Table 2

Results of reliability and validity analysis for the PSA questionnaire among BC women with AET

FactorItemFactor loadingEigenvalueExplanatory variation (%)Cumulative explanatory variation (%)Cronbach’s alpha coefficientCorrelation coefficient
1Q1. I am worried about metastasis or recurrence0.8455.92036.99736.9970.8990.857*
Q2. Breast problems make me feel nervous0.802
Q3. I am worried that breast disease will get worse0.800
Q4. Breast problems make me feel scared0.795
Q5. I am worried about the side effects of the drug0.705
Q6. Breast problems make me very depressed0.670
2#Q7. I still think of myself as an attractive person0.7841.95412.21149.2080.7900.685*
#Q8. Overall, I am satisfied with myself0.761
#Q9. I think I am still a valuable person0.738
#Q10. I can share happiness and sadness with friends and colleagues0.660
#Q11. I am still interested in things I was interested in before0.649
3Q12. Breast problems affect my sex life0.7951.4689.17458.3820.6640.698*
Q13. I can not face the weight gain0.681
Q14. Disease affects my appearance and makes me unhappy0.638
4Q15. I am not willing to discuss breast problems with others0.8611.0686.67565.0570.7300.573*
Q16. I do not like others asking about my condition0.839
  • Confirmatory factor analysis.

  • *At level 0.01 (double tail), the correlation is significant. # is the reverse scoring item.

  • AET, adjuvant endocrine therapy; BC, breast cancer; PSA, psychosocial adaptation.