Definition Prevalence of autism spectrum disorders (ASDs) consists in the number of people identified with an ASD in a defined population divided by the total number of people in the population at a given time. Prevalence is usually expressed as x people per 1,000 with an ASD in the area ...
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. ...
This demonstrates that even if we improve the quality of modelling and analysis (to reduce modelling bias through a better bias-variance trade-off17) or increase sample size (to reduce statistical noise), we cannot remove the intrinsic bias introduced by the choice of study design (design bias)...
Objective To study the prevalence, clinical and laparoscopic characteristics of endometriosis in infertile women. Study DesignThis is a hospital-based prospective study. PatientsFive hundred and two (502) patients underwent diagnostic laparoscopy for evaluation of cause for infertility. Staging of endometrio...
Differences in the populations studied, study design, ulcer definition, ulcer etiology, inclusion of foot ulcers, method of clinical assessment, and clinical validation of ulcer cases indicate that it is inappropriate to pool the estimates of prevalence. In most studies that considered age and sex,...
Studies published in peer-reviewed journals, involving any study design, but specifically exploring PU prevalence or incidence in adults or children, in any care setting, were included. Results: Fifty-five papers were data extracted, quality appraised and included in the qualitative synthesis of the...
PURPOSE: The objective of this study was to identify the prevalence and determinants of desire for and use of psychological support in patients with low vision. DESIGN: The study was cross-sectional, utilizing telephone-administered interviews. METHODS: Patients were recruited from Vision Australia and...
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 ...
Data were taken from a prospective longitudinal cohort study from the general population of Zurich, ... W Wicki,J Angst - 《European Archives of Psychiatry & Clinical Neuroscience》 被引量: 582发表: 1991年 CHILD ABUSE, NEGLECT, AND ADULT BEHAVIOR Using a prospective cohorts design, a large ...
FSW were at higher risk for Ct than non-FSW incarcerated women. These findings are being used to design targeted interventions to identify FSW, provide clinical and preventive services in jail and coordinate care with community partners. 展开 ...