title: Multicenter data acquisition made easy.
abstract: BACKGROUND
  The process for data collection in multicenter trials may be troublesome and expensive. We report our experience with the spreadsheet function in Googledocs for this purpose.
  
  
  METHODS
  In Googledocs the data manager creates a form similar to the paper case record form, which will function as a decentral data entry module. When the forms are submitted, they are presented in a spreadsheet in Googledocs, which can be exported to different standard spreadsheet formats.
  
  
  RESULTS
  For a multicenter randomized clinical trial with five different participating hospitals we created a decentral data entry module using the spreadsheet function in Googledocs. The study comprised 332 patients (clinicaltrials.gov identifier: NCT00815698) with five visits per patient. One person at each study site entered data from the original paper based case report forms which were kept at the study sites as originals. We did not experience any technical problems using the system.
  
  
  CONCLUSIONS
  The system allowed for decentral data entry, and it was easy to use, safe, and free of charge. The spreadsheet function in Googledocs may potentially replace current expensive solutions for data acquisition in multicenter trials.
  
  
  BACKGROUND
  clinicaltrials.gov NCT00815698.
authors.affiliation: Department of Surgery, Herlev Hospital, University of Copenhagen, Denmark. jaro@heh.regionh.dk
authors.forename: Jacob
authors.initials: J
authors.lastname: Rosenberg
authors.forename: Nadia Abdelaal
authors.initials: NA
authors.lastname: Henriksen
authors.forename: Lars Nannestad
authors.initials: LN
authors.lastname: Jørgensen
mesh_terms: D003195:Computer Communication Networks; D003625:Data Collection; D003628:Database Management Systems; D006801:Humans; D020407:Internet; D016347:Medical Records Systems, Computerized; D015337:Multicenter Studies as Topic; D016032:Randomized Controlled Trials as Topic; D012984:Software; D014584:User-Computer Interface