Objective To analyse comparatively the relevant data from bone tumor registries in China, Japan, and the United States Methods The data of 38?959 histologically confirmed primary bone tumors collected by the Chines...Objective To analyse comparatively the relevant data from bone tumor registries in China, Japan, and the United States Methods The data of 38?959 histologically confirmed primary bone tumors collected by the Chinese Bone Tumor Registry 1957 1988, 20?272 collected by the Japanese Bone Tumor Registry 1972 1990, and 11087 diagnosed and treated at Mayo Clinic, USA were used for comparative analysis by race, age, sex and skeletal distribution For reliability, we used ratios of different tumors to osteosarcoma for frequency analysis We also included some data from the SEER 1973 1987 as well as from Memorial Sloan Kettering Cancer Center, USA Results The relative frequency of osteosarcoma (OS) is higher in China and Japan than in the United States There were only limited number of OS patients aged over 50 years in Chinese and Japanese groups, which might be due to the lower incidence of OS subsequent to Paget's disease in Asians More osteosarcoma occurred in the flat bones in the Americans than in the Chinese and Japanese The relative frequency of chondrosarcoma (CS) was higher in the American group than in the Asian groups The average age of CS patient was younger in the Chinese than in the Japanese and the Americans The data confirmed the previous report that the incidence of Ewing sarcoma was higher in western people than in Asians The data showed that the comparative frequency of chordoma is higher in the Americans than in the Asians and that the incidence of giant cell tumor of bone is higher in the Chinese and Japanese than in the Americans Conclusion The findings from this analysis provide useful information for the epidemiologic study and the clinical diagnosis of bone tumors展开更多
AIM： To evaluate the classification and severity of Crohn＇s disease in different racial groups. METHODS： Patients with Crohn＇s disease from the outpatient clinic of the University Hospital Prof. Edgard Santos were...AIM： To evaluate the classification and severity of Crohn＇s disease in different racial groups. METHODS： Patients with Crohn＇s disease from the outpatient clinic of the University Hospital Prof. Edgard Santos were enrolled in the study. This hospital is a reference centre for inflammatory bowel disease. Race was determined using self-identification. The Vienna＇s classification was applied for all subjects. The severity of Crohn＇s disease was determined according to the number of surgical procedures, hospital admissions in the last year and treatment with steroids and immunosuppressors. Statistical analysis was calculated using t test for means,χ^2 or F for proportions. A P value 〈 0.05 was considered to be significant. RESULTS： Sixty-five patients were enrolled. Non-white patients were more frequently diagnosed with Crohn＇s disease in the age less than 40 years than white patients. The behaviour of disease was similar in both groups with a high frequency of the penetrating form. There was a tendency for non-white patients to have a greater frequency of hospital admissions in the last year compared to white subjects. Non-whites also had a higher rate of colonic and upper gastrointestinal involvement, and were also more frequently on treatment with immunossupressors than white patients although this difference was not statistically significant. CONCLUSION： Non-white patients with Crohn＇s disease had an earlier diagnosis and appeared to have had a more severe disease Dresentation than white patients.展开更多
This article is devoted to developing a recognition method of race and ethnicity of individual based on portrait photographs. The reference image is formed based on selected geometric points of the face and a special ...This article is devoted to developing a recognition method of race and ethnicity of individual based on portrait photographs. The reference image is formed based on selected geometric points of the face and a special algorithm for calculating the characteristic parameters of the images available in the database. Next, the original image is compared with the reference images of ethnic groups, and thus, the affiliation of the original image to a specific ethnic group is determined.展开更多
文摘Objective To analyse comparatively the relevant data from bone tumor registries in China, Japan, and the United States Methods The data of 38?959 histologically confirmed primary bone tumors collected by the Chinese Bone Tumor Registry 1957 1988, 20?272 collected by the Japanese Bone Tumor Registry 1972 1990, and 11087 diagnosed and treated at Mayo Clinic, USA were used for comparative analysis by race, age, sex and skeletal distribution For reliability, we used ratios of different tumors to osteosarcoma for frequency analysis We also included some data from the SEER 1973 1987 as well as from Memorial Sloan Kettering Cancer Center, USA Results The relative frequency of osteosarcoma (OS) is higher in China and Japan than in the United States There were only limited number of OS patients aged over 50 years in Chinese and Japanese groups, which might be due to the lower incidence of OS subsequent to Paget's disease in Asians More osteosarcoma occurred in the flat bones in the Americans than in the Chinese and Japanese The relative frequency of chondrosarcoma (CS) was higher in the American group than in the Asian groups The average age of CS patient was younger in the Chinese than in the Japanese and the Americans The data confirmed the previous report that the incidence of Ewing sarcoma was higher in western people than in Asians The data showed that the comparative frequency of chordoma is higher in the Americans than in the Asians and that the incidence of giant cell tumor of bone is higher in the Chinese and Japanese than in the Americans Conclusion The findings from this analysis provide useful information for the epidemiologic study and the clinical diagnosis of bone tumors
文摘AIM： To evaluate the classification and severity of Crohn＇s disease in different racial groups. METHODS： Patients with Crohn＇s disease from the outpatient clinic of the University Hospital Prof. Edgard Santos were enrolled in the study. This hospital is a reference centre for inflammatory bowel disease. Race was determined using self-identification. The Vienna＇s classification was applied for all subjects. The severity of Crohn＇s disease was determined according to the number of surgical procedures, hospital admissions in the last year and treatment with steroids and immunosuppressors. Statistical analysis was calculated using t test for means,χ^2 or F for proportions. A P value 〈 0.05 was considered to be significant. RESULTS： Sixty-five patients were enrolled. Non-white patients were more frequently diagnosed with Crohn＇s disease in the age less than 40 years than white patients. The behaviour of disease was similar in both groups with a high frequency of the penetrating form. There was a tendency for non-white patients to have a greater frequency of hospital admissions in the last year compared to white subjects. Non-whites also had a higher rate of colonic and upper gastrointestinal involvement, and were also more frequently on treatment with immunossupressors than white patients although this difference was not statistically significant. CONCLUSION： Non-white patients with Crohn＇s disease had an earlier diagnosis and appeared to have had a more severe disease Dresentation than white patients.
文摘This article is devoted to developing a recognition method of race and ethnicity of individual based on portrait photographs. The reference image is formed based on selected geometric points of the face and a special algorithm for calculating the characteristic parameters of the images available in the database. Next, the original image is compared with the reference images of ethnic groups, and thus, the affiliation of the original image to a specific ethnic group is determined.
