期刊
JOURNAL OF HUMAN NUTRITION AND DIETETICS
卷 35, 期 6, 页码 1016-1029出版社
WILEY
DOI: 10.1111/jhn.13015
关键词
adults; dietary behaviours; dietary management; knowledge; perceptions; phenylketonuria
资金
- National Institute for Health and Care Research
This study investigated the knowledge, perceptions, and dietary behaviors of adults with PKU in the UK. The results showed that knowledge was associated with dietary adherence, while perception of the diet did not predict adherence, except for concerns for long-term health and feeling well without following the diet.
Background Lifelong dietary treatment remains the mainstay for many with phenylketonuria (PKU); however, adherence is known to reduce with age. It remains unclear whether knowledge and perceptions of the PKU diet amongst adults with PKU influence dietary behaviours. Methods A nationwide questionnaire survey was performed to investigate the knowledge and perceptions, and associated diet behaviours of adults with PKU in the UK. The survey was sent to adults with PKU under the care of the host hospital and members of the National Society of PKU. Results One hundred and thirty-seven respondents (n = 78 females, 56.9%) completed the survey with a mean age of 34 years and 4 months (16-65 years). Sixty (43.8%) respondents had always followed a PKU diet, 39 (28.5%) returned to diet and 35 (25.5%) were off diet. Overall mean +/- SD knowledge score was 75.2% +/- 13.4%, with significantly higher scores for knowledge of PKU (80.7% +/- 16.2%) compared to knowledge specifically of the PKU diet (72.6% +/- 14.5%, p < 0.001). Knowledge was associated with dietary adherence. Respondents who always followed a PKU diet had similar knowledge to those who returned to diet, whereas respondents off diet had significantly lower scores. Perception of the diet was not a predictor of dietary adherence, with the exception of whether patients had concerns for their long-term health when on diet or felt well when not following a diet. Conclusions The present study highlights the importance of ongoing dietetic input in building knowledge and skills for dietary management. Further research is needed to understand the motivators and beliefs that influence dietary adherence.
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