Development and evaluation of a psychosocial adaptation questionnaire for women with breast cancer treated with adjuvant endocrine therapy: a single-centre, cross-sectional study in China.

ABSTRACT:

Objective

To develop and evaluate a psychosocial adaptation (PSA) questionnaire of women with breast cancer treated with adjuvant endocrine therapy (AET).

Design

Cross-sectional study.

Setting

Conducted study in a tertiary care centre in China from March to June 2021.

Participants

Women with breast cancer who have received AET.

Methods

Item development and extraction were based on literature, qualitative interviews (n=16) and assessment of content validity. 300 participants were recruited to perform item analysis, internal consistency reliability and exploratory factor analysis by cross-sectional studies. Finally, test-retest, criterion validity and confirmatory factor analysis of the questionnaire were performed with 96 respondents.

Results

An initial questionnaire was devised. The exploratory factor analysis demonstrated four factors: emotional response (six items), self-worth (five items), physical impacts (three items) and social communication (two items). The cumulative contribution of the factors was 65.057%. Cronbach's alpha coefficient of the questionnaire was 0.876. The correlation coefficient between the questionnaire and General Self-Efficacy Scale was 0.565 (p<0.01). A 16-item questionnaire and its factorial structure were confirmed.

Conclusions

The 16-item questionnaire had good reliability and validity. This could be a useful tool to assess the PSA levels among women with breast cancer treated with AET and provide a basis for further research.

SUBMITTER: Jiang H 

PROVIDER: S-EPMC9680142 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature