Results 41 to 50 of about 5,342,130 (395)

Research methodology topics: Cross-sectional studies

open access: yesJournal of Human Growth and Development, 2018
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

Cardio‐ankle vascular index and cardiovascular disease: Systematic review and meta‐analysis of prospective and cross‐sectional studies

open access: yesThe Journal of Clinical Hypertension, 2018
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

Prevalence and risk indicators for underlying dentin shadows among 12-year-old southern Brazilian schoolchildren

open access: yesBrazilian Oral Research, 2021
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]

open access: yesBiometrika (2018), 2015
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

open access: yesbioRxiv, 2019
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

open access: yesRevista da Sociedade Brasileira de Medicina Tropical
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

open access: yes, 2011
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

Prevalence rate of Internet addiction among Japanese college students: Two cross‐sectional studies and reconsideration of cut‐off points of Young's Internet Addiction Test in Japan

open access: yesPsychiatry and Clinical Neurosciences, 2018
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]

open access: yes, 2016
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

Odds Ratio or Prevalence Ratio? An Overview of Reported Statistical Methods and Appropriateness of Interpretations in Cross-sectional Studies with Dichotomous Outcomes in Veterinary Medicine

open access: yesFrontiers in Veterinary Science, 2017
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

Home - About - Disclaimer - Privacy