title: Time-dependent recordkeeping fatigue among youth completing health diaries of unintentional injuries.
abstract: OBJECTIVE
  Increasingly, investigators are asking youth to self-report daily activity patterns and health outcomes in diary studies. This study assesses recordkeeping fatigue with respect to data quality and event reporting among youth participating in a health diary study.
  
  
  METHODS
  Unintentional injury data were collected during a 13-week longitudinal diary study of Ohio youth exposed to agricultural hazards. Two analyses were conducted using data from 2000. Analysis 1 examined trends in discernable recordkeeping errors (DREs) over the course of follow-up. Analysis 2 assessed trends in injury reporting over follow-up.
  
  
  RESULTS
  The percentage of items containing a DRE showed a slight, non-significant decline throughout follow-up. Injury reporting declined significantly (p<0.001) over follow-up.
  
  
  CONCLUSIONS
  There was no compelling evidence of respondent fatigue with respect to DREs. The observed decline in injury reporting is problematic because estimates of youth injury incidence in health diary studies may vary depending upon the length of the follow-up period.
authors.affiliation: Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia 30322, USA.
authors.forename: Matthew J
authors.initials: MJ
authors.lastname: Strickland
authors.forename: J Mac
authors.initials: JM
authors.lastname: Crawford
authors.forename: Lei
authors.initials: L
authors.lastname: Shen
authors.forename: J R
authors.initials: JR
authors.lastname: Wilkins
mesh_terms: D000293:Adolescent; D000382:Agricultural Workers' Diseases / Q000453:epidemiology / Q000517:prevention & control*; D002648:Child; D004493:Education; D015981:Epidemiologic Factors; D005260:Female; D006801:Humans; D008297:Male; D008499:Medical Records; D009820:Ohio; D011446:Prospective Studies; D012107:Research Design; D013997:Time Factors; D014743:Videotape Recording; D014947:Wounds and Injuries / Q000453:epidemiology / Q000517:prevention & control*