Reliability and validity of the Japanese version of the Parenting Concerns Questionnaire

Objective: Cancer patients with children are increasing; however, few studies have quantitatively assessed the parenting concerns of cancer patients with children. The Parenting Concerns Questionnaire was developed in the USA in 2012 and is the only instrument to measure the parenting concerns of cancer patients with children. This study aimed to develop a Japanese version of the Parenting Concerns Questionnaire and evaluate its reliability and validity. Methods: An Internet survey was conducted among cancer patients registered with 'Cancer Parents', an Internet community site for cancer patients, who have children aged <18 years, and 174 responses were recorded. Two weeks later, a retest was conducted, and responses were obtained from 87 patients. Results: Based on confirmatory factor analysis of the factor structure proposed by the authors of the original version, factors 'I. The impact of my illness on the child's daily life (five items)', 'II. The impact of my illness on the child's feelings (five items)' and 'III. Concerns about my parenting partner (five items)' were consistent with the original version. Cronbach's alpha coefficients for all items and by factors were 0.86, 0.79, 0.86 and 0.86. The Parenting Concerns Questionnaire total scores correlated with Hospital Anxiety and Depression Scale (r = 0.52), the Functional Assessment of Cancer Therapy General (r = -0.56), Family Assessment Device-General Functioning (r = 0.51) and Multidimensional Scale of Perceived Social Support (r = -0.47). The intraclass correlation coefficients for all items and by factors were 0.81, 0.71, 0.77 and 0.85. Conclusions: The Japanese version of the Parenting Concerns Questionnaire has satisfactory reliability and validity.