Satisfaction With Appearance Scale - SWAP: adaptation and validation for brazilian burn victims

Author(s)

Marina Paes Caltran

• Document type: Master's Dissertation
• Press: Ribeirão Preto.
• Institution: Universidade de São Paulo (USP). Escola de Enfermagem de Ribeirão Preto (PCARP/BC)
• Defense date: 2014-08-28

Examining board members

Lidia Aparecida Rossi; Rosana Aparecida Spadoti Dantas; Jayme Adriano Farina Junior

• Advisor: Lidia Aparecida Rossi

Abstract

Methodological study to adapt the Satisfaction With Appearance Scale - SWAP to Brazilian Portuguese and assess the validity and reliability of the adapted version in a sample of Brazilian burns patients. The SWAP assesses burns victims\' satisfaction with their body image. The higher the score, the worse the satisfaction with the body image. The adaptation process was developed as follows: translation of the original instrument, synthesis of the translations, review of the translation by an expert committee, back-translation, synthesis of the back-translations, comparison between the original version in English and the consensus version in English, assessment by the author of the original instrument, re-assessment by the expert committee, semantic validation of the items and pretest of the final version. The convergent construct validity was assessed using Pearson\'s correlation test between the SWAP score and the scores resulting from the measuring of correlated constructs - depression (Beck Depression Inventory); self-esteem (Rosenberg Self-Esteem Scale); health-related quality of life (Short Form Health Survey-36) and health status of burns victims (Burn Specific Health Scale-Revised). The discriminant validity was tested by means of known groups using Student\'s t-test for independent samples, associating the adapted SWAP score with the means obtained for gender, total body surface area and perceived visibility of the burn by other people. The construct validity related to the dimensionality was verified using Confirmatory Factor Analysis (CFA) and Exploratory Factor Analysis (EFA). The reliability was assessed by means of the internal consistency of the items (Cronbach\'s alpha) and the item-total correlation. The adopted significance level was 0.05. The participants in the validation phase of the SWAP were 106 burned patients with a mean age of 37.5 years (Standard Deviation - SD=13.2), receiving outpatient care at the Burns Unit of the Hospital das Clínicas da Faculdade de Medicina de Ribeirão Preto. In the convergent construct validity analysis, the correlations according to the hypotheses were moderate to strong and statistically significant between the SWAP scores and the correlated construct measures (r=0.30 to 0.77). The adapted SWAP was able to distinguish between the groups with perceived visibility of the burn to other people and perceived non-visibility (p<0.001). The internal consistency corresponded to 0.88 and the item-total correlation varied between moderate and strong (r=0.35 to 0.73). The first CFA with four factors did not show appropriate model adjustment indices (? 2 =165.2/ p<0.0001; ? 2 /g.l=2.335; AGFI=0.69; RMSEA=0.11; CFI=0.85). The EFA resulted in three factors with a total explained variance percentage of 63.2%. A second CFA was applied with three factors, which showed model adjustment indices that were closer to those indicated in the literature (? 2 =159.46/ p<0.0001; ? 2 /g.l=2.155; AGFI=0.73; RMSEA=0.10; CFI=0.86). In conclusion, the SWAP adapted to Portuguese was valid and reliable for use with Brazilian burns victims (AU)

• FAPESP's process: 12/08032-6 - SATISFACTION WITH APPEARANCE SACALE - SWAP: ADAPTATION AND VALIDATION FOR BRAZILIAN BURN VICTIMS
• Grantee: Marina Paes Caltran
• Support Opportunities: Scholarships in Brazil - Master