Distinct effect of body mass index by sex as a prognostic factor in localized renal cell carcinoma treated with nephrectomy ~ data from a multi-institutional study in Japan ~.
BMC Cancer
; 21(1): 201, 2021 Feb 27.
Article
em En
| MEDLINE
| ID: mdl-33639880
ABSTRACT
BACKGROUND:
We assessed the prognostic value of body mass index (BMI) in Asian patients with localized RCC who underwent nephrectomy.METHODS:
A total of 665 patients who underwent nephrectomy for localized RCC were enrolled in the present study and divided into the two BMI groups i.e., BMI < 25 in 463 (69.6%) and BMI > 25 in 202 (30.4%) patients.RESULTS:
In total, there were 482 (72.5%) males and 183 (27.5%) females. Five-year cancer-specific survival (CSS) rates were significantly higher in increased BMI than the lower BMI group (97.1 and 92.5% P = 0.007). When stratified by sex, significantly longer CSS in higher BMI was confirmed in males (5-year CSS of 92.7% in BMI < 25 and 98.1% in BMI > 25, p = 0.005), while there was no difference in CSS between BMI groups for female patients. Multivariable analysis exhibited that higher BMI was an independent predictor for favorable CSS in male (cox model p = 0.041, Fine & Gray regression model p = 0.014), but not in the female. Subgroup analysis for CSS revealed that favorable CSS with higher BMI was observed in patient subgroups of age < 65 (p = 0.019), clear cell histology (p = 0.018), and tumor size > 4 cm, p = 0.020) as well as male (p = 0.020).CONCLUSION:
Our findings collected from the multi-institutional Japanese dataset demonstrated longer survival in patients with higher BMI than lower BMI for non-metastatic RCC treated with nephrectomy. Intriguingly, this finding was restricted to males, but not to females.Palavras-chave
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Base de dados:
MEDLINE
Assunto principal:
Carcinoma de Células Renais
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Índice de Massa Corporal
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Fatores Sexuais
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Neoplasias Renais
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Nefrectomia
Tipo de estudo:
Observational_studies
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Prognostic_studies
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Risk_factors_studies
Limite:
Adult
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Aged
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Aged80
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Female
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Humans
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Male
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Middle aged
País como assunto:
Asia
Idioma:
En
Ano de publicação:
2021
Tipo de documento:
Article