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Epidemiological characteristics of elevated blood pressure among middle and high school students aged 12-17 years: a cross-sectional study in Jiangsu Province, China, 2017-2018.

ABSTRACT: OBJECTIVE:In this study, we aimed to present the epidemiological characteristics of elevated blood pressure among middle and high school students aged 12-17 years in Jiangsu Province. SETTING:Hypertension, which is considered a rare disease in children, is an important early precursor to long-term cardiovascular damage, and elevated blood pressure in childhood is a strong predictor of hypertension in adulthood. PARTICIPANTS:Physical examination and questionnaire investigation among children aged 12-17 years in Jiangsu Province were conducted from 2017 to 2018. MAIN OUTCOME MEASURES:Physical measurements included height, weight, blood pressure and history of menarche/first spermatorrhoea. Questionnaire investigation included family type, delivery mode, lifestyle habits and psychological test. RESULTS:In our study we investigated 17 791 middle and high school students, consisting of 8701 female students and 9090 male students. The prevalence of screening elevated blood pressure among students aged 12-17 years was 20.0% (95% CI 19.2% to 20.9%) for female students and 22.3% (95% CI 21.5% to 23.2%) for male students. The prevalence of screening elevated blood pressure for urban male middle and high school students was higher than that of elevated blood pressure for rural male middle and high school students. However, similar phenomenon cannot be observed among female students. For both male and female students, body mass index (BMI), obesity/overweight and menarche/first spermatorrhoea can be a risk factor contributing to elevated blood pressure, and sleep time and regional distribution might be important factors that need to be investigated in depth. CONCLUSION:We found a relatively high prevalence of screening elevated blood pressure among students aged 12-17 years for both female and male students in Jiangsu Province. The risk factors can be BMI, obesity/overweight and menarche/first spermatorrhoea.

SUBMITTER: Zhang X

PROVIDER: S-EPMC6720134 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature

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Epidemiological characteristics of elevated blood pressure among middle and high school students aged 12-17 years: a cross-sectional study in Jiangsu Province, China, 2017-2018.

Zhang Xiyan X Yang Jie J Wang Yan Y Liu Weina W Yang Wenyi W Gao Liuwei L Schwertz Rainer R Welker Andreas A Zhang Fengyun F Zhou Yonglin Y

BMJ open 20190824 8

<h4>Objective</h4>In this study, we aimed to present the epidemiological characteristics of elevated blood pressure among middle and high school students aged 12-17 years in Jiangsu Province.<h4>Setting</h4>Hypertension, which is considered a rare disease in children, is an important early precursor to long-term cardiovascular damage, and elevated blood pressure in childhood is a strong predictor of hypertension in adulthood.<h4>Participants</h4>Physical examination and questionnaire investigati ...[more]

PMID: 31446405

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Project description:BackgroundWith the continuous progress of the epidemic of coronavirus disease 2019 (COVID-19) infection and the constant mutation of the virus strain, reinfection occurred in previously infected individuals and caused waves of the epidemic in many countries. Therefore, we aimed to explore the characteristics of COVID-19 reinfection during the epidemic period in Yangzhou and provide a scientific basis for assessing the COVID-19 situation and optimizing the allocation of medical resources.MethodsWe chose previously infected individuals of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) reported locally in Yangzhou city from January 2020 to November 30, 2022. A telephone follow-up of cases was conducted from February to March 2023 to collect the COVID-19 reinfection information. We conducted a face-to-face survey on that who met the definition of reinfection to collect information on clinical symptoms, vaccination status of COVID-19, and so on. Data were analyzed using SPSS 19.0.ResultsAmong the 999 eligible respondents (92.24% of all the participants), consisting of 42.28% males and 57.72% females, the reinfection incidence of females was significantly higher than that of male cases (χ2 = 5.197, P < 0.05); the ages of the respondents ranged from 1 to 91 years, with the mean age of 42.28 (standard deviation 22.73) years; the most of the sufferers were infected initially with Delta variant (56.88%), followed by the Omicron subvariants BA.1/BA.2 (39.52%). Among all the eligible respondents, 126 (12.61%) reported COVID-19 reinfection appearing during the epidemic period, and the intervals between infections were from 73 to 1,082 days. The earlier the initial infection occurred, the higher the reinfection incidence and the reinfection incidence was significantly increased when the interval was beyond 1 year (P < 0.01) .119 reinfection cases (94.4%) were symptomatic when the most common symptoms included fever (65.54%) and cough (61.34%); compared with the initial infection cases, the proportion of clinical symptoms in the reinfected cases was significantly higher (P < 0.01). The reinfection incidence of COVID-19 vaccination groups with different doses was statistically significant (P < 0.01). Fewer reinfections were observed among the respondents with three doses of COVID-19 vaccination compared to the respondents with two doses (χ2 = 14.595, P < 0.001) or without COVID-19 vaccination (χ2 =4.263, P = 0.039).ConclusionAfter the epidemic period of COVID-19, the reinfection incidence varied with different types of SARS-CoV-2 strains. The reinfection incidence was influenced by various factors such as virus characteristics, vaccination, epidemic prevention policies, and individual variations. As the SARS-CoV-2 continues to mutate, vaccination and appropriate personal protection have practical significance in reducing the risk of reinfection.

Dataset Information

Epidemiological characteristics of elevated blood pressure among middle and high school students aged 12-17 years: a cross-sectional study in Jiangsu Province, China, 2017-2018.

Publications

Epidemiological characteristics of elevated blood pressure among middle and high school students aged 12-17 years: a cross-sectional study in Jiangsu Province, China, 2017-2018.

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