Validation of the German version of the Family Reported Outcome Measure (FROM-16) to assess the impact of disease on the partner or family member.

Background: The Family Reported Outcome Measure (FROM-16) assesses the impact of a patient's chronic illness on the quality of life (QoL) of the patient's partner or family members. The aim of the study was to translate, explore the structure of and validate the FROM-16.

Methods: The questionnaire was translated from English into German (forward, backward, four independent translators).