Retrospective Cross Sectional Study Design
A retrospective cross sectional study of risk factors and clinical spectrum of children admitted to hospital with pandemic h1n1 influenza as compared to influenza a.
Retrospective cross sectional study design. Prospective studies retrospective studies cross sectional studies summary study designs that can be analyzed with 2 tests one reason that 2 tests are so popular is that they can be used to analyze a wide variety of study designs in addition to controlled experiments they are widely used in epidemiology where investigators must conduct. Cohort study prospective study. Eg if the exposure predictor variable was measured before disease then the study is a.
List of the advantages of a cross sectional study 1. The main limitations of this study include its retrospective design single centre site the inability to calculate population based rates and that the number of. Epidemiologists frequently study the experience of a population over time to estimate the association between exposure and outcome.
A retrospective cohort study also called a historic cohort study is a longitudinal cohort study used in medical and psychological research a cohort of individuals that share a common exposure factor is compared with another group of equivalent individuals not exposed to that factor to determine the factor s influence on the incidence of a condition such as disease or death. The longitudinal study design would account for cholesterol levels at the onset of a walking regime and as the walking behaviour continued over time. Therefore a longitudinal study is more likely to suggest cause and effect relationships than a cross sectional study by virtue of its scope.
Cross sectional studies are much cheaper to perform than other options that are available to researchers. The cross sectional cohort study as it is termed here represents an a. These studies generally use case control prospective cohort or retrospective cohort designs.
That is because there is no follow up required with this type of research. It is an affordable study method. Retrospective study designs are often criticized for possible risk of biases to avoid this the researchers take sufficient sample size.
Cross sectional study one employing a single point of data collection for each participant or system being studied. Retrospective studies study an event situation or a phenomenon as it happened in the past. Prospective cross sectional is contradictory.