Objective: To understand the underreporting rate of death among residents in Zhejiang Province from 2016 to 2018, so as to provide a basis for improvement of death surveillance measures. Methods: Multi-stage random cluster sampling was used to select residents in 30 public health surveillance areas of Zhejiang Province and all the residents were investigated the general information and death conditions that occurred during the period 2016-2018 by door to door visit. The underreporting rate of death was calculated and descriptive methods were used to analyze the causes of underreporting deaths. Results: A total of 358 992 residents were investigated in 30 public health surveillance areas of Zhejiang Province. There were 63 underreporting deaths among 5 896 deaths, with an underreporting rate of 1.07%. The underreporting rate in men was 1.30%, which was higher than 0.75% in women ( P<0.05 ). The underreporting rate of residents aged 20 to <40 years was 6.74%, the highest among all the age groups ( P<0.05 ). The underreporting rate was 4.46% on the way to the hospital, the highest among all the places of death ( P<0.05 ). The underreporting rate in Wuxing District of Huzhou was 5.80%, the highest among all the surveillance areas. There were 25 cases of "late report or untimely review", accounting for 39.68%; 38 cases of "not report", accounting for 60.32%, of which 14 cases were caused by doctors forgetting to report, accounting for 22.22%. Conclusion The underreporting rate of death in Zhejiang Province from 2016 to 2018 is generally low. In response to underreporting deaths, multi-departmental collaboration should be promoted to effectively strengthen the reporting and management of routine death surveillance.

Objective: To analyze the trends in incidence and mortality of Alzheimer's disease (AD) in Zhejiang Province from 2003 to 2017, so as to provide the evidence for the development of AD prevention and control strategies. Methods: The data pertaining to the incidence and mortality of AD in China from 2003 to 2017 were collected from the Global Burden Disease Study, and standardized to the data of the Sixth National Population Census in China in 2010. The trends in incidence and mortality of AD were analyzed using annual percent change (APC) and average annual percent change ( AAPC ) in Zhejiang Province from 2003 to 2017. Results: The incidence of AD increased from 96.05/105 in 2003 to 140.96/105 in 2017 in Zhejiang Province, with AAPC of 2.776% ( P<0.05 ), and the greatest APC ( 3.419% ) was found during the period between 2003 and 2005 ( P<0.05 ). The standardized incidence of AD increased 102.06/105 in 2003 to 106.09/105 in 2017 in Zhejiang Province, with AAPC of 0.274% ( P<0.05 ), and the greatest APC ( 1.177% ) was measured during the period between 2003 and 2005 ( P<0.05). The mortality of AD increased from 24.60/105 in 2003 to 41.44/105 in 2017 in Zhejiang Province, with AAPC of 3.862% ( P<0.05 ), and the greatest APC (4.667%) was found during the period between 2005 and 2011 ( P<0.05 ). The standardized mortality of AD increased 26.83/105 in 2003 to 27.16/105 in 2017 in Zhejiang Province, with AAPC of 0.142% ( P>0.05 ), and the greatest APC ( 1.048% ) was measured during the period between 2005 and 2012 ( P<0.05 ). Conclusion Both the incidence and mortality of AD appeared a tendency towards a rise in Zhejiang Province from 2003 to 2017.

Objective : To explore the relationship between alcohol consumption and hypertension in adults of Zhejiang Province, so as to provide scientific evidence for the prevention and control of hypertension. Methods: Data were collected from 10 national surveillance sites in Zhejiang Province in the 2018 China Chronic Disease and Risk Factors Surveillance. The multivariate logistic regression model was used to explore the relationship between alcohol consumption and hypertension in adults of Zhejiang Province. Results : Among 5 908 people included, 2 641 were males, accounting for 50.38%; and 3 267 were females, accounting for 49.62%. There were 2 721 cases of hypertension ( 28.54% ). The number of the cases with no, light and excessive alcohol consumption was 3 945, 1 117 and 846, accounting for 66.28%, 23.65% and 10.07%, respectively, after complex sampling weighting. The results of the multivariate logistic regression model showed that compared with those with no alcohol consumption, the adults with excessive alcohol consumption had higher risk of hypertension ( OR=2.126, 95%CI: 1.649-2.741 ); men with light ( OR=1.875, 95%CI: 1.075-3.270 ) and excessive alcohol consumption ( OR=2.752, 95%CI: 2.021-3.748 ) had higher risk of hypertension; the 18-<45-year-old adults with light ( OR=2.441, 95%CI: 1.171-5.087 ) and excessive alcohol consumption ( OR=3.368, 95%CI: 1.609-7.049 ), and the ≥60-year-old adults with excessive alcohol consumption ( OR=1.632, 95%CI: 1.174-2.269 ) had higher risk of hypertension. Conclusions Light and excessive alcohol consumption are associated with hypertension in Zhejiang adults. The association is stronger between excessive alcohol consumption and hypertension than between light alcohol consumption and hypertension.

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 analyze the disease burden and risk factors of colorectal cancer in Zhejiang Province from 1990 to 2019, so as to provide the basis for prevention and control of colorectal cancer. Methods: Based on data of 2019 Global Burden of Disease (GDB 2019), disease burden and risk factors of colorectal cancer in Zhejiang Province from 1990 to 2019 was assessed using years of life lost (YLL), years lived with disability (YLD), disability-adjusted life years (DALY). Results: In 2019, the YLL rate, YLD rate and DALY rate caused by colorectal cancer in Zhejiang Province were 496.15/105, 31.81/105 and 527.96/105, respectively. From 1990 to 2019, the YLL rate, YLD rate and DALY rate caused by colorectal cancer in Zhejiang Province increased by 114.90%, 482.60% and 123.38%, respectively, showing increasing trends (average annual percent change values were =2.663, 6.283 and 2.800, respectively,all P<0.05). From 1990 to 2019, the YLL rate, YLD rate and DALY rate in the age groups of 15 to 49 years, 50 to 69 years and 70 years and older showed increasing trends (all P<0.05). In 1990, the top ten risk factors for colorectal cancer in Zhejiang Province were diet low in calcium, diet low in milk, diet low in whole grains, smoking, alcohol use, low physical activity, high fasting plasma glucose, diet high in red meat, diet low in fiber and high body mass index. In 2019, the top ten risk factors for colorectal cancer in Zhejiang Province were diet low in milk, diet low in whole grains, diet low in calcium, alcohol use, diet high in red meat, high body mass index, high fasting plasma glucose, low physical activity, diet low in fiber and diet high in processed meat. Conclusions The disease burden of colorectal cancer in Zhejiang Province showed an upward trend from 1990 to 2019. The top ten risk factors for colorectal cancer remained between 1990 and 2019, while there was a slight change in ranking.

Objective: To understand the prevalence and disease burden of major chronic diseases in the elderly in China and provide scientific basis for the prevention and control of chronic diseases and for the rational allocation of health resources. Methods: We analyzed the prevalence of chronic diseases in residents aged ≥60 years in China by using national and provincial surveillance data of chronic diseases and related risk factors in China. We conducted the analysis on the burden of chronic diseases in the elderly in China by using the data of global burden of disease. Results: The prevalence rates of hypertension, diabetes and hypercholesterolemia were 58.3%, 19.4% and 10.5% respectively in residents aged ≥60 years in China. Up to 75.8% of the residents aged ≥60 years had at least one chronic disease. The prevalence rate was higher in women than in men, higher in urban area than in rural area. With the increase of age, the prevalence rate of chronic diseases also increased. The top three chronic diseases with heavy disease burden in residents aged ≥70 years were stroke, myocardial infarction, cancer and chronic obstructive pulmonary disease. Conclusion The prevalence of major chronic diseases in the elderly is high with three quarters of the elderly suffering from at least one chronic disease, and the burden of chronic diseases is increasing.

Objective: To understand medical treatment seeking behaviors and its influencing factors in employed floating population in China and provide evidence for the development of health service policies for floating population. Methods: Data were from the national chronic disease and risk factor surveillance (floating population part) in 2012. Floating population were selected through multistage clustering sampling stratified by industries in 170 counties and districts from 31 provinces (autonomous regions, municipality directly under the central government) and Xinjiang Production and Construction Corps in the mainland of China. Information on demographic basic information, health status and health seeking behaviors six months before the investigation were collected through face-to-face questionnaire interview. The people aged 18-59 who had physical discomfort in the past six months was analyzed. After complex weighted analysis, multinomial logistic regression model was used to analyze the health seeking behavior and its influencing factors in the employed floating population. Results: A total of 11 134 suitable people aged 18-59 years were included in the study. The number and proportion of the people seeking medical treatment, having self-treatment and having no treatment were 4 950 (44.5%), 3 880 (34.8%) and 2 304 (20.7%), respectively. Multinomial logistic regression analysis showed that women were 1.275 times (95%CI: 1.100-1.477) more likely to seek medical treatment compared with men. The medical treatment seeking rates of floating population in the eastern, central and western areas were 2.153 times (95%CI: 1.669-2.777), 2.310 times (95%CI:1.777-3.002), 2.177 times (95%CI: 1.695-2.796) higher than that of floating population in northeastern area. In terms of seeking treatment, the proportion of the floating population with annual income of more than 25 000 yuan was 1.255 times (95%CI: 1.088-1.448) higher than that of the floating population with annual income of 25 000 yuan or less than 25 000 yuan. The proportion of the floating population with severe physical discomfort within the past six months was 8.076 times (95%CI: 6.091-10.707) higher than that of the floating population without severe physical discomfort and the proportion of the floating population who participated in medical insurance in both original living places and current living places was 1.566 times (95%CI: 1.250-1.961) higher than that of the floating population who did not participate in medical insurance in two places. The incidence ratio of medical care seeking and self-treatment in new generation of floating population was 1.369 (95%CI: 1.157-1.619) and 1.240 (95%CI: 1.042-1.475) compared with old generation of floating population. Compared with the widowed/divorced/separated, the incidence ratio of medical treatment seeking and self-treatment for the married/cohabited was 1.590 (95%CI: 1.057-2.391) and 1.815 (95%CI: 1.209-2.725). The more severe physical discomfort, the higher level medical institutions they chose (P<0.05). Conclusions The treatment rate in medical institutions of employed floating population was low in China. Gender, generation of floating population, marital status, area, annual income, severity of physical discomfort in past six months and the way to participate in medical insurance were the main factors affecting the medical treatment seeking behaviors of employed floating population.

Objective:To evaluate the early predictive value of serum procalcitonin (PCT) , C-reactive protein (CRP) , and white blood cell count (WBC) levels for pancreatic fistula after pancreaticoduodenectomy (PD) .Methods:Data of 93 patients undergoing PD in Department of Pancreatic Surgery at the First Affiliated Hospital of Xinjiang Medical University from Jan. 2017 to Nov. 2019 were retrospectively analyzed. The general information of patients before surgery and postoperative pancreatic fistula were recorded. The levels of serum PCT, CRP, and WBC before surgery and 1st, 3rd, and 5th days after operation were recorded. Patients were divided into pancreatic fistula group (63 cases) and non-pancreatic fistula group (30 cases) . The preoperative data were compared between the two groups. Box plot and the receiver operating characteristic curve (ROC) were drawn. The area under the ROC curve (AUC) was calculated. The sensitivity and specificity of PCT, CRP, and WBC levels in predicting pancreatic fistula alone and jointly were calculated.Results:There were no statistically significant differences in the age, gender, presence or absence of diabetes, total bilirubin, preoperative albumin, surgical time, or intraoperative bleeding in the general information of the pancreatic fistula group and the non-pancreatic fistula group. The difference in index (BMI) was statistically significant. The value of PCT, CRP, and WBC before operation and the value of PCT on the first day after operation were not statistically significant between the two groups ( P=0.424, 0.819, 0.484, and 0.072, respectively) . The PCT values on the 3rd and 5th days after surgery, the values of CRP and WBC on the 1st, 3rd, and 5th days after surgery were all statistically significant (all P values were<0.05) . The area under the ROC curve was jointly predicted by the three at the 3rd and 5th days after operation (AUC=0.792, 0.812) , and the sensitivity (62.9%, 71.4%) and specificity (83.3%, 80%) were better than the three alone. Conclusion:PCT, CRP, and WBC values on the 1st, 3rd, and 5th days after surgery alone have certain limitations in predicting pancreatic fistula, and the combined prediction of the three is more valuable.

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.