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The impact of phenylketonuria (PKU) on Quality of life (QoL) has been a topic of interest in recent research. This article reviews current researches on the impact of PKU on QoL. The review examines factors that may influence QoL, such as age, metabolic control, and treatment adherence. In this systematic review study, relevant articles were identified using a search strategy built with the keywords phenylketonuria, PKU, or hyperphenylalaninemia (or their synonyms) and QoL in Web of Science, Scopus, and PubMed databases. After identifying the articles, duplicates, reviews, scientific abstracts, articles published in languages other than English, and non relevant studies were excluded. The search strategy identified 951 records from databases, and after excluding duplicates, irrelevant studies, and those published in non English languages, 26 records were left that contained data on 1816 patients with PKU/hyperphenylalaninemia. The studies included both children/adolescents and adults. Overall, the studies found that the QoL of PKU patients was comparable to normative data, but some aspects such as emotional health and school functioning were lower. Metabolic control was found to significantly correlate with QoL. Younger patients and men had better QoL in several studies, while late treated patients and those with lower education had worse outcomes. It is concluded that QOL in patients with PKU is similar to the general population. However, given the chronic nature of the condition, it is important to pay special attention to their QoL. Poor QOL is associated with female gender, lower education, older age, and poor metabolic control. |
