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Validation and Feasibility of the ASQ Among Pediatric Medical and Surgical Inpatients.

OBJECTIVES
To validate the use of a brief suicide risk screening tool, the Ask Suicide-Screening Questions (ASQ) instrument, in pediatric inpatient medical and surgical settings.


METHODS
Pediatric patients (10-21 years) hospitalized on inpatient medical and surgical units were recruited through convenience sampling for participation in a cross-sectional instrument validation study. The Suicidal Ideation Questionnaire was used as a standard criterion to validate the ASQ. Patient opinions about screening and parent consent to enroll in a suicide risk screening study were assessed to determine the feasibility of administering the ASQ in this venue.


RESULTS
A total of 600 pediatric medical inpatients were screened. Compared with the gold standard, the ASQ had strong psychometric properties, with a sensitivity of 96.67% (95% confidence interval [CI]: 82.78 to 99.92), a specificity of 91.05% (95% CI: 88.40 to 93.27), a negative predictive value of 99.81% (95% CI: 98.93 to 99.99), and an area under curve of 0.94 (95% CI: 0.90 to 0.97). Only 3 participants (0.5%) had acute positive screen results on the ASQ, endorsing current suicidal ideation, whereas 77 participants (12.8%) screened nonacute positive, and 48 participants (8.0%) reported a past suicide attempt.


CONCLUSIONS
The brief 4-item ASQ is a valid tool to detect elevated suicide risk in pediatric medical and surgical inpatients. Our findings also reveal that screening is feasible in terms of detection of suicidal thoughts and behaviors and is acceptable to parents and patients.