Causes of Death and Hospitalization in Long-term Lung Cancer Survivors: A Population-based Appraisal

Lung cancer survivorship is emerging as an important topic owing to improved survival, but information about health issues among survivors of lung cancer is still lacking. This study used a population dataset to assess causes of death (COD) and hospitalization among long-term (5-year) survivors of lung cancer.

Using linked data from the California Cancer Registry and Office of Statewide Health Planning and Development, all patients with lung cancer diagnosed from 2000 to 2012 were identified. COD and principal admission diagnoses were categorized for all survivors beginning 5 years after diagnosis. Annual proportional distribution of diagnoses and COD were calculated over time.

Among 102,768 patients with lung cancer, 12,048 (11.7%) survived at least 5 years after diagnosis. Lung cancer was the most common reason for admission in the first 5 years after diagnosis. In the sixth year after diagnosis, 3662 (41.8%) of 8755 long-term survivors had at least 1 hospitalization, which declined to 804 (10.4%) of 7718 in year 10. Among long-term survivors, pulmonary disease (18.3%) became the most common reason for admission, followed by cardiovascular and gastrointestinal disease. However, 48.7% of 4728 deaths occurring among long-term survivors were still owing to lung cancer. The next most common COD were cardiovascular disease, pulmonary disease, and secondary neoplasm.

Hospitalizations among long-term survivors of lung cancer are common and occur most often owing to cardiovascular, pulmonary, and gastrointestinal diseases. Lung cancer remains the dominant COD even after 5-year survival. Active control of chronic cardiopulmonary disease and cancer surveillance should be priorities when providing patient-centered, comprehensive survivorship care.