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Research methodology topics: Cross-sectional studies
In health the most frequent researches are done in the form of observational studies. In this type of scientific research the researchers did not interfere with the phenomena under study, only observed in a systematic and standardized manner, collecting ...
J. Zangirolami-Raimundo+2 more
semanticscholar +1 more source
The cardio‐ankle vascular index (CAVI) is a new measure of arterial stiffness that reflects the stiffness from the ascending aorta to the ankle arteries, and demonstrates little dependence on blood pressure during the evaluation. However, a comprehensive
K. Matsushita+10 more
semanticscholar +1 more source
This study aimed to assess the prevalence, extent, and associated factors of underlying dentin shadows (UDS) in the occlusal surfaces of permanent posterior teeth among 12-year-old schoolchildren from southern Brazil.
Patrícia Kolling MARQUEZAN+4 more
doaj +1 more source
Assessing replicability of findings across two studies of multiple features [PDF]
Replicability analysis aims to identify the findings that replicated across independent studies that examine the same features. We provide powerful novel replicability analysis procedures for two studies for FWER and for FDR control on the replicability claims. The suggested procedures first select the promising features from each study solely based on
arxiv +1 more source
Biomarkers for aging identified in cross-sectional studies tend to be non-causative
Biomarkers are important tools for diagnosis, prognosis, and identification of the causal factors of physiological conditions. Biomarkers are typically identified by correlating biological measurements with the status of a condition in a sample of ...
Paul G. Nelson, D. Promislow, J. Masel
semanticscholar +1 more source
Case series of sporotrichosis at a teaching hospital in Brazil
INTRODUCTION: Sporotrichosis is a subcutaneous fungal infection with a worldwide distribution and higher incidence in tropical and subtropical areas, such as the Brazilian territory, where it has been standing out due to its frequent epidemics.
Ana Maria Benvegnú+4 more
doaj +1 more source
Solar Corona Loop Studies with AIA: I. Cross-Sectional Temperature Structure
We present a first systematic study on the cross-sectional temperature structure of coronal loops using the six coronal temperature filters of the Atmospheric Imaging Assembly (AIA) instrument on the Solar Dynamics Observatory (SDO).
Aschwanden, Markus J., Boerner, Paul
core +1 more source
Due to variation in estimates of the prevalence of Internet addiction (IA) in prior research, we conducted two cross‐sectional studies over 2 years investigating the prevalence rate of IA in college students in Japan and reconsidered appropriate cut‐off ...
M. Tateno+5 more
semanticscholar +1 more source
A questionnaire to identify patellofemoral pain in the community: an exploration of measurement properties [PDF]
Background Community-based studies of patellofemoral pain (PFP) need a questionnaire tool that discriminates between those with and those without the condition.
C Brushøj+34 more
core +4 more sources
One of the most commonly observational study designs employed in veterinary is the cross-sectional study with binary outcomes. To measure an association with exposure, the use of prevalence ratios (PR) or odds ratios (OR) are possible.
Brayan Alexander Fonseca Martinez+5 more
semanticscholar +1 more source