Objective To investigate the prevalent status of hypertensionamong thelow insurance crowd in Shiyan urban districts.Methods According to the demands and diagnosis standard in 'China Hypertension Prevention and Cure Manual,2005',24 840 residents with low insurance in urban districts were examined on their blood pressure,while investigated on history of disease,family history,occupation and awareness on hypertension by face to face interview.Results Of 24 840 residents with low insurance in Shiyan urban districts,5 295 cases(21.30%) were diagnosed as hypertension,and 1,350 hypertensives had family history of hypertension.Of 5 295 hypertensives,there were 371 cases aged below 40 yrs,1 747 aged between 40 and 49 yrs and 3 177 aged above 50.Meanwhile,there were 3 105 cases with grade I hypertension,1 563 with grade II and 627 with grade Ⅲ hypertension.Conclusion The total hypertension prevalent rate among low insurance crowd of Shiyan urban districts was higher and the awareness rate was also lower.It should strengthen education on this crowd.

Objective To investigate the epidemic factors of human brucellosis in Qiqihar from 2008 to 2014 so as to provide a scientific basis for prevention and control of the disease.Methods Descriptive epidemiologic method was used to analyze the monitoring results of human brucellosis in Qiqihar between 2008 and 2014.Indexes observed were:the incidence rate,the distribution of gender,age,occupation,area and time.Results From 2008 to 2014,there were a total of 15 003 cases of brucellosis covering all counties.The average incidence rate was 38.85/100 000.The average incidence rate of Meilisi Daur District was the highest,178.93/100 000.Cases occurred year around and peaked in March-July.The average incidence rate of male and female brucellosis was 57.53/100 000 and 19.35/100 000,respectively,and male patients were more than female (x2 =3 658.973,P ＜ 0.05).Most patients were in the 41-50 years old age group,and the number of patients was 4 386.The major occupation was farmer (herdsmen),which acount for 93.96％ (14 097/15 003).Conclusions Qiqihar is the epidemic area of brucellosis and has a higher incidence.Governments should pay nore attention to the epidemic of brucellosis.Health education and intervention measure for high-risk population should be strengthened and the professional team should be reinforced so as to reduce the incidence of brucellosis.

Peutz-Jeghers syndrome (PJS) presents in early childhood, and children have a higher risk of intussusception due to a smaller abdominal space than adults. Double-balloon enteroscopy (DBE) has been proven to be a safe and effective method for the diagnosis and treatment of small bowel lesions, but the efficacy and safety of its prophylactic polypectomy in children with PJS need to be determined. Data of 6 children (median age 10.6 years) diagnosed as having PJS from 2018 to 2020 were reviewed. DBE was performed 14 times, and 3 children were successfully relieved of intussusception after DBE treatment. The sizes of the resected intussusception polyps were 50 mm×60 mm, 40 mm×35 mm, and 50 mm×40 mm. Symptoms associated with polyps (abdominal pain, intussusception and obstruction) relieved after DBE in all children. No direct complications such as bleeding or perforation were found during the operation, and no recurrence of intussusception was found during follow-up. It can be seen that DBE polypectomy is safe and effective in the treatment of intussusception caused by PJS.

Background A variety of substances in drinking water are hazardous to human health and there are health risks associated with ingestion of these substances via drinking water. Objective To assess the carcinogenic and non-carcinogenic health risks of drinking water in Shijiazhuang from 2014 to 2021. Methods The collection, preservation, and testing of 10529 drinking water samples (including finished water and tap water) in Shijiazhuang were conducted from 2014 to 2021 and followed the Standard examination methods for drinking water (GB/T 5750—2006). The health risks of 15 chemicals in drinking water by oral exposure were assessed using the US Environmental Protection Agency's four-step method combined with Monte Carlo simulation. Results Among the 15 chemicals in drinking water assessed for their health risks at general exposure levels and high exposure levels via oral route in Shijiazhuang from 2014 to 2021, the leading three chemicals and related values of carcinogenic risks for adults were cadmium (1.11×10⁻⁴, 2.98×10⁻⁴), arsenic (5.88×10⁻⁵, 1.56×10⁻⁴), and chromium (5.48×10⁻⁵, 2.41×10⁻⁴), and the leading three chemicals and related values of non-carcinogenic risks were fluoride (3.57×10⁻¹, 6.57×10⁻¹), arsenic (1.31×10⁻¹, 3.47×10⁻¹), and nitrate (1.14×10⁻¹, 5.98×10⁻¹). The health risk values of trichloromethane and aluminum were elevated but still in acceptable ranges. Drinking water-associated health risk values were higher in males than in females, such as the cancer risk for general exposure levels of arsenic in men was 5.76×10⁻⁵, compared to 5.72×10⁻⁵ in women. The health risk values of cadmium, chromium, fluoride, nitrate, and other chemicals in ground water were higher than those of surface water, and the health risk values of trichloromethane and carbon tetrachloride were lower than those in surface water, such as the non-carcinogenic risk value for general exposure levels of fluoride in groundwater was 3.61×10⁻¹, compared to 2.27×10⁻¹ in surface water. Factors such as water transmission and distribution links, water period, and season affected the health risks of drinking water. The general exposure levels of trichloromethane in tap water had a higher carcinogenic risk of 1.75×10⁻⁷ compared with 8.17×10⁻⁸ in finished water. The general levels of arsenic exposure was higher in the dry season at 1.36×10⁻¹, compared with 1.26×10⁻¹ in the wet season. Conclusion Except that the carcinogenic risk of cadmium at general exposure levels in Shijiazhuang exceeds the maximum acceptable range recommended by US Environmental Protection Agency, the health risk values of the remaining 14 chemicals are below the maximum acceptable risk. The carcinogenic risk values of arsenic and chromium and the non-carcinogenic risk values of fluoride, arsenic, and nitrate are relatively high, but do not exceed the maximum acceptable ranges. The emphasis should be on the management of drinking water in highly exposed areas and populations.