Objectives: The first objective was to compare the quality of life of adult patients with anorectal malformations (ARM) or Hirschsprung's disease (HD) and to compare both groups with healthy people. And the second objective was to examine the factors that affect the quality of life of patients with ARM or HD, using a theoretical model in which patients' background characteristics explain quality of life via mediating disease-specific functioning and psychosocial functioning.
Methods: Three hundred and forty-one patients completed a questionnaire, which assessed sociodemographic characteristics, disease-specific and psychosocial functioning, and quality of life. Clinical factors were extracted from the medical records.
Results: Patients with ARM or Hirschsprung's disease did not differ in their quality of life. Compared to healthy people, both patient groups reported more limitations in their "overall" physical quality of life, but only patients with ARM reported impaired quality of life on several specific domains (e.g., physical role-functioning, pain). The model was largely accepted. Most striking were the strong effects of the psychosocial functioning factors in contrast to weak effects of the disease-specific "constipation" and "fecal continence" factors.
Conclusions: The quality of life of patients with ARM or Hirschsprung's disease was found to be comparable. Compared to healthy people, both patient groups encountered "overall" physical health problems, but only patients with ARM reported additional pain and limitations in role functioning due to physical problems. It appeared that psychosocial functioning had the most important effect on the quality of life of patients with ARM or Hirschsprung's disease, while fecal incontinence and constipation had almost no effect on their quality of life.