10.6084/M9.FIGSHARE.C.6317478
Rachel Bryant-Waugh
Rachel
Bryant-Waugh
0000-0002-7449-6059
King's College London
South London and Maudsley NHS Foundation Trust
Casey M. Stern
Casey M.
Stern
0000-0002-0127-8667
Massachusetts General Hospital
Melissa J. Dreier
Melissa J.
Dreier
0000-0002-1466-0873
Massachusetts General Hospital
Rutgers, The State University of New Jersey
Nadia Micali
Nadia
Micali
0000-0001-5571-2273
Mental Health Services
University of Geneva
Lucy J. Cooke
Lucy J.
Cooke
0000-0002-5938-7110
Great Ormond Street Hospital for Children NHS Foundation Trust
Megan C. Kuhnle
Megan C.
Kuhnle
0000-0002-6003-489X
Boston University
Massachusetts General Hospital
Helen Burton Murray
Helen
Burton Murray
0000-0003-2059-3256
Massachusetts General Hospital
Harvard University
Shirley B. Wang
Shirley B.
Wang
0000-0002-8583-3014
Harvard University
Lauren Breithaupt
Lauren
Breithaupt
0000-0002-2439-6519
Massachusetts General Hospital
Harvard University
Athinoula A. Martinos Center for Biomedical Imaging
Kendra R. Becker
Kendra R.
Becker
0000-0002-8946-9977
Massachusetts General Hospital
Harvard University
Madhusmita Misra
Madhusmita
Misra
0000-0002-9405-2981
Massachusetts General Hospital
Harvard University
Elizabeth A. Lawson
Elizabeth A.
Lawson
0000-0001-8619-3349
Massachusetts General Hospital
Harvard University
Kamryn T. Eddy
Kamryn T.
Eddy
0000-0002-1586-0930
Massachusetts General Hospital
Harvard University
Jennifer J. Thomas
Jennifer J.
Thomas
0000-0003-2601-581X
Massachusetts General Hospital
Harvard University
Preliminary validation of the pica, ARFID and rumination disorder interview ARFID questionnaire (PARDI-AR-Q)
Abstract Background The Pica, ARFID, and Rumination Disorder Interview (PARDI) is a structured interview that can be used to determine diagnosis, presenting characteristics, and severity across three disorders, including avoidant/restrictive food intake disorder (ARFID). The purpose of this study was to evaluate the psychometric properties of a questionnaire focused specifically on ARFID (PARDI-AR-Q), which has the potential to provide related information with less participant burden. Methods Adolescents and adults (n = 71, ages 14–40 years) with ARFID (n = 42) and healthy control participants (HC, n = 29) completed the PARDI-AR-Q and other measures. A subset of the ARFID group (n = 27) also completed the PARDI interview. Results An exploratory factor analysis of proposed subscale items identified three factors corresponding to the ARFID phenotypes of avoidance based on the sensory characteristics of food, lack of interest in eating or food, and concern about aversive consequences of eating. Further analyses supported the internal consistency and convergent validity of the PARDI-AR-Q subscales, and subscale ratings on the questionnaire showed large and significant correlations (all p-values < 0.001; r’s ranging from 0.48 to 0.77) with the corresponding subscales on the interview. The ARFID group scored significantly higher than HC on all subscales. Furthermore, 90% of the ARFID group scored positive on the PARDI-AR-Q diagnostic algorithm while 93% of the HC scored negative. Conclusions Though replication in larger and more diverse samples is needed, findings provide early support for the validity of the PARDI-AR-Q as a self-report measure for possible ARFID in clinical or research settings.
Medicine
69999 Biological Sciences not elsewhere classified
Science Policy
111714 Mental Health
figshare
2022
2022-11-25
2022-11-25
Collection
10.1186/s40337-022-00706-7
CC BY 4.0