title: Confirmatory factor analysis of the Sexual Adjustment and Body Image Scale in women with gynecologic cancer.
abstract: BACKGROUND
  There is evidence that treatment of gynecologic cancer (GC) negatively affects body image and sexuality. The Sexual Adjustment and Body Image Scale (SABIS-G) was developed to assess disturbances after diagnosis of GC. The objective of this study was to confirm the factor structure using a confirmatory factor analysis (CFA).
  
  
  METHODS
  Women with a history of GC completed the SABIS-G, a 9-item self-report measure. Ninety randomly selected participants were used for the exploratory factor analysis (EFA). CFA was performed on the remaining participants (n = 204) to confirm the factor structure developed in the EFA against a one-factor model. Test-retest reliability between baseline and follow-up scores was assessed using the intraclass correlation coefficient.
  
  
  RESULTS
  A total of 614 eligible patients were approached to participate: 398 (65%) consented to the study and 294 (74%) completed the SABIS-G. The median age was 53 years (range, 27-80 years) and the primary site of disease was: 120 (41%) uterine, 85 (29%) ovary, 82 (28%) cervix, and 7 (2%) other. A 2-factor structure was favored in the EFA, and the CFA fit indices indicated an excellent fit for the 2-factor measurement model (standardized root-mean-square residual = 0.05, non-normed fit index = 0.97, comparative fit index = 0.98). Internal consistency reliability was high for the Body Image (0.88) and Sexual Adjustment (0.91) subscales, as was test-retest reliability (0.89).
  
  
  CONCLUSIONS
  These results confirm the 2-factor structure of the SABIS-G and provide evidence that this is a valid and reliable instrument to measure changes in body image and sexuality in women after a diagnosis of GC.
authors.affiliation: Division of Gynecologic Oncology, Princess Margaret Hospital/Department of Obstetrics and Gynecology, University of Toronto, Toronto, Ontario, Canada. Sarah.Ferguson@uhn.ca
authors.forename: Sarah E
authors.initials: SE
authors.lastname: Ferguson
authors.forename: Sara
authors.initials: S
authors.lastname: Urowitz
authors.forename: Christine
authors.initials: C
authors.lastname: Massey
authors.forename: Marie
authors.initials: M
authors.lastname: Wegener
authors.forename: Naakwarley
authors.initials: N
authors.lastname: Quartey
authors.forename: David
authors.initials: D
authors.lastname: Wiljer
authors.forename: Catherine C
authors.initials: CC
authors.lastname: Classen
mesh_terms: D000223:Adaptation, Psychological; D000328:Adult; D000368:Aged; D001828:Body Image; D005163:Factor Analysis, Statistical; D005260:Female; D005833:Genital Neoplasms, Female / Q000523:psychology*; D006801:Humans; D008875:Middle Aged; D011581:Psychological Tests; D012725:Sexual Behavior; D011795:Surveys and Questionnaires