Publication: A study of diagnostic accuracy of the Florida Obsessive-Compulsive Inventory – Thai Version (FOCI-T)
Issued Date
2015
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eng
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Mahidol University
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BioMed Central
Bibliographic Citation
BMC Psychiatry. Vol. 15, (2015), 251
Suggested Citation
Ratana Saipanish, Thanita Hiranyatheb, Sudawan Jullagate, Manote Lotrakul A study of diagnostic accuracy of the Florida Obsessive-Compulsive Inventory – Thai Version (FOCI-T). BMC Psychiatry. Vol. 15, (2015), 251. doi:10.1186/s12888-015-0643-2 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/2714
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Title
A study of diagnostic accuracy of the Florida Obsessive-Compulsive Inventory – Thai Version (FOCI-T)
Abstract
Background: The Florida Obsessive-Compulsive Inventory (FOCI) is a self-reported measure to assess the symptoms
and severity of obsessive-compulsive disorder (OCD), which can be completed in five minutes. Although preliminary
studies have shown its good psychometric properties, the study of receiver operating characteristics (ROC) to use it as
a screening tool has never been reported elsewhere. This study aimed to use the ROC analysis to determine the optimal
cut-off score of the Thai version of the FOCI (FOCI-T).
Methods: A total of 197 participants completed the FOCI-T, the Patient Health Questionnaire (PHQ-9), and the Pictorial
Thai Quality of Life (PTQL), and they were also interviewed with the Mini International Neuropsychiatric Interview (MINI)
for their diagnosis. The ROC analyses of the FOCI-T Severity Scores were computed to determine the best cut-off score.
Results:When the Thai version of the MINI was used in the interview, it was found that 38 participants were diagnosed
with OCD, 43 participants were non-OCD, and 116 participants were healthy adults. The ROC analyses indicated that the
FOCI-T Severity Scale could significantly distinguish OCD patients from non-OCD patients and healthy adults. The area
under curve was estimated to be 0.945 (95%CI = 0.903-0.972). A cut-off score of ≥5 provided the best sensitivity (0.92) and
specificity (0.82).
Conclusion: The Thai version of the Florida Obsessive-Compulsive Inventory has demonstrated its good predictive
abilities, so it could be used as a brief screening tool to detect obsessive-compulsive disorder patients with high
sensitivity and specificity.