TY - JOUR
T1 - Validation of the SCOFF questionnaire for screening of eating disorders among Mexican university students
AU - Sanchez-Armass, Omar
AU - Raffaelli, Marcela
AU - Andrade, Flavia Cristina Drumond
AU - Wiley, Angela R.
AU - Noyola, Aida Nacielli Morales
AU - Arguelles, Alejandra Cepeda
AU - Aradillas-Garcia, Celia
N1 - Manuscript preparation was supported by a Research Travel Grant from the Office of International Programs and Studies at the University of Illinois at Urbana-Champaign (to M. Raffaelli).
PY - 2017/3/1
Y1 - 2017/3/1
N2 - Purpose: To evaluate the criterion validity and diagnostic utility of the SCOFF, a brief eating disorder (ED) screening instrument, in a Mexican sample. Methods: The study was conducted in two phases in 2012. Phase I involved the administration of self-report measures [the SCOFF and the Eating Disorder Inventory-2, (EDI-2)] to 1057 students aged 17–56 years (M age = 21.0, SD = 3.4; 67 % female) from three colleges at the Universidad Autónoma de San Luis Potosí, Mexico. In Phase II, a random subsample of these students (n = 104) participated in the eating disorder examination, a structured interview that yields ED diagnoses. Analyses were conducted to evaluate the SCOFF’s criterion validity by examining (a) correlations between scores on the SCOFF and the EDI-2 and (b) the SCOFF’s ability to differentiate diagnosed ED cases and non-cases. Results: EDI-2 subscales showed high correlations with the SCOFF scores proving initial evidence of criterion validity. A score of two points on the SCOFF optimized the sensitivity (78 %) and specificity (84 %). With this cutoff, the SCOFF correctly classified over half the cases (PPV = 58 %) and screened out the majority of non-cases (NPV = 93 %) providing further evidence of criterion validity. Analyses were repeated separately for men and women, yielding gender-specific information on the SCOFF’s performance. Conclusions: Taken as a whole, results indicated that the SCOFF can be a useful tool for identifying Mexican university students who are at risk of eating disorders.
AB - Purpose: To evaluate the criterion validity and diagnostic utility of the SCOFF, a brief eating disorder (ED) screening instrument, in a Mexican sample. Methods: The study was conducted in two phases in 2012. Phase I involved the administration of self-report measures [the SCOFF and the Eating Disorder Inventory-2, (EDI-2)] to 1057 students aged 17–56 years (M age = 21.0, SD = 3.4; 67 % female) from three colleges at the Universidad Autónoma de San Luis Potosí, Mexico. In Phase II, a random subsample of these students (n = 104) participated in the eating disorder examination, a structured interview that yields ED diagnoses. Analyses were conducted to evaluate the SCOFF’s criterion validity by examining (a) correlations between scores on the SCOFF and the EDI-2 and (b) the SCOFF’s ability to differentiate diagnosed ED cases and non-cases. Results: EDI-2 subscales showed high correlations with the SCOFF scores proving initial evidence of criterion validity. A score of two points on the SCOFF optimized the sensitivity (78 %) and specificity (84 %). With this cutoff, the SCOFF correctly classified over half the cases (PPV = 58 %) and screened out the majority of non-cases (NPV = 93 %) providing further evidence of criterion validity. Analyses were repeated separately for men and women, yielding gender-specific information on the SCOFF’s performance. Conclusions: Taken as a whole, results indicated that the SCOFF can be a useful tool for identifying Mexican university students who are at risk of eating disorders.
KW - Eating disorder examination
KW - Eating disorder inventory
KW - Eating disorders
KW - Mexico
KW - SCOFF
KW - Validation
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U2 - 10.1007/s40519-016-0259-7
DO - 10.1007/s40519-016-0259-7
M3 - Article
C2 - 26928282
AN - SCOPUS:85014439936
SN - 1124-4909
VL - 22
SP - 153
EP - 160
JO - Eating and Weight Disorders
JF - Eating and Weight Disorders
IS - 1
ER -