title: Psychosocial factors associated with the adherence to a colorectal cancer screening program.
abstract: BACKGROUND
  Although colorectal cancer (CRC) is one of the most commonly diagnosed cancers and a major cause of cancer related mortality, very little is known about why screening adherence rates are low. First-degree relatives of CRC patients are the largest group of individuals at increased risk of CRC. Psychosocial factors related to CRC screening adherence were examined in a sample of siblings of individuals diagnosed with CRC.
  
  
  METHODS
  To identify psychosocial factors related with participation in cancer screening examinations, 90 siblings of CRC patients were recruited. Adherence to screening by fecal occult blood test, flexible sigmoidoscopy and colonoscopy was the relevant factor. Sociodemographic variables, health locus of control (HLOC), perceived social support, knowledge about CRC and coping strategies were independent measures.
  
  
  RESULTS
  Significant differences were found in age, gender, retirement status, knowledge of sibling's illness, HLOC-powerful others, coping strategies (positive thinking, blaming others, seeking social support), perceived social support types (listening, affective, material) and social support sources (friends, work colleagues and health staff). Using stepwise logistic regression, the strongest predictor of adherence was knowledge of sibling's illness.
  
  
  CONCLUSIONS
  The findings suggest that effective strategies to increase participation in CRC screening may include efforts to improve knowledge of sibling's illness, material social support and advice from health staff.
authors.affiliation: Institut Universitari d'Investigació en Ciències de la Salut, Universitat de les Illes Balears, Palma de Mallorca, Spain. mgili@uib.es <mgili@uib.es>
authors.forename: Margalida
authors.initials: M
authors.lastname: Gili
authors.forename: Miquel
authors.initials: M
authors.lastname: Roca
authors.forename: Victoria
authors.initials: V
authors.lastname: Ferrer
authors.forename: Antoni
authors.initials: A
authors.lastname: Obrador
authors.forename: Elena
authors.initials: E
authors.lastname: Cabeza
mesh_terms: D000368:Aged; D001294:Attitude to Health; D015179:Colorectal Neoplasms / Q000175:diagnosis / Q000517:prevention & control / Q000523:psychology*; D003710:Demography; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D008297:Male; D008403:Mass Screening; D008875:Middle Aged; D010342:Patient Acceptance of Health Care; D010349:Patient Compliance; D011584:Psychology; D012944:Social Support; D011795:Surveys and Questionnaires