• Dilara Demirel and Serap Sivri.
• Department of Pediatrics, Hacettepe University, Ankara, Turkey.
• Medicine (Baltimore). 2024 Jun 21; 103 (25): e38678e38678.

AbstractTo assess stress levels and life hardships of patients with phenylketonuria and their parents. Between January 2020 and June 2020, 156 patients with PKU and their parents who arrived for regular examinations were included. Parents were asked to complete the parenting stress index, Zarit Burden Scale, and the Strengths and Difficulties Questionnaire (SDQ), and children over the age of 11 were asked to fill the Rosenberg Self-Esteem Scale, the State-Trait Anxiety Inventory, and the SDQ. We found a significant negative correlation between the Rosenberg Self-Esteem Scale and age at diagnosis (r = -0.27, P = .035), mother's age (r = -0.33, P = .009), and father's age (r = -0.38, P = .004). There was a significant positive correlation between the State-Trait Anxiety Inventory and patient's age (r = 0.36, P = .006), mother's age (r = 0.29, P = .031) and father's age (r = 0.38, P = .024). In the child form of the SDQ, emotional problems were significantly positively correlated with serum phenylalanine (Phe) levels at diagnosis (r = 0.35, P = .036), total points were significantly positively correlated with serum Phe levels at clinical examination (r = -0.34, P = .004), and social problems were significantly negatively correlated with the father's age (r = -0.34, P = .047). We found a significant positive correlation between the Zarit Burden Scale and number of siblings (r = 0.195, P = .023). In the parent form of the SDQ, emotional problems were significantly positively correlated with patient age (r = 0.217, P = .032), peer problems were significantly positively correlated with age at diagnosis (r = 0.211, P = .037), behavioral problems (r = 0.203, P = .045), and attention deficit and hyperactivity (r = 0.203, P = .045) were significantly positively correlated with serum Phe levels at diagnosis. Phenylketonuria is difficult to cope with both for the patients and their parents because of diet obligation, high expenditures for the formulas required for the diet, requirement of regular clinical examinations, and possible development of mental disability and psychiatric disorders. Patients and their families should be psychologically evaluated and support should be provided if needed.Copyright © 2024 the Author(s). Published by Wolters Kluwer Health, Inc.

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