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6th World Nursing and Healthcare Conference

London, UK

Wei-Wen Wu

Wei-Wen Wu

National Taipei University of Nursing and Health Sciences, Taiwan

Title: Development and psychometric testing of osteoporosis prevention self-efficacy scale – Adolescent form


Biography: Wei-Wen Wu


The advanced cancer treatment for pediatric cancer has increased adult survivors of childhood cancer. These survivors have reduced bone mineral density (BMD)1 while beginning to age.2 Self-efficacy is crucial for enhancing individual health behavior in osteoporosis prevention. 3,4 There is a paucity of valid and reliable scales to capture the self-efficacy for adolescents with cancer either in Taiwan or other countries. The purpose of this study was to develop and examine the psychometric properties of the Osteoporosis Prevention Self-Efficacy Scale – Adolescent Form (OPSES-AF). In the first stage, the content validity was established by six experts. In the second stage, confirmatory factor analysis (CFA) was performed. Data was collected from 120 adolescents who aged 13 – 20 and who were treated with cancer in the two medical centers from February to July 2015. The finalized OPSES-Af was a 7-item scale through CFA. Item responses were on a 5-point Likert scale ranging from 1 to 5 with total scores ranging from 7 to 35; higher scores reflected higher confidence to complete osteoporosis prevention activities. Construct validity was established through CFA that revealed a good fit of the model: RMSEA = .042 and p value of RMSEA = .51; NFI = .96; NNFI = .98; CFI = .99; IFI = .99; RFI = .93. Cronbach’s alpha was .80. Guttman split-half coefficient was .80. Spearman-Brown coefficient was .81. The OPSES-AF showed appropriate results for describing the self-efficacy of osteoporosis prevention for adolescents with cancer.