1.现况研究(prevalence study):又称为现况调查, 现况研究 又有普查、抽查和筛检三种;患病率研究 ...概念 研究目的与应 … www.yinghanhuyi.org|基于17个网页 3. 患病率调查 8-9 又称患病率调查(prevalence study),其本质属于现况研究,之所以被称为横断面研究,是强调现况研究是在时间序列上 … ...
Twitter Google Share on Facebook Thesaurus Medical Legal Financial Encyclopedia Wikipedia Related to prevalence:prevalence study prev·a·lence (prĕv′ə-ləns) n. 1.The condition of being prevalent. 2.MedicineThe total number of cases of a disease in a given population at a specific time...
Study Design: Cohort study (prevalence); Level of evidence, 2. 研究设计: 队列研究 ( 患病的 ), 证据水平:2级. 期刊摘选 In recent years theprevalenceof night markets in various and counties the most popular. 近年来盛行于各区县夜市,广受欢迎. ...
When we take a sample but wish to know about the population (such as prevalence of smoking) from where the sample is taken, we will not know the exact prevalence of the population as we do not study all members of the population. However, the sample study gives us an estimation which h...
AIMS: The present study aims to evaluate the prevalence of sexual problems among a Portuguese sample of gay men. Additionally, the role of sociodemographic predictors on gay men sexual problems will be addressed. METHODS: A total of 250 Portuguese gay men, from the general population, will ...
No study had high risk of bias. Twenty-two (29%) had moderate and 54 (71%) had low risk of bias. In apparently healthy individuals, the pooled prevalence of DENV was 15.6% (95% confidence interval 9.9–22.2), 3.5% (0.8–7.8), and 0.0% (0.0–0.5) respectively for immunoglobulins (...
This study examined the prevalence of addictive Internet use and analyzed the role of parental relationship in affecting this behavior among a random sample of adolescents in Wuhan, China. Students (n=1,101) were randomly selected from four schools, including 638 boys and 463 girls with a mean...
To present population-based data on type and extent of age-related lens opacities in the predominantly black population of the Barbados Eye Study.Prevalence study.The Barbados Eye Study included 4709 participants (84% of those eligible), who were identified from a random sample of Barbadian-born...
reputable news agency proofread Ok! by Elana Gotkine The prevalence of mental health disorders exceeds 11 percent for children and youth aged five to 24 years, according to astudypublished online Jan. 31 inJAMA Psychiatry. Ad Christian Kieling, M.D., Ph.D., from the Universidade Federal do...
The aim of this study is to determine the prevalence of and risk factors of dementia in the elderly with a low socio-economical status. The study is a cross-sectional and analytic study. Two hundred and four persons aged 65 years and above were selected by using the cluster sampling method...