The relationship between body-mass index and overall survival in non-small cell lung cancer by sex, smoking status, and race: A pooled analysis of 20,937 International lung Cancer consortium (ILCCO) patients.
Lung Cancer
; 152: 58-65, 2021 02.
Article
em En
| MEDLINE
| ID: mdl-33352384
ABSTRACT
INTRODUCTION:
The relationship between Body-Mass-Index (BMI) and lung cancer prognosis is heterogeneous. We evaluated the impact of sex, smoking and race on the relationship between BMI and overall survival (OS) in non-small-cell-lung-cancer (NSCLC).METHODS:
Data from 16 individual ILCCO studies were pooled to assess interactions between BMI and the following factors on OS self-reported race, smoking status and sex, using Cox models (adjusted hazard ratios; aHR) with interaction terms and adjusted penalized smoothing spline plots in stratified analyses.RESULTS:
Among 20,937 NSCLC patients with BMI values, femalesâ¯=â¯47 %; never-smokersâ¯=â¯14 %; White-patientsâ¯=â¯76 %. BMI showed differential survival according to race whereby compared to normal-BMI patients, being underweight was associated with poor survival among white patients (OS, aHRâ¯=â¯1.66) but not among black patients (aHRâ¯=â¯1.06; pinteractionâ¯=â¯0.02). Comparing overweight/obese to normal weight patients, Black NSCLC patients who were overweight/obese also had relatively better OS (pinteractionâ¯=â¯0.06) when compared to White-patients. BMI was least associated with survival in Asian-patients and never-smokers. The outcomes of female ever-smokers at the extremes of BMI were associated with worse outcomes in both the underweight (pinteraction<0.001) and obese categories (pinteractionâ¯=â¯0.004) relative to the normal-BMI category, when compared to male ever-smokers.CONCLUSION:
Underweight and obese female ever-smokers were associated with worse outcomes in White-patients. These BMI associations were not observed in Asian-patients and never-smokers. Black-patients had more favorable outcomes in the extremes of BMI when compared to White-patients. Body composition in Black-patients, and NSCLC subtypes more commonly seen in Asian-patients and never-smokers, may account for differences in these BMI-OS relationships.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Carcinoma Pulmonar de Células não Pequenas
/
Neoplasias Pulmonares
Tipo de estudo:
Etiology_studies
/
Prognostic_studies
/
Risk_factors_studies
/
Systematic_reviews
Aspecto:
Determinantes_sociais_saude
Limite:
Female
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Humans
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Male
Idioma:
En
Revista:
Lung Cancer
Assunto da revista:
NEOPLASIAS
Ano de publicação:
2021
Tipo de documento:
Article