ABSTRACT
PURPOSE: To analyze the incidence and mortality of laryngeal cancer in cancer registration areas of China in 2010. MATERIALS AND METHODS: Until June 1, 2013, 219 population-based cancer registries submitted data of 2010 to the National Central Cancer Registry of China covering about 207,229,403 population, and 120 cancer registries were selected after quality evaluation for this analysis. Laryngeal cancer cases were selected from the database according to International Classification of Diseases 10th Revision coded as "C32." We calculated the crude incidence and mortality rates of laryngeal cancer by sex, age, and location (urban/rural). The China population in 2000 and Segi's population were used as standardized populations for the calculation of age-standardized rates. RESULTS: In 2010, it was estimated that there were 20,272 new cases diagnosed as laryngeal cancer in China, including 17,703 males and 2569 females. The crude incidence rate of laryngeal cancer was 1.54/100,000 in 2010, accounting for 0.66% of overall new cancer cases. The age-standardized by China population (ASRcn) and by world population (ASRwld) were 1.18/100,000 and 1.20/100,000, respectively. Cumulative rate (0-74 years old) and truncated age-standardized rate (35-64 years old) were 0.15% and 1.98/100,000, respectively. Moreover, it was estimated that there were 11 914 cases died in laryngeal cancer in China, including 10,038 males and 1876 females. The crude mortality rate was 0.91/100,000, accounting for 0.61% of overall cancer deaths. The ASRcn and ASRwld were 0.68/100,000 and 0.69/100,000, respectively. Cumulative rate and truncated age-standardized rates were 0.08% and 0.88/100,000, respectively. CONCLUSIONS: Both incidence and mortality of laryngeal cancer in China were still low in 2010.
Subject(s)
Laryngeal Neoplasms/epidemiology , Adolescent , Adult , Aged , Aged, 80 and over , Child , Child, Preschool , China/epidemiology , Female , History, 21st Century , Humans , Incidence , Infant , Infant, Newborn , Laryngeal Neoplasms/history , Laryngeal Neoplasms/mortality , Male , Middle Aged , Population Surveillance , Registries , Rural Population , Urban Population , Young AdultABSTRACT
PURPOSE: To analyze the incidence and mortality of oral cavity cancer in the cancer registration areas of China in 2010. MATERIALS AND METHODS: Until June 1, 2013, 219 population-based cancer registries submitted the data of 2010 to the National Central Cancer Registry of China covering about 207,229,403 population, and 120 cancer registries were selected after the quality evaluation for this analysis. Oral cavity cancer cases were selected from the database according to the International Classification of Diseases-10 coded as "C00-C10, C11-C12." We calculated the crude incidence and mortality rates of oral cavity cancer by sex, age, and location (urban/rural). The China population in 2000 and Segi's population were used as standardized populations for the calculation of age standardized rates. RESULTS: In 2010, it was estimated that there were 34,319 new cases diagnosed as oral cavity cancer in China, including 23,096 males and 11,223 females. The crude incidence rate of oral cavity cancer was 2.61/100,000 in 2010, accounting for 1.11% of overall new cancer cases, ranked the 20th in all cancer sites. The age standardized by China population (ASRcn) and by world population (ASRwld) were 2.06/100,000 and 2.02/100,000, respectively. Cumulative rate (0-74 years old) and truncated age standardized rate (35-64 years old) were 0.23% and 3.82/100 000, respectively. In 2010, it was estimated that there were 14,652 cases died in oral cavity cancer in China, including 10,363 males and 4289 females. The crude mortality rate of oral cavity cancer was 1.11/100,000 in 2010, accounting for 0.75% of overall cancer deaths, ranked the 20th in all cancer sites. The ASRcn and ASRwld were 0.86/100,000 and 0.85/100,000, respectively. Cumulative rate and truncated age standardized rates were 0.10% and 1.30/100,000, respectively. CONCLUSIONS: Both the incidence and mortality of oral cavity cancer in China were still low in 2010. Primary prevention such as smoking control, reducing alcohol consumption, changing the habit of chewing betel nut, and chemical prevention should be enhanced in the general population.
Subject(s)
Mouth Neoplasms/epidemiology , Adolescent , Adult , Aged , Aged, 80 and over , Child , Child, Preschool , China/epidemiology , Female , History, 21st Century , Humans , Incidence , Infant , Infant, Newborn , Male , Middle Aged , Mouth Neoplasms/history , Mouth Neoplasms/mortality , Population Surveillance , Registries , Rural Population , Urban Population , Young AdultABSTRACT
OBJECTIVE: To investigate the prognosis of adenoid cystic carcinoma (ACC) in salivary gland and its influencing factors. METHODS: Clinical and following-up data of 76 patients with ACC in salivary glands were reviewed. Major gland tumors represented 35.5% whereas minor gland tumors comprised 64.5% of the cohort, with 8 cases (10.5%) in stage I, 23 (30.3%) in stage II, 18 (23.7%) in stage III and 27(35.5%) in stage IV. Survival rates were calculated by Kaplan-Merier method. Cumulative survival curves were evaluated using the Log-rank test. Multivariate analysis was performed by Cox proportional hazard model. RESULTS: The regional recurrence rate was 28.9% and distant metastasis rate was 21.1%. The overall 5-year survival rate, tumor-free survival rate and tumor-related survival rate were 73.7%, 61.8% and 74.9% respectively. The overall 10-year survival rate, tumor-free survival rate and tumor-related survival rate were 48.2%, 39.8% and 56.2% respectively. Univariate survival analysis showed pathological type, clinical stage and perineural invasion were relevant to the prognosis of ACC and multivariate analysis showed they were the independent prognostic factors of ACC in salivary gland. CONCLUSIONS: Clinical stage, pathological type and perineural invasion were the independent prognostic factors for adenoid cystic carcinoma in salivary gland. Surgery was the first choice for the treatment of adenoid cystic carcinoma in salivary gland, and postoperative radiotherapy may prolong the tumor-free survival time of patients in stage III and IV.
Subject(s)
Carcinoma, Adenoid Cystic/diagnosis , Salivary Gland Neoplasms/diagnosis , Adult , Aged , Female , Humans , Male , Middle Aged , Multivariate Analysis , Prognosis , Retrospective Studies , Survival Rate , Young AdultABSTRACT
OBJECTIVE: To analyze the patterns of incidence and mortality on larynx cancer in China. METHODS: Data from 32 Cancer Registries in China were examined, sorted, and analyzed by the National Cancer Registry, to obtain the crude, Chinese national and world age-standardized rates (ASR) of incidence and mortality and their trends. RESULTS: The crude incidence and mortality rates of larynx cancer were 2.04/10(5) and 1.06/10(5) in China during 2003-2007. The rates were higher in males than those in females, and also higher in urban areas than those in rural areas. The highest Chinese ASRs of incidence and mortality of larynx cancer in 32 cancer registries in China were 2.08/10(5) in Zhongshan city, Guangdong province, and 1.58/10(5) in She county, Hebei province respectively. The trend of incidence and mortality of larynx cancer was stable from 2003 to 2007. CONCLUSION: Although both the incidence and mortality of larynx cancer in China were still in low level, comprehensive measures should be carried out to prevent the increase on both the incidence and mortality of larynx cancer.
