Huafu Li1,2, Zhewei Wei2, Chunming Wang1,2, Wei Chen2, Yulong He3,4, Changhua Zhang5,6. 1. Dermatovenerology Digestive Medicine Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, No. 628, Zhenyuan Rd, Guangming (New) Dist., Shenzhen, China. 2. Department of Gastrointestinopancreatic Surgery, The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan 2nd Road, Guangzhou, 510080, Guangdong, People's Republic of China. 3. Dermatovenerology Digestive Medicine Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, No. 628, Zhenyuan Rd, Guangming (New) Dist., Shenzhen, China. heyulong@mail.sysu.edu.cn. 4. Department of Gastrointestinopancreatic Surgery, The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan 2nd Road, Guangzhou, 510080, Guangdong, People's Republic of China. heyulong@mail.sysu.edu.cn. 5. Dermatovenerology Digestive Medicine Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, No. 628, Zhenyuan Rd, Guangming (New) Dist., Shenzhen, China. zhchanghsysuedu@163.com. 6. Department of Gastrointestinopancreatic Surgery, The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan 2nd Road, Guangzhou, 510080, Guangdong, People's Republic of China. zhchanghsysuedu@163.com.
Abstract
OBJECTIVES: To evaluate gender differences in initial presentation, pathology and outcomes with GC (GC). METHODS: The 1973-2013 Surveillance Epidemiology and End Results (SEER) 17-registry database was analysed for renal tumours from 1973 to 2013 coded as primary site "stomach". After various exclusions, a final study group of 99,922 cases with complete data was obtained. Demographic variables analysed included age, sex, marital status and race. Tumour variables included size, stage at diagnosis, grade, primary site, treatment and histology. Primary outcome variables included overall survival (OS) and cancer-specific survival (CSS). RESULTS: Overall, 96,501 gastric cancer patients were identified. Of those, 34,862 (36.2%) were women. For woman, log-rank test showed that OS and CSS were significantly longer in man (p < 0.0001). In Cox regression analysis, woman was associated with a significantly improved OS [(HR of death in 1973 to 2003 = 0.87, 95% CI = 0.85-0.89, P < 0.001) (HR of death in 2004 to 2013 = 0.94, 95% CI = 0.91-0.97, P < 0.001)] and cancer-specific survival [(HR of death in 1973 to 2003 = 0.90, 95% CI = 0.87-0.92, P < 0.001) (HR of death in 2004 to 2013 = 0.90, 95% CI = 0.87-0.93, P < 0.001)]. When performing a Kaplan-Meier curve analysis after propensity score matching, gender persisted to be a significant survival of woman for OS and CSS. CONCLUSIONS: Men present with larger, higher stage, higher grade GC than women. OS and CSS are better in women, which is significantly different.
OBJECTIVES: To evaluate gender differences in initial presentation, pathology and outcomes with GC (GC). METHODS: The 1973-2013 Surveillance Epidemiology and End Results (SEER) 17-registry database was analysed for renal tumours from 1973 to 2013 coded as primary site "stomach". After various exclusions, a final study group of 99,922 cases with complete data was obtained. Demographic variables analysed included age, sex, marital status and race. Tumour variables included size, stage at diagnosis, grade, primary site, treatment and histology. Primary outcome variables included overall survival (OS) and cancer-specific survival (CSS). RESULTS: Overall, 96,501 gastric cancerpatients were identified. Of those, 34,862 (36.2%) were women. For woman, log-rank test showed that OS and CSS were significantly longer in man (p < 0.0001). In Cox regression analysis, woman was associated with a significantly improved OS [(HR of death in 1973 to 2003 = 0.87, 95% CI = 0.85-0.89, P < 0.001) (HR of death in 2004 to 2013 = 0.94, 95% CI = 0.91-0.97, P < 0.001)] and cancer-specific survival [(HR of death in 1973 to 2003 = 0.90, 95% CI = 0.87-0.92, P < 0.001) (HR of death in 2004 to 2013 = 0.90, 95% CI = 0.87-0.93, P < 0.001)]. When performing a Kaplan-Meier curve analysis after propensity score matching, gender persisted to be a significant survival of woman for OS and CSS. CONCLUSIONS:Men present with larger, higher stage, higher grade GC than women. OS and CSS are better in women, which is significantly different.
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