Wellbeing and quality of life among parents of individuals with Fontan physiology.

Purpose: To examine global and health-related quality of life (QOL) among parents of individuals with Fontan physiology and determine associations with sociodemographic, parent and child-related health, psychological, and relational factors.

Methods: Parents participating in the Australian and New Zealand Fontan Registry (ANZFR) QOL Study (N = 151, Parent Mean age = 47.9 ± 10.2 years, age range: 31.6-79.6 years, 66% women; child Mean age = 16.3 ± 8.8, age range: 6.9-48.7 years, 40% female) completed a series of validated measures. Health-related QOL was assessed using the PedsQL 4.0 Core Generic Scales for adults and global QOL was assessed using a visual analogue scale (0-10).

Results: Most parents (81%) reported good global QOL (≥ 6), consistent with broader population trends. Nearly one-third of parents (28%) reported at-risk health-related QOL (based on total PedsQL scores) with physical functioning most affected (44%). Psychological factors, including psychological stress and sense of coherence, emerged as the strongest correlates of global and health-related QOL, explaining an additional 16 to 30% of the variance (using marginal R²). Final models explained 35 and 57% and of the variance in global and health-related QOL, respectively (marginal R²). Relational factors, including perceived social support and family functioning contributed minimally when analyzed alongside psychological variables.

Conclusion: While parents of individuals with Fontan physiology report good global QOL, challenges in health-related QOL exist. We identified key psychological, sociodemographic, and health-related factors associated with parental QOL outcomes. These data may aid early identification of physical and psychosocial difficulties and guide targeted health resource allocation for this population.