Next Workshop: November 21-22, 2020


  • Date: Saturday November 21 and Sunday November 22, 2020 from 7:30 AM to 5:30 PM
  • Database:  Nationwide Inpatient Sample (NIS) and National Emergency Department Sample (NEDS)

                                           - Largest inpatient and ED databases in the United States, respectively

                                           - Free access to NIS and NEDS for the duration of the workshop

  • Software:  STATA

                                           - Free access to STATA for the duration of the workshop

                                           - Discounted STATA licences for residents and students after the workshop                      

  • Curriculum:

                             for the workshop schedule

  • Registration fee:

                                - Medical Students:              Early Bird: $430       Regular: $475

                                - Residents and fellows:      Early Bird: $550       Regular: $595

                                - Non-trainees:                     Early Bird: $675       Regular: $720

                                                Early Bird regiatration ends on November 9, 2020

                                               Workshop registration ends on November 15, 2020

Theoretical part: 

The theoretical part is a series of interactive lectures during which the statisitcal knowledge and scientific principles needed to conduct large database analysis research will presented. The topics covered are: 

  1. Overvue of Nationwide Inpatient Sample (NIS) and Nationwide Emergency Department Sample (NEDS):             - Understanding stratified sampling                                                                                                                                                                             -  NIS and NEDS data elements collected  
  2. Type of studies that can be conducted using NIS/NEDS
  3. Type of studies that cannot be conducted using NIS/NEDS                              
  4. In depth look at the ICD-9 and ICD-10 codes and their correct use                                                                         
  5. Hypothesis testing, p-values and confidence intervals
  6. Confounders and ways to adjust for them
  7. Linear regression (univariate and multivariate)           
  8. Logistic regression (univariate and multivariate
  9. Multivariate analysis model building

  • Basic statistics: mean, proportions, incidence, prevalance, etc...   : This is an optional online lecture that will be available to  participants 2 weeks prior to the workshop. It is highly recommended for participants with limited biostatistics knowledge                                                  

Hands-on part:

During the hands-on part, participants practice all steps involved in large database research:

 - locating NIS online and ordering it

 - Installing NIS on the computer

 - Using the most common STATA commands and do loops:

  • Creating new variables 
  • Deleting and modifying variables
  • Using STATA do loops to define the patient cohort and exposure of interest using ICD-9 codes
  • Using STATS do loops to calculate time from admission to a procedure
  • Calculating totals, means for continuous variables
  • Calculating proportions for dichotomous variables
  • Calculating p-values
  • Adjusting for confounders using linear and logistic regressions

- Participants will also go over the do file of an already published research article step by step to practice all parts of writing a STATA program for a complete research project

  • Participants should bring: a laptop computer for the hands on sessions

                                                             - STATA access is provided for Windows based and Mac computers

  • Workshop Reviews:

Below are quotes from spontaneous unsolicited emails we have received from participants after the Catalyst Large Database Analysis Research Workshops:

  •  "Attending the basic workshop was one of the best and most useful learning experiences of my life. I eagerly look forward to attending the advanced workshop." Akshay Goel, MD
  • "Thank you so much, Marc and Heather, the past weekend is the best one I have ever had since starting my residency. Very exciting intellectually" Si Li, MD
  • "Thank you so much for giving this workshop, it has helped me beyond what words can express." Eric Then, MD
  • "It was a great experience learning NIS and STATA last weekend. It is definitely once of the best workshops I have ever attended." Anil Kumar, MD
  • "I attended this weekend's workshop in NYC and I just wanted to say that it was a really wonderful experience and I learned so much. You and your wife were great teachers and it was a pleasure to work with you both." Alana Persaud, MD
  • "Dear Marc and Heather, thanks for the superb workshop in NYC a few weeks ago" Majid Shafiq, MD
  • " I never got a chance to thank you for your immense help. I am already working on 2 projects simultaneously. I will definitely update you about my progress. Thank you." Birendra Amgai, MD
  • "Thank you for an enlightening workshop. Will love to associate with you in research endeavors" Raj Bhadra MD
  • "Thank you for the wonderful basic workshop!" Ramya Patel, MD
  • "Thank you very much for giving us such a wonderful workshop. I have learned a lot! " Xiuhong Lyu, MD
  • "It was a great experience attending the workshop! I leaned a powerful tool to start my research!" Duo Jin, MD
  • "I thouroughly enjoyed the workshop and I found it very useful" Chika Okafor, MD
  • "Thank you for an amazing experience this weekend, I really enjoyed the workshop" Miguel Salazar, MD

  • COVID19 Precautions: all paticipants will be asked to wear a mask and will be seated 6 feet away from each other. Each ten articipants will be located in a seperate conference room to comply with the city and State mandates. The didactic part will be given live through zoom simultaneously in all conference rooms. During the hands on sessions,  instructors will be on site to answer questions and help with STATA troubleshooting
  • Sites: 

         - Mount Sinai Morningside Hospital in New York, NY (Internal participants only)
         - John H Stroger Jr Hospital of Cook County in Chicago, IL (Open to outside participants)
         - Wayne State University Hospital in Detroit, MI (Internal participants only)

  • The workshop registration fee includes the following:   

                      - Access to all the lectures and hands-on sessions for 2 days

                      - 16 AMA category 1 CME credits

                      - The complete STATA program (do file) of an already published article using NIS

                      - Free access to STATA for the duration of the workshop

                      - A USB flash drive that includes all lectures, hands-on sessions handouts and extra material                                             as well as ready to use STATA do files for the commands used

                      - A binder with all the lecture handouts and hands-on sessions handouts for note taking

                      - An attendance certificate

                     - Complimentary access to ThinkBig, the private online large database analysis research community