Comparison of the Quick Drinking Screen and the Alcohol Timeline Followback with Outpatient Alcohol Abusers

Abstract

Objective: A recent study comparing the Quick Drinking Screen (QDS) with the Timeline Followback (TLFB) found that in a nonclinical population of problem drinkers both measures produced reliable summary measures of drinking. The current study was designed to replicate these findings with a clinical population of alcohol abusers. The data were collected over three years (2004–2006). Method: Participants were 124 alcohol abusers who voluntarily enrolled for outpatient treatment. Over half (52.4%) were female with an average age of almost 40 years. About a third were married, had completed university, and a quarter were unemployed and nonwhite. Participants reported having a drinking problem for an average of 8.3 years, and reported drinking on about 5 days per week, averaging six drinks per drinking day. On two different occasions, they responded to two different sets of questions about their alcohol use. The instruments were: (a) the Quick Drinking Screen (QDS), a summary drinking measure, administered by telephone prior to the assessment; and (2) the TLFB self-administered by computer at the assessment. Results: As in a previous study, this study found that the QDS and the TLFB, two very different drinking measures, collected similar aggregate drinking data for four drinking variables in a clinical sample of alcohol abusers. Conclusions: When it is not necessary or not possible to gather detailed drinking data, the QDS produces reliable brief summary measures of drinking for problem drinkers. Generalization to nonclinical samples awaits further research.

Keywords:

• Timeline followback
• alcohol abusers
• quick drinking screen
• drinking assessment

Acknowledgments

Notes

^a one drink = 13.6 gm absolutealcohol.

^b

**p < .001.

^c

* p < .0125 with the Bonferroni adjustment to maintain the family wise error rate at a .05 level.

^d Because the TLFB collected data for 90 days and the QDS for the past year, the mean of days was modified to the proportion of days by dividing the mean of days drinking ≥ five drinks per day by 365 for the QDS and 90 for the TLFB to get comparable results.

*Portions of this paper were presented at the Annual Meeting of the American Psychological Association and the NIDA/NIAAA Early Career Investigators Poster and Social Hour, Washington, DC, August 2005.