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ABSTRACT: Background/aims
The incidence and prognosis of gastric cancer (GC) shows sex difference. This study aimed to evaluate the effect of body mass index (BMI) on GC survival depending on sex.Methods
The sex, age, location, histology, TNM stages, BMI, and survival were analyzed in GC patients from May 2003 to February 2020 at the Seoul National University Bundang Hospital.Results
Among 14,688 patients, there were twice as many males (66.6%) as females (33.4%). However, under age 40 years, females (8.6%) were more prevalent than males (3.1%). Cardia GC in males showed a U-shaped distribution for underweight (9.6%), normal (6.4%), overweight (6.1%), obesity (5.6%), and severe obesity (9.3%) but not in females (p=0.003). Females showed decreased proportion of diffuse-type GC regarding BMI (underweight [59.9%], normal [56.8%], overweight [49.5%], obesity [44.8%], and severe obesity [41.7%]), but males did not (p<0.001). Both sexes had the worst prognosis in the underweight group (p<0.001), and the higher BMI, the better prognosis in males, but not females. Sex differences in prognosis according to BMI tended to be more prominent in males than in females in subgroup analysis of TNM stages I, II, and III and the operative treatment group.Conclusions
GC-specific survival was affected by BMI in a sex-dependent manner. These differences may be related to genetic, and environmental, hormonal factors; body composition; and muscle mass (Trial registration number: NCT04973631).
SUBMITTER: Jo HH
PROVIDER: S-EPMC10018295 | biostudies-literature | 2023 Mar
REPOSITORIES: biostudies-literature
Jo Hyeong Ho HH Kim Nayoung N Jang Jieun J Choi Yonghoon Y Park Jaehyung J Park Young Mi YM Ahn Soyeon S Yoon Hyuk H Shin Cheol Min CM Park Young Soo YS Lee Dong Ho DH Oh Hyeon Jeong HJ Lee Hye Seung HS Park Young Suk YS Ahn Sang-Hoon SH Suh Yun-Suhk YS Park Do Joong DJ Kim Hyung Ho HH Kim Ji-Won JW Kim Jin Won JW Lee Keun-Wook KW Chang Won W Park Ji Hoon JH Lee Yoon Jin YJ Lee Kyoung Ho KH Kim Young Hoon YH
Gut and liver 20221101 2
<h4>Background/aims</h4>The incidence and prognosis of gastric cancer (GC) shows sex difference. This study aimed to evaluate the effect of body mass index (BMI) on GC survival depending on sex.<h4>Methods</h4>The sex, age, location, histology, TNM stages, BMI, and survival were analyzed in GC patients from May 2003 to February 2020 at the Seoul National University Bundang Hospital.<h4>Results</h4>Among 14,688 patients, there were twice as many males (66.6%) as females (33.4%). However, under ag ...[more]