Historique
Article de Périodique
A new brief screen for adolescent substance abuse (1999)
Auteur(s) :
KNIGHT, K. R. ;
SHRIER, L. A. ;
BRAVENDER, T. D. ;
FARRELL, M. ;
VANDER BILT, J. ;
SHAFFER, H. J.
Année
1999
Page(s) :
591-596
Langue(s) :
Anglais
Refs biblio. :
35
Domaine :
Alcool / Alcohol ; Drogues illicites / Illicit drugs
Discipline :
EPI (Epidémiologie / Epidemiology)
Thésaurus mots-clés
PSYCHOMETRIE
;
ADOLESCENT
;
EPIDEMIOLOGIE DESCRIPTIVE
;
ECHELLE D'EVALUATION
;
REPERAGE PRECOCE
;
POSIT
;
CRAFFT
;
TEST
;
DEPISTAGE
;
EFFICACITE
Résumé :
OBJECTIVE. To develop a brief alcohol and other drug (AOD) screening test for adolescents.
METHODS. A 9-item test was constructed by combining and modifying items from several AOD assessments, and administered concurrently with the Personal Involvement With Chemicals Scale (PICS), the criterion standard.
SETTING. A hospital-based adolescent clinic.
SUBJECTS. Fourteen- to 18-year-old patients consecutively arriving for routine medical care who were known to have used AOD.
MEASURES. Internal consistency of the 9 items was calculated using the Cronbach α. The relationship between the brief screen and PICS raw score was determined by stepwise linear regression analysis. The PICS T score has been shown to correctly classify substance abuse treatment need as no treatment (T<35), brief office intervention (T=35-40), outpatient or short-term treatment (T=41-54), and inpatient or long-term treatment (T≥55). Sensitivity and specificity rates for predicting a PICS T score of 55 or higher were calculated from 2 × 2 tables.
RESULTS. Ninety-nine adolescents were tested (70.7% female, 36.4% black, 32.3% white, 19.2% Hispanic, mean age, 16.3 years). The 9 items had good internal consistency (Cronbach α=.79). Stepwise linear regression analysis identified 6 items whose total combined score was highly correlated with PICS (Pearson r=0.84, P<.01). This model correctly classified 86% of subjects according to the PICS criteria. Two or more yes answers had a sensitivity of 92.3% and specificity of 82.1% for intensive AOD treatment need. The 6 items were arranged into a mnemonic (CRAFFT).
CONCLUSIONS. Further research must confirm the test's psychometric properties in a general clinic population. However, CRAFFT seems promising as a brief AOD screening test.
METHODS. A 9-item test was constructed by combining and modifying items from several AOD assessments, and administered concurrently with the Personal Involvement With Chemicals Scale (PICS), the criterion standard.
SETTING. A hospital-based adolescent clinic.
SUBJECTS. Fourteen- to 18-year-old patients consecutively arriving for routine medical care who were known to have used AOD.
MEASURES. Internal consistency of the 9 items was calculated using the Cronbach α. The relationship between the brief screen and PICS raw score was determined by stepwise linear regression analysis. The PICS T score has been shown to correctly classify substance abuse treatment need as no treatment (T<35), brief office intervention (T=35-40), outpatient or short-term treatment (T=41-54), and inpatient or long-term treatment (T≥55). Sensitivity and specificity rates for predicting a PICS T score of 55 or higher were calculated from 2 × 2 tables.
RESULTS. Ninety-nine adolescents were tested (70.7% female, 36.4% black, 32.3% white, 19.2% Hispanic, mean age, 16.3 years). The 9 items had good internal consistency (Cronbach α=.79). Stepwise linear regression analysis identified 6 items whose total combined score was highly correlated with PICS (Pearson r=0.84, P<.01). This model correctly classified 86% of subjects according to the PICS criteria. Two or more yes answers had a sensitivity of 92.3% and specificity of 82.1% for intensive AOD treatment need. The 6 items were arranged into a mnemonic (CRAFFT).
CONCLUSIONS. Further research must confirm the test's psychometric properties in a general clinic population. However, CRAFFT seems promising as a brief AOD screening test.
Affiliation :
Children's Hospital. 300 Longwood Ave, Boston, MA 02115, USA