Background: Parents whose children are diagnosed with autism spectrum disorder
(ASD) experience disproportionately high stress. We examined magnitude, predictors
and interventions for parental stress while emphasising quantifiable determinants and
evidence-based strategies for mitigation. Methods: Following PRISMA 2020 standards,
twenty eligible studies (2000–2025) were reviewed across PubMed, Scopus and
PsycINFO. Effect sizes, odds ratios and correlation coefficients were extracted and
critically appraised for quality and heterogeneity. Results: Parents of children with
autism spectrum disorder (ASD) exhibited significantly higher stress than parents of
typically developing children (Hedges’ g = 1.58, 95% CI [1.16–2.00], p < .001) and
moderately higher than those with other disabilities (g = 0.64, 95% CI [0.25–1.03]). Mean
Parenting Stress Index scores exceeded clinical cut-offs (M = 91.4 ± 18.2 vs 72.1 ± 14.7, p <
.001). Externalizing behaviours in children emerged as the strongest predictors (r = 0.52–
0.68, p < .01), and longitudinal analyses confirmed reciprocal associations (β = 0.12–0.18).
Across assessments, mothers consistently reported higher levels of stress than fathers,
with a difference of 8.6 PSI points (p < .001). Socioeconomic strain and unmet service
needs increased odds of severe stress (OR = 2.8–3.4), whereas adaptive coping (β = −0.31)
and social support (r = −0.39) were protective. Mindfulness and parent-training programs
achieved moderate stress reduction (SMD = −0.47 to −0.82, I² = 67%), though follow-up
rarely exceeded three months. Conclusion: Parental stress in ASD caregiving is profound
and multifactorial, primarily behaviour-driven but socially moderated. Routine
screening, structured psychosocial support and sustainable intervention frameworks are
crucial for long-term caregiver well-being.
Keywords: autism spectrum disorder; parental stress; caregivers; mindfulness; coping;
social support.
