Validation of a questionnaire for assessing fecal impaction in the elderly: impact of cognitive impairment, and using a proxy

Background Studies on the epidemiology of fecal impaction are limited by the absence of a valid and reliable instrument to identify the condition in the elderly. Our aim is to validate a questionnaire for identifying fecal impaction in the elderly and to assess the impact of cognitive impairment and the aid of a proxy on its reliability.