Fear of progression in parents of childhood cancer survivors: A Dyadic data analysis

OBJECTIVE Fear of progression (FoP), also referred to as fear of cancer recurrence, is gaining increasing interest in survivorship research as it constitutes a great burden for patients and relatives. However, only little is known about FoP in parents of childhood cancer survivors. The objective of this study was to investigate the impact of FoP on quality of life (QoL) in parental couples. METHODS We analyzed dyadic data of 197 couples parenting childhood cancer survivors (aged 0-17 years at diagnosis of leukemia or central nervous system tumor) after the end of intensive cancer treatment. The actor-partner interdependence model calculated by structural equation modelling was used to examine actor effects (effect of one's own FoP on one's own QoL) and partner effects (effect of one's own FoP on the partner's QoL). RESULTS Eighty-one percentage of the parents reported moderate or high FoP levels. Mothers reported higher FoP levels (p < .01) and lower overall QoL levels than fathers (p < .01). The results revealed a significantly positive intra-dyadic correlation between FoP of mothers and fathers of the same dyad (r = .431, p < .001). We found significantly negative actor effects for both mothers and fathers for the overall QoL (p < .001) as well as for several QoL subscales. No significant partner effects were found. CONCLUSIONS Most parents reported elevated levels of FoP. Our results show that FoP in parents of childhood cancer survivors is strongly negatively associated with QoL. Parental FoP should therefore be explored in future research and needs to be targeted by health care providers.