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Ann Surg Treat Res. 2016 Jan;90(1):43-8. doi: 10.4174/astr.2016.90.1.43. Epub 2015 Dec 29.

Reliability and validity of Korean version of modified: Yale preoperative anxiety scale.

Author information

1
Department of Surgery, Seoul National University Bundang Hospital, Seongnam, Korea.
2
Department of Child and Adolescent Psychiatrics, Seoul National University Hospital, Seoul, Korea.
3
Department of Ophthalmology, Seoul National University Bundang Hospital, Seongnam, Korea.
4
Department of Anesthesiology, Seoul National University Bundang Hospital, Seongnam, Korea.
5
Department of Pediatric Orthopedic Surgery, Seoul National University Bundang Hospital, Seongnam, Korea.
6
Department of Otorhinolaryngology-Head & Neck Surgery, Seoul National University Bundang Hospital, Seongnam, Korea.
7
Child and Adolescent, Seoul Top Ma-Eum Clinic, Seoul, Korea.
8
Department of Nursing, Seoul National University Bundang Hospital, Seongnam, Korea.
9
Department of Surgery, Kangwon National University School of Medicine, Chuncheon, Korea.

Abstract

PURPOSE:

The modified Yale Preoperative Anxiety Scale (mYPAS) was developed for evaluating the level of preoperative anxiety in children. The purpose of this study was to develop a Korean version of the mYPAS (K-mYPAS) and to establish its validity and reliability based on the Korean preoperative pediatric patients.

METHODS:

K-mYPAS was made through stringent back-translation procedure. Total enrolled 102 patients answered questionnaires of Korean version of State-Trait Anxiety Inventory for Children (K-STAIC), and were videotaped for 2 to 5 minutes before induction of anesthesia. Three observers of experienced psychiatrist, surgeon, and nurse analyzed videotape with K-mYPAS comparing to K-STAIC. The inter- and intraobservers reliability, concurrent and construct validity, sensitivity, specificity, and predictive value were analyzed.

RESULTS:

The value of Cronbach α for interobservers reliability was 0.939 and intraobserver reliability was statistically significant (P < 0.001). Concurrent and construct validity were also statistically significant (P < 0.001 and P < 0.001, respectively). Sensitivity, specificity, positive predictive value, negative predictive value, and accuracy were 81.3%, 91.4%, 81.3%, 91.4%, and 88.2%, respectively.

CONCLUSION:

The K-mYPAS had good psychometric properties and can be used as a reliable and valid instrument for the assessment of preoperative anxiety in children.

KEYWORDS:

Anxiety; Korean; Scale

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