The Collaborative Research Unit is dedicated to improving the health of the people of Cook County through collaboration, innovation, rigorous scientific inquiry and continuous learning.

We promote action research on highly prevalent problems affecting the health of the vulnerable and diverse patient population of Cook County. 
The scope of activities is broad—clinical care, health services research, medical education and community-based studies. 


The Collaborative Research Unit was created in 1998 to facilitate, coordinate, and lead interdisciplinary research within the Department of Medicine at John H. Stroger, Jr. Hospital of Cook County.
Its goal is to promote action research on highly prevalent problems affecting the health of the vulnerable and diverse patient population of Cook County. The scope of research, therefore, is necessarily broad—spanning health services research, clinical care, and community-based studies. Although focused on conducting collaborative research, the CRU also promotes research through consultation. 
Keiki Hinami, MD 
Romina Kee, MD 
William Trick, MD 


  • Lin, MY, Lyles-Banks RD, Lolans K, Hines DW, Spear JB, Petrak R, Trick WE, Weinstein RA, Hayden MK, for the CDC Prevention Epicenters Program. The importance of long-term acute care hospitals in the regional epidemiology of Klebsiella pneumoniae carbapenemase-producing Enterobacteriaceae. Clinical Infectious Diseases 2013; 57(9), 1246-1252. 
  • Kotwal VS, Attar BM, Carballo MD, Lee SS, Tarun K, Go B, Zhang H, Trick WE. Morning-only polyethylene glycol is non-inferior but less preferred by hospitalized patients as compared to split-dose bowel preparation. J Clin Gatroenterol 2013; In press. 
  • Trick WE. Decision making during healthcare-associated infection surveillance: A rationale for automation. Clin Infect Dis 2013. 
  • Galanter WL, Applebaum A, Boddipalli V, Kho A, Lin M, Meltzer D, Roberts A, Trick B, Walton SM, Lambert B. Migration of patients between five urban teaching hospitals in Chicago. J Med Syst, 2013, 37: ePub. 
  • Lucas BP, Trick WE, Evans AT, Mba B, Smith J, Das K, Clarke P, Varkey A, Mathew S, Weinstein RA. Effects of two- versus four-week attending physician inpatient rotations on unplanned patient revisits, trainees’ evaluations, and attending physician burnout. JAMA, 2012, 308:2199-2207. 
  • Johnson S, Maziade PJ, McFarland LV, Trick W, Donskey C, Currie B, Low DE, Goldstein EJC. Is primary prevention of Clostridium difficile infection possible with specific probiotics? Int J Infect Dis, published online Int J Infect Dis, 2012, 16:786-792. 
  • Kim S, Trick WE. A cohort study investigating compliance with guidelines for platelet monitoring during heparin thromboprophylaxis. Hosp Practice, 2012, 40:88-95. 
  • Klevens J, Kee R, Trick W, Garcia D, Angulo FR, Jones R, Sadowski LS. Effect of screening for partner violence on women’s quality of life: a randomized controlled trial. JAMA, 2012, 308:681-689. 
  • Popovich KJ, Lyles R, Hayes R, Hota B, Trick W, Weinstein RA, and Hayden MK. Relationship between chlorhexidine gluconate skin concentration and microbial density on the skin of critically ill patients bathed daily with chlorhexidine gluconate. Infect Contr Hosp Epidemiol, 2012, 33:889-896. 
  • Mayer J, Greene T, Howell J, Ying J, Rubin MA, Trick WE, and Samore MH. Agreement in classifying bloodstream infections among multiple reviewers conducting surveillance. Clin Infect Dis, 2012, 55: 364-370. 
  • Verda L, Muppidi MR, Sahni A, Saini A, Khanna S, Trick W, Borkowsky S, Gupta S, Das K. Comparison of electronic caresets to guide venous thromboembolism risk assessment. J Gen Intern Med, 2012, 27(Suppl 2):S148. 
  • Klevens J, Sadowski L, Kee R, Trick We, Garcia D. Comparison of screening and referral strategies for exposure to partner violence. Women’s Health Issues, 2012, 22: e45-e52. 
  • Trick WE, Samore M. Denominators for device infections: who and how to count. Infect Contr Hosp Epidemiol, 2011, 32: 641-643. 
  • Klevens J, Trick WE, Kee R, Angulo F, Garcia D, Sadowski LS. Concordance in the measurement of quality of life and health indicators between two methods of computer-assisted interviews: self-administered and by telephone. Qual Life Res, 2011, 20:1179-1186. 
  • Lin M, Hota B, Khan Y, Doherty J, Borlawsky T, Woeltje K, Stevenson K, Weinstein RA, Trick WE. Quality of traditional surveillance for public reporting of nosocomial bloodstream infection rates. JAMA, 2010, 304:2035-2041. 
  • Sadowski LS. Intimate Partner Violence. Chapter and updates in Women’s Health. Clinical Evidence, British Medical Journal since 2002. 2010 chapter-in press, Coauthored with Dr. Carri Casteel. Note: previous chapters co-authored with Klevens Joanne since 2002. 
  • Martin MA, Mosnaim GS, Rojas D, Hernandez O, Sadowski LS. Evaluation of an Asthma Medication Training Program for Immigrant Mexican Community Health Workers. Progress in Community Health Partnerships: Research, Education, and Action. In press 
  • Trick WE, Linn ES, Jones Z, Caquelin C, Kee R, Morita JY. Using Computer Decision Support to Increase Maternal Postpartum Tetanus, Diphtheria, and Acellular Pertussis Vaccination. Obstetrics & Gynecology. 116(1):51-57, July 2010. 
  • Grammer LC, Weiss KB, Kimmel LG, Curtis LM, Catrambone CD, Lyttle CS, Sharp LK, Sadowski LS. Obesity and Asthma Morbidity in a Community-Based Adult Cohort in a Large Urban Area: the Chicago Initiative to Raise Asthma Health Equity (CHIRAH). Journal of Asthma, 2010;47:491-495. 
  • Hota B, Lin M, Doherty J, Borlawsky T, Woeltje K, Stevenson K, Khan Y, Weinstein RA, Trick WE. Formulation of a model for automating infection surveillance: algorithmic detection of central-line associated bloodstream infection. J Am Med Inform Assoc, 2010, 17:42-48. 
  • Hota B, Harting B, Weinstein RA, Lyles RD, Bleasdale SC, Trick WE. Electronic algorithmic prediction of central vascular catheter use. Infect Contr Hosp Epidemiol, 2010, 31:4-11. 

Program Contact

Cook County Health Collaborative Research Unit
(312) 864-6000
(312) 864-9694