registration data, and Korean Central Cancer Registry data. A total of 13,591 people with disabilities in whom lung cancer had been diagnosed and 43,809 age- and sex-matched control subjects in whom lung cancer had been diagnosed were included. Results Unknown stage was more common in people with severe disabilities (13.1% versus 10.3%), especially those with a communication (14.2%) or mental/cognitive disability (15.7%). People with disabilities were less likely to undergo a surgical procedure (adjusted OR [aOR] = 0.82, 95% confidence interval [CI]: 0.77–0.86), chemotherapy (aOR = 0.80, 95% CI: 0.77–0.84), or radiotherapy (aOR = 0.92, 95% CI: 0.88–0.96). This higher likelihood was more evident for people with severe communication impairment (aORs of 0.46 for surgery and 0.64 for chemotherapy) and severe brain/mental impairment (aORs 0.39 for surgery, 0.47 for chemotherapy, and 0.49 for radiotherapy). Patients with disabilities had a slightly higher overall mortality than did people with no disability (adjusted hazard ratio = 1.08, 95% CI: 1.06–1.11), especially in the group with a severe disability (a hazard ratio = 1.20, 95% CI: 1.16–1.24). Conclusions Patients with lung cancer and disabilities, especially severe ones, underwent less staging work-up and treatment even though their treatment outcomes were only slightly worse than those of people without a disability. Although some degree of disparity might be attributed to reasonable clinical judgement, unequal clinical care for people with communication and brain/mental disabilities suggests unjustifiable disability-related barriers that need to be addressed.
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