title: The utility of a data-logging device for measuring adherence to home phototherapy.
abstract: BACKGROUND
  Treatment adherence to home phototherapy is not well characterized.
  
  
  OBJECTIVE
  To develop an accurate measure of home phototherapy unit usage.
  
  
  METHODS
  We tested a commercially available data logger containing a photo-sensor on two home phototherapy units.
  
  
  RESULTS
  The data logger accurately recorded actual usage and did not record stray light sources over the study period.
  
  
  CONCLUSIONS
  A data logger can accurately capture usage patterns for a home phototherapy unit. These devices could potentially be used in clinical trials to measure adherence to home phototherapy treatment regimens.
authors.affiliation: Department of Dermatology, Wake Forest University School of Medicine, Winston Salem, NC 27157-1071, USA.
authors.forename: Christopher B
authors.initials: CB
authors.lastname: Yelverton
authors.forename: Rajesh
authors.initials: R
authors.lastname: Balkrishnan
authors.forename: Steven R
authors.initials: SR
authors.lastname: Feldman
mesh_terms: D001330:Electronic Data Processing; D004867:Equipment Design; D006801:Humans; D010349:Patient Compliance; D011565:Psoriasis / Q000532:radiotherapy*; D014467:Ultraviolet Therapy / Q000295:instrumentation* / Q000706:statistics & numerical data*