PURPOSE: When patients with advanced cancer have minor children (age <18), their health-related quality of life is closely linked to their concerns about the impact of progressive illness and death on their children. The Parenting Concerns Questionnaire (PCQ), a validated measure for parents with cancer, does not capture the full range of concerns in advanced cancer. The aim of this was study was to adapt and establish psychometrics for the PCQ for advanced disease (PCQ-AD).
METHODS: After generating an initial item-bank, we conducted concept elicitation interviews with clinicians (n=8) and cognitive interviews with patients (n=23) for face validity. New items addressed concerns about impact of parental death, making every moment count, communication, and financial impact of cancer on children. We administered 21 candidate items to 151 parents with advanced cancer. We conducted confirmatory factor analysis (CFA), calculated internal consistency, and assessed convergent and known-groups validity.
RESULTS: We removed eight redundant items due to residual covariation between items. CFA of the 13-item PCQ-AD demonstrated satisfactory fit (CFI=0.971, TLI=0.966, RMSEA=0.081) and high internal consistency (Cronbach’s alpha=0.94, composite reliability=0.95). The PCQ-AD demonstrated convergent validity and known-groups validity; patients with poor functional status reported higher scores than patients with better functional status (Cohen’s d=0.56, p=0.002).
CONCLUSION: Adaptation of the PCQ yielded the addition of constructs important in advanced cancer. The PCQ-AD appears to be a reliable and valid measure of parenting concerns in advanced cancer, but future studies are needed to examine measure performance in diverse populations and responsiveness of the PCQ-AD to interventions.
