Kimlin Ashing-Giwa1, Chun Nok Lam, Bin Xie. 1. Center of Community Alliance for Research and Education (CCARE), Department of Population Sciences, City of Hope National Medical Center, San Dimas, CA 91773, USA. kashing@coh.org
Abstract
BACKGROUND: This study reports on the internal consistency and construct validity of the Functional Assessment of Cancer Therapy - General (FACT-G v.4) and 12-item Short Form Health Survey (SF-12 v.2) health-related quality of life (HRQOL) instruments with Chinese-American breast cancer survivors (BCS). METHODS: Participants completed mailed questionnaires at baseline and 12-month follow-up. HRQOL was measured using the FACT-G and the SF-12. The measures were evaluated by construct validity and reliability tests. Factor analyses were performed in a two-wave assessment through exploratory and confirmatory analyses at baseline and follow-up. RESULTS: Seventy-four Chinese-American BCS participated. Excellent internal consistency (α > 0.85) and good construct validity for the FACT-G (five factors) and the SF-12 (two factors) were observed. Factor structure of both measures accounted for 70% of the common variance in physical, social/family, emotional, and functional well-being subscales for the FACT-G and in physical and mental components for the SF-12. CONCLUSIONS: Our data demonstrated good internal consistency and construct validity of the measures. The psychometric findings demonstrate the utility of the FACT-G and the SF-12 to assess HRQOL among Chinese-American BCS.
BACKGROUND: This study reports on the internal consistency and construct validity of the Functional Assessment of Cancer Therapy - General (FACT-G v.4) and 12-item Short Form Health Survey (SF-12 v.2) health-related quality of life (HRQOL) instruments with Chinese-American breast cancer survivors (BCS). METHODS:Participants completed mailed questionnaires at baseline and 12-month follow-up. HRQOL was measured using the FACT-G and the SF-12. The measures were evaluated by construct validity and reliability tests. Factor analyses were performed in a two-wave assessment through exploratory and confirmatory analyses at baseline and follow-up. RESULTS: Seventy-four Chinese-American BCS participated. Excellent internal consistency (α > 0.85) and good construct validity for the FACT-G (five factors) and the SF-12 (two factors) were observed. Factor structure of both measures accounted for 70% of the common variance in physical, social/family, emotional, and functional well-being subscales for the FACT-G and in physical and mental components for the SF-12. CONCLUSIONS: Our data demonstrated good internal consistency and construct validity of the measures. The psychometric findings demonstrate the utility of the FACT-G and the SF-12 to assess HRQOL among Chinese-American BCS.
Authors: Nicole M Alberts; Wendy M Leisenring; Jessica S Flynn; Jillian Whitton; Todd M Gibson; Lindsay Jibb; Aaron McDonald; James Ford; Neema Moraveji; Blake F Dear; Kevin R Krull; Leslie L Robison; Jennifer N Stinson; Gregory T Armstrong Journal: JCO Clin Cancer Inform Date: 2020-11
Authors: Niharika Dixit; Urmimala Sarkar; Evelin Trejo; Paul Couey; Natalie A Rivadeneira; Barbara Ciccarelli; Nancy Burke Journal: Cancer Control Date: 2021 Jan-Dec Impact factor: 3.302