title: Preoperative sexual function in women with rectal cancer.
abstract: BACKGROUND
  Even though sexual dysfunction has been reported after rectal cancer treatment, information on preoperative sexual function is scarce, particularly in female patients.
  
  
  OBJECTIVE
  To describe preoperative sexual function in women with rectal cancer, and to analyse potential sources of bias.
  
  
  METHODS
  The Female Sexual Function Index (FSFI) was administered to women with newly diagnosed non-metastatic rectal cancer, irrespective of whether they were sexually active or not. FSFI total and domain scores were calculated for women with complete responses to the corresponding items. Data were compared for those who did and did not complete all the FSFI domains, and for women in the study cohort, and those who were eligible for inclusion but not included.
  
  
  RESULTS
  Sexual inactivity was common. Mean FSFI total score was low (16.4 ± 10.6 SD) among the women who completed all six FSFI domains. The proportion of women who had a partner was higher in this group compared with those who did not complete all the domains (49 of 57 vs 7 of 25, p < 0.001). Eighty-two of the 157 women eligible for inclusion were included. Included women were younger (p = 0.002) and had less co-morbidity than those who were not included (p = 0.025).
  
  
  CONCLUSIONS
  The low FSFI total score indicates sexual dysfunction. However, the use of FSFI in both women who are and who are not sexually active complicates interpretation of the data and may result in an information bias hampering internal validity. External validity may be limited by selection bias.
authors: Department of Molecular Medicine and Surgery, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden; Department of Surgery, Ersta Hospital, Stockholm, Sweden. Electronic address: josefin.segelman@ki.se.
authors: J
authors: J
authors: Segelman
authors: A
authors: A
authors: Martling
authors: M
authors: M
authors: Machado
authors: T
authors: T
authors: Holm
authors: K
authors: K
authors: Bergmark
authors: A
authors: A
authors: Flöter Rådestad
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D008207:Lymphatic Metastasis; D008875:Middle Aged; D012004:Rectal Neoplasms / Q000150:complications* / Q000601:surgery; D012735:Sexual Dysfunction, Physiological / Q000453:epidemiology / Q000209:etiology*; D011795:Surveys and Questionnaires
keywords: Rectal cancer; Sexual function; Women