Survival associated with chronic obstructive pulmonary disease among SEER-Medicare beneficiaries with non-small-cell lung cancer.
Int J Chron Obstruct Pulmon Dis
; 14: 893-903, 2019.
Article
em En
| MEDLINE
| ID: mdl-31118599
ABSTRACT
Objective:
We investigated the impact of preexisting COPD and its subtypes, chronic bronchitis and emphysema, on overall survival among Medicare enrollees diagnosed with non-small-cell lung cancer (NSCLC).Methods:
Using SEER-Medicare data, we included patients ≥66 years of age diagnosed with NSCLC at any disease stage between 2006 and 2010 and continuously enrolled in Medicare Parts A and B in the 12 months prior to diagnosis. Preexisting COPD in patients with NSCLC were identified using ICD-9 codes. Kaplan-Meier method and log-rank tests were used to examine overall survival by COPD status and COPD subtype. Multivariable Cox proportional hazards models were fit to assess the risk of death after cancer diagnosis.Results:
We identified 66,963 lung cancer patients. Of these, 22,497 (33.60%) had documented COPD before NSCLC diagnosis. For each stage of NSCLC, median survival was shorter in the COPD compared to the non-COPD group (Stage I 692 days vs 1,130 days, P<0.0001; Stage II 473 days vs 627 days, P<0.0001; Stage III 224 days vs 229 days; P<0.0001; Stage IV 106 days vs 112 days, P<0.0001). For COPD subtype, median survival for patients with preexisting chronic bronchitis was shorter compared to emphysema across all stages of NSCLC (Stage I 672 days vs 811 days, P<0.0001; Stage II 582 days vs 445 days, P<0.0001; Stage III 255 days vs 229 days, P<0.0001; Stage IV 105 days vs 112 days, P<0.0001). In Cox proportional hazard model, COPD patients exhibited 11% increase in risk of death than non-COPD patients (HR 1.11, 95%CI 1.09-1.13).Conclusion:
NSCLC patients with preexisting COPD had shorter survival with marked differences in early stages of lung cancer. Chronic bronchitis demonstrated a greater association with time to death than emphysema.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Enfisema Pulmonar
/
Medicare
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Bronquite Crônica
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Doença Pulmonar Obstrutiva Crônica
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Benefícios do Seguro
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Neoplasias Pulmonares
Tipo de estudo:
Diagnostic_studies
/
Etiology_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Aged
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Aged80
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Female
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Humans
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Male
País como assunto:
America do norte
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article