The Center for Outcomes Research in Surgery provides expertise in budgeting for clinical research, manages clinical research coordinator efforts, and provides training to clinical research coordinators for best practices and data abstraction. CORES maintains a library of clinical databases that are freely available to faculty and residents at IU School of Medicine.
Tutorials for standard analysis techniques including importing data, t-tests, ANOVA, correlation, linear regression, and logistic regression using SPSS, SAS or Stata.
Importing datasets from excel into SAS, SPSS, Stata; accessing data in Red Cap; creating new variables and datasets; updating/maintaining existing datasets as new data is generated
Geovisualization, geostatistics, spatial regression, point pattern analysis, regional analysis
Assistance reviewing grant applications, determining the statistical methods required to address the primary and secondary aims, writing, reviewing and/or editing the statistical analysis and power and sample size sections for proposals
Writing statistical methods sections describing the analyses performed, creating tables, figures and graphs, reviewing the results sections to ensure statistical analyses are accurately conveyed
Determining the appropriate statistical test for study aim(s) of interest, obtaining estimates of potential effect sizes from investigators, using potential sample sizes provided by the investigator to determine power or necessary sample size
Linear regression, t-tests, Mann-Whitney tests, chi-square tests, logistic regression, mixed models, survival analysis, trajectory analysis, ANOVA, ANOCOVA, casual analysis using propensity score matching, difference in difference, instrumental variable analysis in an observational setting.
Discussion of the original problem in order to determine the statistical needs, periodic clarification during the work process to ensure accuracy, preparing and relaying the results in non-statistical language, reviewing results with the investigator to be sure they know what the results mean
SAS and Stata programming for data management, sample size and power calculations, and statistical analyses
CORES Research Team
The Center for Outcomes Research in Surgery is led by Director Ben Zarzaur, MD, MPH.
Lava Timsina, MPH, PhD