title: An evaluation of recruitment methods utilized for a clinical trial with periodontal and diabetes enrollment criteria: the Diabetes and Periodontal Therapy Trial.
abstract: BACKGROUND
  Diabetes and its complications are a major United States public health concern.
  
  
  METHODS
  The Diabetes and Periodontal Therapy Trial (DPTT) evaluated whether non-surgical treatment of periodontal disease influenced diabetes management among persons with Type 2 diabetes and periodontitis. The aim of this study was to evaluate DPTT's many recruitment strategies in terms of enrollment success.
  
  
  CONCLUSIONS
  Targeted recruitment strategies were more effective in identifying individuals who met periodontal and diabetes eligibility criteria. Individuals eligible for a baseline visit/enrollment were more often male, had a younger age at diabetes diagnosis, a longer diabetes duration, more often Hispanic and less often African-American. Tracking and evaluating recruitment sources during study enrollment optimized recruitment methods to enroll a diverse participant population based upon gender, race and ethnicity.
authors.affiliation: Stony Brook University, Department of Preventive Medicine, HSC 3L086, Stony Brook, NY 11794-8036, USA.
authors.forename: Elinor R
authors.initials: ER
authors.lastname: Schoenfeld
authors.affiliation: Stony Brook University, Department of Preventive Medicine, HSC 3L086, Stony Brook, NY 11794-8036, USA.
authors.forename: Leslie
authors.initials: L
authors.lastname: Hyman
authors.affiliation: University of Minnesota, Division of Biostatistics School of Public Health, 2221 University Street SE, Suite 200, Minneapolis, MN 55414, USA.
authors.forename: Leslie Long
authors.initials: LL
authors.lastname: Simpson
authors.affiliation: University of Minnesota, Oral Health Clinical Research Ctr., Moos Tower, 17-116, 515 Delaware Street SE, Minneapolis, MN 55455, USA.
authors.forename: Bryan
authors.initials: B
authors.lastname: Michalowicz
authors.affiliation: University of Alabama at Birmingham, School of Dentistry, Department of Periodontology, Room 412-A 1919, 7th Avenue S., Birmingham, AL 35294-0007, UK.
authors.forename: Michael
authors.initials: M
authors.lastname: Reddy
authors.affiliation: Stony Brook University, Department of Medicine, Division of Endocrinology, HSC T15-50, Stony Brook, NY 11794-8154, USA.
authors.forename: Marie
authors.initials: M
authors.lastname: Gelato
authors.affiliation: Stony Brook University, Department of Preventive Medicine, HSC 3L086, Stony Brook, NY 11794-8036, USA.
authors.forename: Wei
authors.initials: W
authors.lastname: Hou
authors.affiliation: Department of Periodontology & Implant Dentistry, 345 East 24th Street, 3W, New York University College of Dentistry, New York, NY 10010, USA.
authors.forename: Steven P
authors.initials: SP
authors.lastname: Engebretson
authors.affiliation: Stony Brook University, Department of Preventive Medicine, HSC 3L086, Stony Brook, NY 11794-8036, USA.
authors.forename: Catherine
authors.initials: C
authors.lastname: Hytner
authors.affiliation: University of Minnesota, School of Dentistry, Moos Tower 7-364, 515 Delaware Street SE, Minneapolis, MN 55455-0357, USA.
authors.forename: Pat
authors.initials: P
authors.lastname: Lenton
keywords: Type 2; clinical trial; diabetes; diabetes mellitus; periodontal disease; periodontitis; recruitment