Objective:To understand the epidemiological characteristics of fatal drowning in children in Zhejiang Province in 2022, analyze factors such as the swimming ability of children, the caregiver behavior at drowning site, types of first aid personnel and methods of first aid of unintentional fatal drowning and provide evidence for targeted intervention.Methods:Using the "Survey Form of Fatal Drowning Case in Children" designed by National Center for Chronic and Non-communicable Disease Control and Prevention of the China CDC, we collected case information of children aged 0-17 years who died due to drowning in Zhejiang in 2022 from medical history/death investigation records, telephone interviews, and home visits.Results:A total of 341 fatal drowning cases in children occurred in Zhejiang in 2022 and 330 cases were investigated (96.77%). The male to female of the cases was 2.33∶1, most cases were aged 15-17 years and 0-4 years, and 54.24% of fatal drowning cases occurred in children from other provinces. In the drowning cases, 83.33% were unintentional ones, and the proportion of intentional fatal drowning cases in children increased with age. Fatal drowning cases mainly occurred in open natural water bodies and public water storage facilities. More fatal drowning cases occurred in open natural water bodies in older children, while more fatal drowning cases occurred in public water storage facilities in younger children. In 275 children who died due to unintentional drowning, 73.09% could not swim, and only 1.09% were fully supervised by adults within an arm's length. First aid personnel, mainly medical staffs, bystanders and adult caregivers, were present for 47.63% fatal drowning cases. The proportion of the cases who had cardiopulmonary resuscitation as the first aid within 5 minutes was 2.18%.Conclusions:Drowning poses a serious threat to children's lives and there are differences in reasons and locations of fatal drowning in children in different age groups in Zhejiang Province in 2022. It is necessary to conduct to interventions to improve children's swimming skills, strengthen effective adult care and conduct health education about field first aid of drowning to reduce the incidence of drowning and related deaths in children.

OBJECTIVES: Polycystic ovary syndrome (PCOS) is one of the most common endocrine diseases in women with reproductive age, which is associated with hyperandrogenism, insulin resistance, and ovulatory dysfunction. Progesterone receptor membrane component 1 (PGRMC1) can mediate progesterone to inhibit the apoptosis of ovarian granulosa cells and the growth of follicles, and to induce glucolipid metabolism disorder in ovarian granulosa cells, which is closely related to the occurrence and development of PCOS. This study aims to determine the expression of PGRMC1 in serum, ovarian tissue, ovarian granulosa cells, and follicular fluid in PCOS patients and non-PCOS patients, analyze the value of PGRMC1 in diagnosis and prognosis evaluation of PCOS, and investigate its molecular mechanism on ovarian granulosa cell apoptosis and glucolipid metabolism. METHODS: A total of 123 patients were collected from the Department of Obstetrics and Gynecology in Guangdong Women and Children Hospital (hereinafter referred to as "our hospital") from August 2021 to March 2022 and divided into 3 groups: a PCOS pre-treatment group (n=42), a PCOS treatment group (n=36), and a control group (n=45). The level of PGRMC1 in serum was detected by enzyme linked immunosorbent assay (ELISA). The diagnostic and prognostic value of PGRMC1 was evaluated in patients with PCOS by receiver operating characteristic (ROC) curve. Sixty patients who underwent a laparoscopic surgery from the Department of Obstetrics and Gynecology in our hospital from January 2014 to December 2016 were collected and divided into a PCOS group and a control group (n=30). The expression and distribution of PGRMC1 protein in ovarian tissues were detected by immunohistochemical staining. Twenty-two patients were collected from Reproductive Medicine Center in our hospital from December 2020 to March 2021, and they divided into a PCOS group and a control group (n=11). ELISA was used to detect the level of PGRMC1 in follicular fluid; real-time RT-PCR was used to detect the expression level of PGRMC1 mRNA in ovarian granulosa cells. Human ovarian granular cell line KGN cells were divided into a scrambled group which was transfected with small interfering RNA (siRNA) without interference and a siPGRMC1 group which was transfected with specific siRNA targeting PGRMC1. The apoptotic rate of KGN cells was detected by flow cytometry. The mRNA expression levels of PGRMC1, insulin receptor (INSR), glucose transporter 4 (GLUT4), very low density lipoprotein receptor (VLDLR), and low density lipoprotein receptor (LDLR) were determined by real-time RT-PCR. RESULTS: The serum level of PGRMC1 in the PCOS pre-treatment group was significantly higher than that in the control group (P<0.001), and the serum level of PGRMC1 in the PCOS treatment group was significantly lower than that in the PCOS pre-treatment group (P<0.001). The areas under curve (AUC) of PGRMC1 for the diagnosing and prognosis evaluation of PCOS were 0.923 and 0.893, respectively, and the cut-off values were 620.32 and 814.70 pg/mL, respectively. The positive staining was observed on both ovarian granulosa cells and ovarian stroma, which the staining was deepest in the ovarian granulosa cells. The average optical density of PGRMC1 in the PCOS group was significantly increased in ovarian tissue and ovarian granulosa cells than that in the control group (both P<0.05). Compared with the control group, the PGRMC1 expression levels in ovarian granulosa cells and follicular fluid in the PCOS group were significantly up-regulated (P<0.001 and P<0.01, respectively). Compared with the scrambled group, the apoptotic rate of ovarian granulosa cells was significantly increased in the siPGRMC1 group (P<0.01), the mRNA expression levels of PGRMC1 and INSR in the siPGRMC1 group were significantly down-regulated (P<0.001 and P<0.05, respectively), and the mRNA expression levels of GLUT4, VLDLR and LDLR were significantly up-regulated (all P<0.05). CONCLUSIONS Serum level of PGRMC1 is increased in PCOS patients, and decreased after standard treatment. PGRMC1 could be used as molecular marker for diagnosis and prognosis evaluation of PCOS. PGRMC1 mainly localizes in ovarian granulosa cells and might play a key role in regulating ovarian granulosa cell apoptosis and glycolipid metabolism.
Child ; Pregnancy ; Humans ; Female ; Polycystic Ovary Syndrome ; Apoptosis ; Granulosa Cells ; Lipid Metabolism ; Membrane Proteins ; Receptors, Progesterone

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) was reported at the end of 2019 as a worldwide health concern causing a pandemic of unusual viral pneumonia and many other organ damages, which was defined by the World Health Organization as coronavirus disease 2019 (COVID-19). The pandemic is considered a significant threat to global public health till now. In this review, we have summarized the lessons learnt during the emergence and spread of SARS-CoV-2, including its prototype and variants. The overall clinical features of variants of concern (VOC), heterogeneity in the clinical manifestations, radiology and pathology of COVID-19 patients are also discussed, along with advances in therapeutic agents.
Humans ; COVID-19 ; SARS-CoV-2 ; Pneumonia, Viral/prevention & control* ; Global Health ; China/epidemiology*

Objective:To understand the epidemiological characteristics of metabolic syndrome(MetS) among adult residents in Zhejiang Province and compare three diagnostic criteria in adult residents.Methods:In this cross-sectisnal study participants were randomly chosen using multi-stage stratified cluster sampling method from 10 national chronic disease risk factor monitoring sites in Zhejiang Province of the 2018 China Chronic Disease and Risk Factors Surveillance Project. Demographics and information on chronic disease prevalence were obtained through questionnaire, physical measurements, and laboratory. After complex weighting of the data, an analysis and comparison of the prevalence of MetS under different diagnostic criteria among adult residents in Zhejiang Province was conducted.Results:A total of 5 369 adult residents were included, 2 411 males and 2 958 females. The prevalence of MetS using JIS, CDS and IDF diagnostic criteria was 33.62%, 25.32%, and 24.25%, respectively. The consistency rate between IDF and JIS was the highest(89.11%) and the Kappa value was 0.768( P<0.001). The consistency rate between IDF and CDS diagnostic criteria was 84.53%, and the Kappa value was 0.631( P<0.001). The consistency rate between JIS and CDS was the lowest(83.17%), and the Kappa value was 0.621( P<0.001). Under CDS diagnostic criteria, the prevalence of MetS was associated to gender, marital status, smoking and drinking. Conclusion:The prevalence of MetS is at a relatively high level among adult residents in Zhejiang province. The consistency between IDF and JIS diagnostic criteria is the highest. Screening for MetS should be strengthened to detect high-risk individuals early, reduce the risk of cardiovascular and cerebrovascular diseases and diabetes, and improve the quality of life of residents.

Objective:To explore the spatial autocorrelation and macro influencing factors of stroke mortality in Zhejiang Province in 2015-2020 and provide a scientific basis for stroke prevention and control strategy.Methods:The data on stroke death were obtained from Zhejiang Chronic Disease Surveillance System. The spatial distribution of stroke mortality was explored by mapping and spatial autocorrelation analysis. The spatial panel model analyzed the correlation between stroke mortality and socioeconomic and healthcare factors.Results:From 2015 to 2020, the average stroke mortality was 68.38/100 thousand. The standard mortality of stroke was high in the areas of east and low in the west, high in the south and low in the north. Moreover, positive spatial autocorrelation was observed (Moran's I=0.274-0.390, P<0.001). Standard mortality of stroke was negatively associated with per capita gross domestic product (GDP) ( β=-0.370, P<0.001), per capita health expenditure ( β=-0.116, P=0.021), number of beds per thousand population ( β=-0.161, P=0.030). Standard mortality of ischemic stroke was negatively associated with per capita GDP ( β=-0.310, P=0.002) and standard management rate of hypertension ( β=-0.462, P=0.011). Standard mortality of hemorrhagic stroke was negatively associated with per capita GDP ( β=-0.481, P<0.001), per capita health expenditure ( β=-0.184, P=0.001), number of beds per thousand population ( β=-0.288, P=0.001) and standard management rate of hypertension ( β=-0.336, P=0.029). Conclusions:A positive spatial correlation existed between stroke mortality in Zhejiang Province in 2015-2020. We must focus more on preventing and controlling strokes in relatively backward economic areas. Moreover, to reduce the mortality of stroke, increasing the investment of government medical and health funds, optimizing the allocation of medical resources, and improving the standard management rate of hypertension are important measures.

Objective:To analyze the epidemiological patterns of comorbidity of anxiety symptoms and depression symptoms among middle and high school students in Zhejiang Province and to provide evidence for making strategy and evaluation of intervention.Methods:Through a multi-stage sampling design, 28 043 students from 376 schools in 30 counties/districts were recruited and surveyed using anonymous self-administered questionnaires in classrooms under the supervision of trained staff between April and June 2022. Anxiety symptoms were assessed using generalized Anxiety Disorders 7-Item Scale, and depression symptoms were assessed using Patient Health Questionnaire 9-Item Depression Scale. A total of 27 004 students were included in the final analysis.Results:The overall prevalence of comorbidity of anxiety symptoms and depression symptoms was 11.54% (95% CI: 10.90%-12.19%), higher among girls (15.42%, 95% CI: 14.47%- 16.38%) than boys (8.05%, 95% CI: 7.43%-8.67%) ( P<0.001), higher among students living in rural areas (12.35%, 95% CI: 11.49%-13.22%) than those in urban areas (10.06%, 95% CI: 9.27%-10.86%) ( P<0.001). The prevalence of comorbidity of students attending middle school, academic high school, and vocational high school was 11.73% (95% CI: 10.82%-12.64%), 12.49% (95% CI: 11.20%- 13.79%), and 9.98% (95% CI: 8.68%-11.27%), respectively ( P=0.025). The prevalence of comorbidity was higher among students in divorced/widow/separated families (16.64%, 95% CI: 14.86%-18.43%) than those in intact families (10.82%, 95% CI: 10.14%-11.50%) ( P<0.001). The wealthier the families, the lower the prevalence of comorbidity ( P<0.001). The prevalence of comorbidity was higher among cigarettes smokers in the past 30 days (21.70%,95% CI: 18.24%- 25.16%) than non-smokers (11.13%, 95% CI: 10.51%-11.76%), higher among alcohol drinkers in the past 30 days (19.36%, 95% CI: 17.58%-21.14%) than non-drinkers (10.05%, 95% CI: 9.43%- 10.68%), higher among students engaging in physical fight in the past 12 months (18.42%, 95% CI: 16.75%-20.09%) than those without physical fight (10.45%, 95% CI: 9.81%-11.10%). The more frequently students engaged in physical exercise, the lower the prevalence of comorbidity ( P<0.001). The poorer the academic performance self-reported, the higher the prevalence of comorbidity ( P<0.001). Conclusion:More than one-tenth of middle and high school students in Zhejiang Province have comorbidity of anxiety symptoms and depression symptoms, and more attention should be paid to adolescent mental health.

Objective: To investigate the degree and influencing factors of glycosylated hemoglobin ( HbA1c ) control among patients with type 2 diabetes ( T2DM ) living in rural communities of Zhejiang Province, so as to provide the reference for optimizing the management of diabetes patients in rural communities. Methods: Permanent adult patients with T2DM that were registered and received standardized management in all communities of Jiashan County and Suichang County, and 6 communities of Yongkang City, Zhejiang Province in 2016 were recruited, and their demographic characteristics were captured from the health record system and chronic disease management system. The height, body weight, waist circumstance and blood pressure were measured, and HbA1c and blood lipid parameters were detected. The degree of HbA1c control ( <7% ) was analyzed, and its influencing factors were identified using a multivariable logistic regression model. Results: A total of 10 339 patients with T2DM were enrolled, including 4 520 men ( 43.72% ) and 5 819 women ( 56.28% ), with a mean age of ( 63.54±9.78 ) years and the mean course of diabetes of ( 6.36±4.73 ) years. The rate of HbA1c control was 47.89%. Multivariable logistic regression analysis showed that males ( OR=1.123, 95%CI: 1.024-1.233 ), region ( Suichang, OR=2.413, 95%CI: 2.106-2.765; Yongkang, OR=2.460, 95%CI: 2.188-2.767 ), course of disease ( 5-9 years, OR=1.724, 95%CI: 1.504-1.977; 10 years and longer, OR=2.881, 95%CI: 2.477-3.351 ), use of hypoglycemic drugs ( OR=1.203, 95%CI: 1.089-1.329 ), development of chronic complications ( OR=1.190, 95%CI: 1.027-1.379 ), uncontrolled blood pressure ( OR=1.140, 95%CI: 1.030-1.261 ), uncontrolled blood lipid ( OR=1.258, 95%CI: 1.104-1.433 ), and smoking ( OR=1.318, 95%CI: 1.165-1.491 ) were statistically associated with HbA1c control among T2DM patients. Conclusion The rate of HbA1c control was 47.89% among T2DM patients in rural communities of Zhejiang Province. HbA1c control should be given a high priority among men living in low-economic-level regions with long course of disease, use of hypoglycemic drugs, chronic complications, smoking, uncontrolled blood pressure and lipid.

Objective: To investigation the correlation between sleep duration and hypertension among adults in Zhejiang Province, and to provide scientific evidence for the prevention and control of hypertension. Methods: Permanent residents at age of 18 years and older were enrolled from 10 surveillance sites for risk factors of chronic diseases included in the 2018 China Chronic Diseases and Risk Factors Surveillance Program. Subjects' demographic characteristics, smoking, alcohol consumption, sleep duration and development of hypertension were collected, and following complex weighting calculations, the association between sleep duration and hypertension were examined using a multivariable logistic regression model. Results: Totally 5 770 adults were included, including 2 952 men (50.72%) and 3 178 women (49.28%), and the prevalence of hypertension was 29.39% (2 702 cases). There were 712 (8.37%), 1 077 (18.77%), 1 582 (28.68%), 1 717 (34.60%) and 682 adults (9.57%) with sleep duration of <6 h/d, 6 to 7 h/d, 7 to 8 h/d, 8 to 9 h/d and 9 h/d and longer, respectively. Taking the sleep duration of 7 to 8 h/d as a reference, multivariable logistic regression analysis identified a significant association between sleep duration of <6 h/d and the risk of hypertension (OR=1.709, 95%CI: 1.184-2.466), a significant association between sleep duration of 9 h/d and longer and the risk of hypertension (OR=1.369, 95%CI: 1.006-1.862) in men, significant associations between sleep duration of <6 h/d (OR=2.174, 95%CI: 1.528-3.093) and 6 to 7 h/d (OR=1.412, 95%CI: 1.078-1.850) and the risk of hypertension in women, and significant associations between sleep duration of <6 h/d (OR=3.095, 95%CI: 1.025-9.347) and 6 to 7 h/d (OR=2.046, 95%CI: 1.156-3.622) and the risk of hypertension in residents at ages of 18 to 44 years. Conclusions Short sleep duration may increase the risk of hypertension among adults at ages of 18 to 44 years in Zhejiang Province. Short sleep duration may increase the risk of hypertension in women and long sleep duration may increase the risk of hypertension in men.

Objective:To understand the incentive effect and influencing factors of the current economic incentive policy for medical alliances in Longhua District of Shenzhen(the alliance for short) on doctors′ willingness to work at primary medical institutions(the primary for short) from the perspective of mental account, and to explore the economic incentive effect of different economic incentive distribution methods on doctors′ willingness to work at the primary.Methods:The questionnaire was designed based on mental account theory. Random sampling was made in November 2019 for a questionnaire survey among doctors in two district-level medical institutions of the alliance in Longhua District of Shenzhen. The purpose was to analyze their inclination to work at the primary and their selection preferences for economic incentive distribution methods under the current economic incentive policy. The data were analyzed by descriptive analysis, and the influencing factors of doctors′ willingness to work at the primary were analyzed by χ2 test and binary logistic regression. Results:A total of 254 valid questionnaires were collected with an effective recovery rate of 90.7%. Among the respondents, 189(74.4%) were willing to work at the primary, 168(66.1%) chose to receive the economic incentives specifically for working at the primary, and 148 people(58.3%) hoped to receive such economic incentives immediately. Education background, self-rated economic income level of doctors and different payment methods of economic incentive for working at the primary had significant effects on their willingness to work at the primary( P<0.05). Conclusions:The current economic incentive policy of the alliance can meet the demands for economic incentives in terms of doctors′ material accounts, and doctors′ overall inclination to work at the primary was strong. If the amount of economic incentives is constant, doctors preferred to receive the economic incentives specifically, mainly affected by income accounts and additional income accounts. In addition, education and self-assessment of economic income level were important factors affecting the willingness of doctors to work at the primary, which may be affected by mental accounts other than material accounts.

Background::To date, there is no effective medicine to treat coronavirus disease 2019 (COVID-19), and the antiviral efficacy of arbidol in the treatment for COVID-19 remained equivocal and controversial. The purpose of this study was to evaluate the efficacy and safety of arbidol tablets in the treatment of COVID-19.Methods::This was a prospective, open-label, controlled and multicenter investigator-initiated trial involving adult patients with confirmed severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. Patients were stratified 1:2 to either standard-of-care (SOC) or SOC plus arbidol tablets (oral administration of 200 mg per time, three times a day for 14 days). The primary endpoint was negative conversion of SARS-CoV-2 within the first week. The rates and 95% confidential intervals were calculated for each variable.Results::A total of 99 patients with laboratory-confirmed SARS-CoV-2 infection were enrolled; 66 were assigned to the SOC plus arbidol tablets group, and 33 to the SOC group. The negative conversion rate of SARS-CoV-2 within the first week in patients receiving arbidol tablets was significantly higher than that of the SOC group (70.3% [45/64] vs. 42.4% [14/33]; difference of conversion rate 27.9%; 95% confidence interval [CI], 7.7%-48.1%; P = 0.008). Compared to those in the SOC group, patients receiving arbidol tablets had a shorter duration of clinical recovery (median 7.0 days vs. 12.0 days; hazard ratio [HR]: 1.877, 95% CI: 1.151-3.060, P = 0.006), symptom of fever (median 3.0 days vs. 12.0 days; HR: 18.990, 95% CI: 5.350-67.410, P < 0.001), as well as hospitalization (median 12.5 days vs. 20.0 days; P < 0.001). Moreover, the addition of arbidol tablets to SOC led to more rapid normalization of declined blood lymphocytes (median 10.0 days vs. 14.5 days; P > 0.05). The most common adverse event in the arbidol tablets group was the elevation of transaminase (5/200, 2.5%), and no one withdrew from the study due to adverse events or disease progression. Conclusions::SOC plus arbidol tablets significantly increase the negative conversion rate of SARS-CoV-2 within the first week and accelerate the recovery of COVID-19 patients. During the treatment with arbidol tablets, we find no significant serious adverse events.Trial registration::Chinese Clinical Trial Registry, NCT04260594, www.clinicaltrials.gov/ct2/show/NCT04260594?term= NCT04260594&draw=2&rank=1