Psychometric analysis of the Patient Assessment of Own Functioning Inventory in women with breast cancer.
OBJECTIVE
The purpose of this secondary analysis was to examine the reliability and validity of the Patient Assessment of Own Functioning Inventory (PAOFI) in postmenopausal women with early-stage breast cancer before adjuvant therapy.


METHODS
Data from 259 postmenopausal women with early-stage breast cancer before adjuvant therapy were analyzed. Exploratory factor analysis was used to uncover the PAOFI's underlying factor structure and reliability coefficients were computed for each subscale.


RESULTS
5 factors measuring perceived cognitive functioning had eigenvalues > 1 and accounted for 54% of the extracted variance. Subscale reliability coefficients ranged from .572 to .883.


CONCLUSIONS
Psychometric evaluation of the PAOFI provided evidence of reliability and construct validity in this population. Additional studies are needed to confirm the 5-factor structure.
Magee-Womens Research Institute, Pittsburgh, PA 15213, USA. mjb111@pitt.edu
Mandy J
MJ
Bell
Lauren
L
Terhorst
Catherine M
CM
Bender
D000203:Activities of Daily Living; D000328:Adult; D000368:Aged; D000077384:Anastrozole; D047072:Aromatase Inhibitors / Q000627:therapeutic use; D001943:Breast Neoplasms / Q000188:drug therapy / Q000523:psychology*; D016009:Chi-Square Distribution; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D008875:Middle Aged; D009483:Neuropsychological Tests; D009570:Nitriles / Q000627:therapeutic use; D017698:Postmenopause; D011446:Prospective Studies; D011594:Psychometrics; D011788:Quality of Life; D015203:Reproducibility of Results; D014230:Triazoles / Q000627:therapeutic use
D047072:Aromatase Inhibitors; D009570:Nitriles; D014230:Triazoles; D000077384:Anastrozole