<b>INTRODUCTIONb>Dermatomyositis (DM) is a multisystem inflammatory disease with a strong association with malignancy. We aimed to describe a series of Asian patients with DM and identify any significant clinical factors associated with malignancy.

<b>MATERIALS AND METHODSb>This was a retrospective review of a multi-racial cohort of 69 Asian patients diagnosed with DM over an 11-year period from 1996 to 2006.

<b>RESULTSb>Malignancy was detected in 15 out of 68 patients (22%), the most common of which was nasopharyngeal carcinoma (7 cases). Compared to the non-malignancy group, the malignancy-associated group was older and had more male patients. There were no statistically significant clinical, serological or laboratory factors associated with a higher risk of malignancy.

<b>CONCLUSIONb>This study highlights the importance of ongoing malignancy screening especially for nasopharyngeal carcinoma in Asian patients with DM.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Carcinoma ; Confidence Intervals ; Dermatomyositis ; complications ; epidemiology ; immunology ; pathology ; Female ; Humans ; Logistic Models ; Male ; Middle Aged ; Muscle Weakness ; Nasopharyngeal Neoplasms ; epidemiology ; immunology ; pathology ; Odds Ratio ; Paraneoplastic Syndromes ; complications ; epidemiology ; immunology ; pathology ; Retrospective Studies ; Risk Factors ; Singapore ; epidemiology ; Young Adult

<b>Objective:b> To understand the prevalence of major human parasitic diseases and related factors in Henan province. <b>Methods:b> This stratified sampling survey was carried out according to the requirement of national survey protocol of major human parasitic diseases, 2014-2015. The prevalence of soil-transmitted helminths infection, taeniasis and intestinal protozoiasis were surveyed in 104 sites selected from 35 counties (districts) and the prevalence of clonorchiasis was surveyed in 62 sites selected from 37 townships. In each survey spot, 250 persons were surveyed. A total of 26 866 persons and 15 893 persons were surveyed. Modified Kato-Katz thick smear was used to detect the eggs of intestinal helminthes. Tube fecal culture was used to identify the species of hookworm. The Enterobius eggs were detected in children aged 3 to 6 years by using adhesive tape. The cyst and trophozoite of intestinal protozoa were examined with physiological saline direct smear method and iodine stain method. <b>Results:b> The overall infestation rate of intestinal parasites was2.02% in Henan, and the worm infection rate was higher than protozoa infection rate. Fourteen kinds of intestinal parasites were found, including nematode (5 species), trematode (2 species), and protozoan (7 species). The infection rate of Enterobius vermicularis was highest, and Qinba Mountain ecological area had the highest infestation rate of intestinal parasites in 4 ecological areas of Henan. There was no significant difference in intestinal parasite infection rate between males and females (χ(2)=3.630, P=0.057), and the differences in intestinal parasite infection rate among different age groups had significance (χ(2)=124.783, P=0.000 1). The infection rate reached the peak in age group ≤9 years and the major parasite was Enterobius vermicularis. Furthermore the overall human infection rate of parasite showed a downward trend with the increase of educational level of the people (χ(2)=70.969, P=0.000 1), the differences had significance (χ(2)=120.118, P=0.000 1). For different populations, the infection rate of intestinal parasites was highest among preschool children. The infection of intestinal helminth was mainly mild, only 2 severe cases were detected. The infection rate of Clonorchis sinensis in urban residents was only 0.006%. Logistic regression analysis showed that being preschool children (χ(2)=15.765, P=0.000 1) and drinking well water (χ(2)=45.589, P=0.000 1) were the risk factors for intestinal parasite infection, and annual income per capita of farmers was the protective factor against intestinal parasite infection. The infection rates of protozoa and intestinal parasites decreased sharply compared with the results of previous two surveys, and the rate of intestinal helminth infection also dropped sharply compared with the second survey. The numbers of protozoa, helminth and intestinal parasites detected in this survey were all less than the numbers found in the previous two surveys. <b>Conclusions:b> Compared the results of three surveys in Henan, the infection rate of protozoa and intestinal parasites showed a downward trend. The prevention and treatment of Enterobius vermicularis infection in children should be the key point of parasitic disease control in the future.
Animals ; Child ; Child, Preschool ; Clonorchiasis/epidemiology* ; Farmers ; Feces/parasitology* ; Female ; Helminthiasis/epidemiology* ; Helminths ; Humans ; Intestinal Diseases, Parasitic/parasitology* ; Male ; Prevalence ; Protective Factors ; Risk Factors ; Rural Population ; Soil Microbiology ; Surveys and Questionnaires ; Taeniasis/epidemiology* ; Trematode Infections/parasitology* ; Urban Population ; Water Wells

<b>Objective:b> To understand the prevalence and distribution of hypertension in population aged 15 years and over in Guizhou province and provide evidence for the prevention and management of hypertension. <b>Methods:b> Face to face interviews using national standard questionnaire were conducted among the study subjects selected in Guizhou through multi-stage random sampling. Blood pressure measurement for them was done with Omron HEM-1300 professional portable blood pressure monitor. SPSS 19.0 software was used for statistical analysis. The ratio was compared by the χ(2) test. The influencing factors of hypertension was analyzed by multivariate logistic regression analysis. <b>Results:b> A total of 13 480 participants were investigated, including 5 509 (40.8%) men and 7 971 (59.2%) women; 6 558 (48.6%) urban residents and 6 922 (51.4%) rural residents. Among the subjects surveyed, 3 232 (23.9%) were smokers, 2 412 (17.9%) were alcoholic and 4 859 (36.0%) were obese or overweight. A total of 3 937 (29.2%) hypertension patients were found. The prevalence of hypertension was 29.2%. The standardized prevalence of hypertension were 18.97% (compared with national population composition) and 21.16% (compared with Guizhou province population composition), respectively. The hypertension prevalence in men and women were 29.8% and 28.8%, respectively. The hypertension prevalence in rural population (35.8%) was higher than that in urban population (22.2%). The difference was statistically significant (P<0.001). The hypertension prevalence in people aged 65 years and over was 56.2%. The prevalence of hypertension were 34.3% and 27.6% in smokers and non-smokers, 39.2% and 27.0% in alcoholic and non-alcoholic and 40.7% and 22.7% in obese or overweight group and normal or less weight group, respectively. There were significant statistical differences in prevalence of hypertension among the population in urban area and rural area, with different age, education levels, smoking status, drinking status and BMI (P<0.001). <b>Conclusions:b> The prevalence of hypertension in Guizhou was at a high level. The hypertension prevalence in rural area was higher than that in urban area. Hypertension prevalence increased significantly with age. The prevalence of hypertension was negatively associated with the education level of the people. Older age, living in rural area, smoking, drinking, obesity were the risk factors for hypertension.
Adolescent ; Adult ; Aged ; Blood Pressure/physiology* ; Body Weight ; China/epidemiology* ; Female ; Humans ; Hypertension/epidemiology* ; Life Style/ethnology* ; Male ; Middle Aged ; Prevalence ; Risk Factors ; Rural Population ; Surveys and Questionnaires ; Urban Population ; Young Adult

<b>Objective:b> To understand the situation related to health seeking and diagnosis of imported malaria and to provide practical measures for malaria elimination in Jiangsu province. <b>Methods:b> Data on imported malaria cases in Jiangsu province was retrieved in CISDCP from 2014 to 2016. Relevant information on health seeking behavior, diagnosis and treatment of the disease was gathered. <b>Results:b> A total of 1 068 imported cases were reported in Jiangsu province from 2014 to 2016. Except for one malaria case that was caused by blood transfusion, the rest patients were all recognized as 'imported'. Majority of the cases were migrant laborers working in African countries. The accurate rates on the diagnosis of ovale, vivax and quartan malaria and mixed infection were relatively low, as 79.3% (107/135), 29.5% (18/61), 52.9% (18/34) and 0.0% (0/2) at the primary health care settings, respectively. Rate of seeking health care on the same day of onset was more in 2015 than in 2014 and 2016 (χ(2)=18.6, P=0.001). While only 65.4% (699/1 068) of the patients were diagnosed correctly at the primary health care settings. There appeared no statistical difference in the 3-year-study period (χ(2)=5.4, P=0.246). Capacity on 'correct diagnosis' seemed stronger at the CDC than at the hospital levels (χ(2)=13.2, P=0.000; χ(2)=5.4, P=0.020). Totally, 72.7% (32/44) of the severe falciparum malaria cases did not immediately seek for health care when the symptoms started. <b>Conclusions:b> Migrant workers returning from the high endemic malaria areas seemed to have poor awareness in seeking health care services. Capability on correct diagnosis for malaria at the primary health care settings remained unsatisfactory and staff from these settings needs to receive adequate training.
Adult ; China/epidemiology* ; Female ; Human Migration ; Humans ; Malaria/transmission* ; Male ; Middle Aged ; Plasmodium/isolation & purification* ; Prevalence ; Seasons ; Transients and Migrants ; Travel

<b>Objective:b> Drug-resistant tuberculosis (TB) may be resistant to one or multiple anti-TB drugs. We used generalized estimation equations to analysis the risk factors of drug-resistant TB and provide information for the establishment of a warning model for these non-independent data. <b>Methods:b> The drug susceptibility test and questionnaire survey were performed in sputum positive TB patients from 30 anti TB drug-resistance surveillance sites in Zhejiang province. The generalized estimation model was established by the GENMOD module of SAS, with resistance to 13 kinds of anti-TB drugs as dependent variables and possible influencing factors, such as age, having insurance, HBV infection status, and history of anti-TB drug intake, as independent variables. <b>Results:b> In this study, the probability of drug resistance at baseline level was 20.26%. Age, insurance, whether being co-infected with HBV, and treatment history or treatment withdrawal were statistically significantly correlated with anti-TB drug resistance. The prediction equation was established according to the influence degree of the factors mentioned above on drug resistance. <b>Conclusion:b> The generalized estimation equations can effectively and robustly analyze the correlated binary outcomes, and thus provide more comprehensive information for drug resistance risk factor evaluation and warning model establishment.
Antitubercular Agents/therapeutic use* ; Drug Resistance, Multiple, Bacterial ; Humans ; Models, Statistical ; Mycobacterium tuberculosis/drug effects* ; Risk Factors ; Sputum/microbiology* ; Surveys and Questionnaires ; Tuberculosis/epidemiology* ; Tuberculosis, Multidrug-Resistant

<b>Objective:b> To investigate the clinicopathological features of glomuvenous malformation (GVM). <b>Methods:b> Thirty-one cases of GVM diagnosed at the Henan Provincial People's Hospital from January 2011 to December 2021 were collected. Their clinical and pathological features were analyzed. The expression of relevant markers was examined using immunohistochemistry. The patients were also followed up. <b>Results:b> There were 16 males and 15 females in this study, with an average age of 11 years (range, 1-52 years). The locations of the disease included 13 cases in the limbs (8 cases in the upper limbs, 5 cases in the lower limbs), 9 cases in the trunks, and 9 cases in the foot (toes or subungual area). Twenty-seven of the cases were solitary and 4 were multifocal. The lesions were characterized by blue-purple papules or plaques on the skin surface, which grew slowly. The lumps became larger and appeared to be conspicuous. Microscopically, GVM mainly involved the dermis and subcutaneous tissue, with an overall ill-defined border. There were scattered or clustered irregular dilated vein-like lumens, with thin walls and various sizes. A single or multiple layers of relatively uniform cubic/glomus cells were present at the abnormal wall, with scattered small nests of the glomus cells. The endothelial cells in the wall of abnormal lumen were flat or absent. Immunohistochemistry showed that glomus cells strongly expressed SMA, h-caldesmon, and collagen IV. Malformed vascular endothelial cells expressed CD31, CD34 and ERG. No postoperative recurrence was found in the 12 cases. <b>Conclusions:b> GVM is an uncommon type of simple venous malformation in the superficial soft tissue and different from the classical glomus tumor. Morphologically, one or more layers of glomus cells grow around the dilated venous malformation-like lumen, which can be combined with common venous malformations.
Male ; Female ; Humans ; Child ; Glomus Tumor/surgery* ; Endothelial Cells/pathology* ; Paraganglioma, Extra-Adrenal/pathology* ; Immunohistochemistry