Reliability of a Timeline Followback measure of caffeinated coffee consumption

BACKGROUND AND AIMS

The Timeline Followback (TLFB) was initially developed to collect retrospective self- reports of alcohol and drug use. Since its development, several peer-reviewed papers have supported it as a sound psychometric measure for substance use and for several other behaviors. Worldwide, coffee is one of the most widely consumed beverages. Although early epidemiological research suggested that drinking coffee is associated with some health problems, several recent studies have found moderate coffee consumption to have an inverse association with mortality. Because of its widespread use, a psychometrically sound measure of coffee consumption would help better inform research and public health policies.

DESIGN

This study investigated the test-retest reliability of a version of the TLFB modified to assess coffee consumption.

SETTING AND PARTICIPANTS

98 clinical psychology doctoral students completed a 30-day coffee TLFB on two occasions separated by 14 days.

MEASUREMENTS

Participants used a computerized Survey Monkey™ version of the coffee TLFB to report their caffeinated coffee consumption for the same 30-day interval. For the first administration participants reported their consumption for the preceding 30 days, and for the second administration they reported on the preceding 45 days which included the earlier reporting interval.

FINDINGS

Reliability coefficients were found to be very high (0.90-0.97).

CONCLUSIONS

As with other substance use versions of the TLFB, these results suggest the TLFB is a good method for measuring coffee consumption in research studies and in primary health care settings where such data may be important.

Reducing alcohol consumption to minimize weight gain and facilitate smoking cessation among military beneficiaries

INTRODUCTION

Smoking cessation-related weight gain can have significant negative health and career consequences for military personnel. Alcohol reduction combined with smoking cessation may decrease weight gain and relapse.

METHOD

A randomized clinical trial of military beneficiaries compared a standard smoking cessation (i.e., brief informational) intervention (N=159), with a brief motivational smoking cessation intervention that emphasized reduced drinking to lessen caloric intake and minimize weight gain (N=158).

RESULTS

Participants who received the motivational intervention were significantly more likely to quit smoking at the 3-month follow-up (p=0.02), but the differences were not maintained at 6 (p=0.18) or 12months (p=0.16). Neither weight change nor alcohol reduction distinguished the 2 groups. Smoking cessation rates at 12months (motivational group=32.91%, informational group=25.79%) were comparable to previous studies, but successful cessation was not mediated by reduced drinking.

CONCLUSIONS

Alcohol reduction combined with smoking cessation did not result in decreased weight gain or improved outcomes.

Preventing Alcohol-Exposed Pregnancies: A Randomized Controlled Trial of a Self-Administered Version of Project CHOICES with College Students and Nonstudents

BACKGROUND

Alcohol-exposed pregnancies (AEPs) are a preventable cause of birth defects and developmental disabilities for which many women are at risk. The initial 5-session Project CHOICES intervention was found to prevent AEPs. In the ensuing decade, there have been several additional CHOICES-like studies. This study, Project Healthy CHOICES, had 2 objectives: (i) to compare outcomes for students versus nonstudents; and (ii) to test a self-administered mail-based version of the Project CHOICES intervention.

METHODS

A randomized controlled trial (RCT) compared 2 interventions for women of childbearing age (18 to 44) who were at risk of an AEP: (i) motivational feedback based on Project CHOICES and (ii) information only. Advertisements recruited 354 women (145 college students; 209 nonstudents) at risk of an AEP. Intervention and study materials were available in English and Spanish. Of the 354 women, 44% were minorities (25% identified as Hispanics).

RESULTS

At the 6-month follow-up, the interventions did not differ and there was no Intervention by Student Study interaction. However, over the entire 6-month follow-up, significantly more students (68%) than nonstudents (46%) were not at risk of an AEP (2.1 odds ratio; confidence interval = 1.47 to 2.95). For all groups, risk reduction occurred primarily through effective contraception.

CONCLUSIONS

There was no significant difference between the 2 interventions. However, over the entire 6-month follow-up interval, college students were significantly more likely than nonstudents to not be at risk of an AEP and to use effective contraception. While the student groups had significantly higher reduced risk of AEP outcomes, there was also substantial risk reduction for women in the information only condition. These results suggest that the most effective AEP prevention efforts would be to inform women at risk that they could become pregnant. Because about half of all pregnancies are unplanned, identifying women at risk and preventing the risk of AEPs should be a public health priority.

Two Brief Measures of Alcohol Use Produce Different Results: AUDIT-C and Quick Drinking Screen

BACKGROUND

Several psychometrically sound measures of alcohol use have been developed to assess drinking. The Alcohol Use Disorders Identification Test (AUDIT) and its shorter counterpart the AUDIT-C, which contains the first 3 AUDIT questions, were developed by the World Health Organization and have become the preferred brief measures for screening and evaluating problem severity. This study compared the first 3 questions on the AUDIT with another psychometrically sound brief measure of alcohol use, the Quick Drinking Screen (QDS).

METHODS

Data were obtained from a randomized controlled trial of a mail-based intervention promoting self-change with 472 alcohol abusers (n = 280, no prior alcohol treatment; n = 192, prior alcohol treatment). Participants' retrospective self-reports of alcohol consumption were collected using the QDS and the 3 AUDIT-C questions and compared. Although both measures contain similar questions (2 quantity-frequency and 1 binge drinking), they differ in 2 important ways: (i) temporal interval over which data are collected, and (ii) formatting of response options (i.e., a continuous number vs. categorical).

RESULTS

Intraclass correlations for drinking variables were moderate to moderately high. A repeated-measures MANOVA using treatment condition and gender as variables revealed significant differences in absolute values between the 2 drinking measures with the QDS showing greater consumption on almost all variables. Participants' numerical answers on the QDS were compared to their categorical answers to the similar alcohol use questions on the AUDIT-C. The comparison revealed that participants' answers on the AUDIT-C were associated with extreme variability compared to their QDS answers. This variability suggests the AUDIT-C would be unreliable as a quantitative measure of alcohol consumption.

CONCLUSIONS

The differences between the 3 alcohol use questions on the AUDIT-C and the same questions on the QDS may reflect the imprecision of the AUDIT-C's drinking response categories. Results suggest that the QDS can be used to identify risky drinking and to provide a more informative characterization of a drinker's alcohol consumption than that provided by the AUDIT-C.

Bridging the Gap Between Scientists and Practitioners: The Challenge Before Us - Republished Article

The need to develop effective and efficient strategies for the dissemination of evidence-based health care has been recognized by governments, researchers, and clinicians alike. However, recognition and implementation are separate issues. If scientists are to have a significant impact on clinical practice, they will have to learn a new way of "doing business." Lessons from the business community and from the field of diffusion of innovations research (dissemination research) have direct applicability to disseminating science-based clinical procedures. This paper presents two examples of the successful integration of science and clinical practice. The goal in each case was to address problems fundamental to dissemination research, specifically for addictions treatment. The first example demonstrates how scientists and practitioners successfully worked hand-in-hand to integrate science and practice, by creating a clinical protocol that subsequently served almost 300 clients. The second example describes the successful dissemination of a clinical research intervention into community settings. The key to effective dissemination was to make practitioners true partners in the research, development, and dissemination process. For the effective wedding of clinical science and practice on a wide scale, dissemination must be adopted as a value and become a major objective of health care organizations. Current health care emphasis on evidence-based practice suggests that alliances between practitioners and scientists will point the way to clinical standards of practice for the next millennium.

Evaluating alcohol use among Russian women at risk for an alcohol-exposed pregnancy: A comparison of three measures of alcohol use

The Quick Drinking Screen (QDS) and Timeline Followback (TLFB), measures of alcohol use, have yielded similar reports of drinking with English speakers. The present study, a secondary data analysis, compared three measures of alcohol use (i.e., QDS, TLFB, and AUDIT) among Russian-speaking women. This is the first study to compare all three measures. This study replicated the findings of studies with English speakers and demonstrated that brief screening measures (QDS, AUDIT) provide reliable summary measures of alcohol use when compared to a detailed drinking measure (TLFB). The use of brief screening measures is recommended for use with Russian women.

Craigslist versus print newspaper advertising for recruiting research participants for alcohol studies: Cost and participant characteristics

INTRODUCTION

Technology has transformed our lifestyles in dramatic and significant ways, including new and less expensive options for recruiting study participants. This study examines cost and participant differences between two recruitment sources, Craigslist (CL), and print newspapers (PNs). This paper also reviewed and compared studies involving clinical trials published since 2010 that recruited participants using CL alone or in combination with other methods.

METHOD

Secondary data analyses from a parent study involving a randomized controlled trial of a mail-based intervention to promote self-change with problem drinkers.

RESULTS

Significant differences were found between CL and PN participants on most demographic and pretreatment drinking variables. While all participants had AUDIT scores suggestive of an alcohol problem and reported drinking at high-risk levels, CL participants had less severe drinking problem histories, were considerably younger, and had a higher socioeconomic status than PN participants. The total advertising costs for the 65 CL ads ($275) were significantly less than the 69 PN ads ($33, 311). The recruiting cost per eligible participant was vastly less expensive using CL ($1.46) compared to print newspaper ads ($116.88).

CONCLUSIONS

Using CL is a viable recruitment method for soliciting participants, particularly those that are younger, for alcohol intervention studies. It is also less expensive than newspaper ads. When CL participants were recruited, they reported being slightly more confident to change their drinking than PN participants. Limitations of using CL are discussed, including that some initial ad responders gave inconsistent answers to similar questions and a few tried to enter the study more than once.

Using a single binge drinking question to identify Russian women at risk for an alcohol-exposed pregnancy

INTRODUCTION

Low rates of contraception and at-risk drinking place many Russian women at risk of an alcohol-exposed pregnancy (AEP). The only realistic way to determine when women are at risk of AEP is by self-reports. A U.S. study found that a single binge-drinking question (SBD) effectively identified nearly all women whose drinking placed them at risk of AEP.

METHODS

The present study replicated the U.S.

STUDY

Participants were 689 non-pregnant Russian women of childbearing age who were at AEP risk. Their answers to SBD, "During the previous three months, how often did you have four or more drinks on one occasion", were compared with their reports of binge drinking on a 90-day Timeline Followback (TLFB) calendar.

RESULTS

The SBD identified 99% of at-risk Russian women as binge drinkers, replicating U.S.

FINDINGS

Only 8% of the women were identified at-risk using a second AEP criterion of ≥8 drinks on average per week. Although Russian women did not report heavy weekly drinking and two-thirds did not meet AUDIT criteria for problem drinking, when they did drink, 40% of the time it was binge drinking.

CONCLUSIONS

Almost all Russian women who were at risk of an AEP were identified by a single binge-drinking question. Results from this study suggest that Russian health care practitioners can use SBD to successfully screen women for AEP risk. SBD identified 99% of Russian women who were at AEP risk. Consequently, it is recommended that SBD be incorporated into routine health care screenings at OB/GYN clinic visits.

Autobiographical narratives can be used with confidence to collect information about ex-smokers' reasons for quitting smoking

Although autobiographical narratives (ABNs) provide rich descriptions of how people change addictive behaviors, psychometric evaluations of such reports are rare. 27 ex-smokers who had quit for 1 to 5 years were interviewed twice about why they quit. Participants' ABN reasons for why they quit smoking were compared with their answers on the Reasons For Quitting (RFQ) scale and found to be similar. Ex-smokers' ABNs are reliably reported for number and types of reasons given for quitting. Reasons ex-smokers gave in their ABNs were similar to their RFQ subscale answers. ABNs, a qualitative measure of quitting smoking, captured more information about how people quit smoking than quantitative scales.

Alcohol and drug treatment outcome studies: new methodological review (2005-2010) and comparison with past reviews

OBJECTIVE

Several methodological reviews of alcohol treatment outcome studies and one review of drug studies have been published over the past 40 years. Although past reviews demonstrated methodological improvements in alcohol studies, they also found continued deficiencies. The current review allows for an updated evaluation of the methodological rigor of alcohol and drug studies and, by utilizing inclusion criteria similar to previous reviews, it allows for a comparative review over time. In addition, this is the first review that compares the methodology of alcohol and drug treatment outcome studies published during the same time period.

METHOD

The methodology for 25 alcohol and 11 drug treatment outcome studies published from 2005 through 2010 that met the review's inclusion criteria was evaluated. The majority of variables evaluated were used in prior reviews.

RESULTS

The current review found that more alcohol and drug treatment outcome studies are now using continuous substance use measures and assessing problem severity. Although there have been methodological improvements over time, the current reviews differed little from their most recent past counterpart. Despite this finding, some areas, particularly the continued low reporting of demographic data, needs strengthening.

CONCLUSIONS

Improvement in the methodological rigor of alcohol and drug treatment outcome studies has occurred over time. The current review found few differences between alcohol and drug study methodologies as well as few differences between the current review and the most recent past alcohol and drug reviews.

Self-change among Spanish speakers with alcohol and drug use disorders in Spain and the United States

OBJECTIVE

Few cross-cultural studies have investigated the self-change process with substance abusers. This study examined commonalities and differences related to the self-change process with Spanish speaking self-changers in Spain and the United States (U.S.) who reported recovering from an alcohol or drug problem on their own (i.e., without formal help or treatment) for ≥1 year.

METHOD

Advertisements were primarily used to recruit participants. There were 56 participants in the final sample (Spain, n=29; US; n=27). Participants provided demographic and substance use history information and completed the Drug Use History Questionnaire, Reasons for Change Scale, the Life Events Checklist, and a checklist for maintenance factors after recovery.

RESULTS

Significantly more self-changers from the U.S. met DSM IV-TR criteria for alcohol dependence, reported significantly more life events in the year prior to recovery and significantly more maintenance/support events in the year after their recovery than their counterparts in Spain. The majority of participants' recoveries involved abstinence. Some alcohol abusers, however, report successfully engaging in low-risk drinking with no consequences(50% Spain; 22% U.S.), and some drug abusers in Spain (23%) reported a few days per year of very little drug use.

CONCLUSIONS

The two groups of Spanish speakers represented very different cultures, and those from the U.S. came from several countries in the Southern hemisphere. The results of this study suggest that even though people speak the same language that does not mitigate against cultural differences. Additional studies of the process of self change with larger participant samples are needed to better inform the development and provision of interventions for Spanish speakers with alcohol and drug use disorders across different cultures and countries.

Reliability of the Timeline Followback for cocaine, cannabis, and cigarette use

The Timeline Followback (TLFB), a retrospective calendar-based measure of daily substance use, was initially developed to obtain self-reports of alcohol use. Since its inception it has undergone extensive evaluation across diverse populations and is considered the most psychometrically sound self-report measure of drinking. Although the TLFB has been extended to other behaviors, its psychometric evaluation with other addictive behaviors has not been as extensive as for alcohol use. The present study evaluated the test-retest reliability of the TLFB for cocaine, cannabis, and cigarette use for participants recruited from outpatient alcohol and drug treatment programs and the general community across intervals ranging from 30 to 360 days prior to the interview. The dependent measure for cigarette smokers and cannabis users was daily use of cigarettes and joints, respectively, and for cocaine users it was a "Yes" or "No" regarding cocaine use for each day. The TLFB was administered in different formats for different drug types. Different interviewers conducted the two interviews. The TLFB collected highly reliable information about participants' daily use of cocaine, cannabis, and cigarettes from 30, 90, to 360 days prior to the interview. Findings from this study not only suggest that shorter time intervals (e.g., 90 days) can be used with little loss of accuracy, but also add to the growing literature that the TLFB can be used with confidence to collect psychometrically sound information about substance use (i.e., cocaine, cannabis, cigarettes) other than alcohol in treatment- and nontreatment-seeking populations for intervals from ranging up to 12 months prior to the interview.

Psychometric properties of the Drug Use Disorders Identification Test (DUDIT) with substance abusers in outpatient and residential treatment

The psychometric properties of the Drug Use Disorders Identification Test (DUDIT), an 11-item self-report questionnaire developed to screen individuals for drug problems, are evaluated. The measure, developed in Sweden and evaluated there with individuals with severe drug problems, has not been evaluated with less severe substance abusers or with clinical populations in the United States. Participants included 35 drug abusers in an outpatient substance abuse treatment program, 79 drug abusers in a residential substance abuse treatment program, and 39 alcohol abusers from both treatment settings who did not report a drug abuse problem. The DUDIT was found to be a psychometrically sound drug abuse screening measure with high convergent validity (r=.85) when compared with the Drug Abuse Screening Test (DAST-10), and to have a Cronbach's alpha of .94. In addition, a single component accounted for 64.91% of total variance, and the DUDIT had sensitivity and specificity scores of .90 and .85, respectively, when using the optimal cut-off score of 8. Additionally, the DUDIT showed good discriminant validity as it significantly differentiated drug from alcohol abusers. These findings support the DUDIT as a reliable and valid drug abuse screening instrument that measures a unidimensional construct. Further research is warranted with additional clinical populations.

Using one question to identify women at risk for an alcohol-exposed pregnancy

CONTEXT

Consumption of 8 alcoholic drinks per week or 5 alcoholic drinks on one occasion by a pregnant woman can affect the developing fetus. However, it can be difficult to determine which patients are at risk.

OBJECTIVE

To evaluate how well the answer to a single question about binge drinking could help identify women at risk of an alcohol-exposed pregnancy (AEP).

METHODS

Using data from a study of methods to prevent AEPs, the authors compared the efficacy of self-reported answers to a screening question about binge drinking (5 or more standard drinks on one occasion) within the past 90 days with answers to a question about drinking quantity (weekly consumption of 8 or more standard drinks) within the past 90 days.

RESULTS

The participants were 354 women of childbearing age who met screening criteria for being at risk of an AEP. The binge question was answered positively by 346 women (97.7%) at risk, while only 209 women (59.0%) reported that they drank 8 or more drinks in a week.

CONCLUSION

A single question about binge drinking can effectively and quickly identify the majority of women at risk of an AEP.

A Dual-Focus Motivational Intervention to Reduce the Risk of Alcohol-Exposed Pregnancy

Project CHOICES developed an integrated behavioral intervention for prevention of prenatal alcohol exposure in women at high risk for alcohol-exposed pregnancies. Settings included primary care, university-hospital based obstetrical/gynecology practices, an urban jail, substance abuse treatment settings, and a media-recruited sample in three large cities. The intervention was based on motivational interviewing and targeted both adoption of effective contraception and reduction of alcohol use. Treatment included 4 manual-guided sessions delivered by mental health clinicians and 1 contraceptive counseling session delivered by a family planning clinician. This paper describes the rationale for treatment; the use of motivational interviewing and the transtheoretical model for a dual-focused approach to behavior change; the development of the Project CHOICES intervention; development of the study protocol and treatment manual; and selection, training, supervision, and monitoring of study counselors. Implications for future applications of the intervention are discussed.

A Dual-Focus Motivational Intervention to Reduce the Risk of Alcohol-Exposed Pregnancy

Project CHOICES developed an integrated behavioral intervention for prevention of prenatal alcohol exposure in women at high risk for alcohol-exposed pregnancies. Settings included primary care, university-hospital based obstetrical/gynecology practices, an urban jail, substance abuse treatment settings, and a media-recruited sample in three large cities. The intervention was based on motivational interviewing and targeted both adoption of effective contraception and reduction of alcohol use. Treatment included 4 manual-guided sessions delivered by mental health clinicians and 1 contraceptive counseling session delivered by a family planning clinician. This paper describes the rationale for treatment; the use of motivational interviewing and the transtheoretical model for a dual-focused approach to behavior change; the development of the Project CHOICES intervention; development of the study protocol and treatment manual; and selection, training, supervision, and monitoring of study counselors. Implications for future applications of the intervention are discussed.

Randomized controlled trial of a cognitive-behavioral motivational intervention in a group versus individual format for substance use disorders

Although group therapy is widely used for individuals with substance use disorders (SUDs), randomized clinical trials (RCTs) comparing the same treatment in a group versus individual format are rare. This paper presents the results of a RCT comparing guided self-change (GSC) treatment, a cognitive-behavioral motivational intervention, conducted in a group versus individual format with 212 alcohol abusers and 52 drug abusers who voluntarily sought outpatient treatment. Treatment outcomes demonstrated significant and large reductions in clients' alcohol and drug use during treatment and at the 12-month follow-up, with no significant differences between the group and individual therapy conditions. A therapist time ratio analysis found that it took 41.4% less therapist time to treat clients using the group versus the individual format. Participants' end-of-treatment group cohesion scores characterized the groups as having high engagement, low levels of interpersonal conflict, and low avoidance of group work, all desirable group characteristics. These findings suggest that the GSC treatment model was effectively integrated into a brief group treatment format. Health care cost containment compels further evaluations of the efficacy of group treatments for SUDs.

Keeping psychotherapy notes separate from the patient record

Doctoral level psychologists (N = 464) who were members of the American Psychological Association and who identified themselves as clinical practitioners were surveyed about their knowledge and utilization of the Health Insurance Portability and Accountability Act (HIPAA) Privacy Rule that allows practitioners to keep their psychotherapy notes separate from their patients' records if they involve electronic submissions. Although 79% of those surveyed said they were aware of the HIPAA privacy rule allowing for a separate set of notes, slightly less than half (46%) reported currently using such notes even though half (49%) felt that patients benefit most from the use of a separate set of psychotherapy notes. Surprisingly, 21% said they had never heard of the HIPAA provision allowing for a separate set of notes. Considering that when this provision was introduced it was heralded as a major benefit for mental health practitioners, its low utilization is surprising. Perhaps clinical practitioners would benefit from continuing education about the benefits of such notes.

A Quick Drinking Screen for identifying women at risk for an alcohol-exposed pregnancy

Two previous studies comparing the Quick Drinking Screen (QDS) with the Timeline Followback (TLFB) found that these two instruments yielded similar reports of alcohol use for clinical and nonclinical populations of problem drinkers. The current study evaluated the correspondence between these two drinking measures with women at risk of an Alcohol-Exposed Pregnancy (AEP). Participants were 355 women who voluntarily participated in a research study during 2005 through 2007 designed to prevent AEPs. All women were screened by phone for eligibility using the QDS and approximately 2 weeks later completed a 3-month TLFB by mail. Results of this study, analyzed in 2008, paralleled previous studies showing that the QDS and the TLFB, two very different drinking measures, collected similar aggregate drinking data for women who drink heavily and are at risk of an AEP. Correspondence between the two drinking measures met acceptable levels of reliability. The present study found that the QDS has demonstrated efficacy for screening women whose level of alcohol use puts them at risk for an AEP. Although the QDS does not yield detailed drinking information, it could be used when it is not possible or necessary to gather daily drinking data.

Comparison of the quick drinking screen and the alcohol timeline followback with outpatient alcohol abusers

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.

Comparing the BDI-II and the PHQ-9 with outpatient substance abusers

Because of the high co-occurrence of Axis-I mood disorders with primary substance use disorders (SUD), it is important to routinely assess substance abusers for evidence of a mood disorder. The primary goal of the present study was to examine the psychometric characteristics of two widely used self-report measures of depression (Beck Depression Inventory-II; Patient Health Questionnaire PRIME MD) with substance abusers (N=108) in an outpatient treatment setting. Using Cronbach's alpha, the reliabilities of the BDI-II and the PHQ-9 were 0.95 and 0.91, respectively. Principal component factor analyses of both measures were conducted to evaluate the relationship between a 3-factor solution (cognitive, affective, and somatic) for the BDI-II and a 1-factor solution for the PHQ-9 (depression). Both measures were correlated with severity levels of alcohol and drug use. Advantages and disadvantages of using both measures with substance abusers are discussed.

Differences among substance abusers in Spain who recovered with treatment or on their own

This exploratory study compared the differences among substance abusers in Spain who recovered with treatment or on their own. Advertisements were used to recruit 58 individuals (29 self-changers and 29 treatment-changers) who had had problems with alcohol or drugs, and who had been recovered for at least one year. The groups differed significantly in severity of dependence, psychiatric treatment prior to recovery, and coping strategies to maintain recovery. Consistent with previous studies, those who had recovered through treatment had a more serious substance use history than those who changed on their own. In addition, social support was associated with maintenance of change for both groups. These findings parallel those for English-speaking populations.

Self-change: A pathway to cannabis abuse resolution

Long-term daily cannabis abusers (N = 25) who without treatment stopped using cannabis for at least one year were interviewed about their past substance use, antecedents to change, and factors supportive of change. Respondents' cannabis problems decreased in the year prior to their recovery compared to their lifetime use. Respondents described their successful quit attempts through structured interviews and autobiographical narratives. The narratives were content analyzed for factors related to recovery. The reports indicated that marijuana cessation was motivated more by internal than external factors, and the most common precipitants of quit attempts were cognitive anti-cannabis factors. The major reason reported by respondents for stopping cannabis was a change in how they viewed their cannabis use, followed by negative personal effects. The most common reported maintenance factors were avoidance of situations in which cannabis was used, changes in lifestyle, and the development of non-cannabis-related interests. Cognitive and respiratory functioning were also assessed. Lastly, more than 75% of respondents reported not seeking treatment because they believed it was not needed or because they wanted to quit on their own. Directions for future research are offered.

Psychometric characteristics of a Spanish version of the DAST-10 and the RAGS

Although Hispanics/Latinos constitute the largest ethnic minority group in the United States, there are few culturally and linguistically valid Spanish language clinical assessment instruments. This shortage is even more critical in the addictions field. This article presents the psychometric characteristics of two drug abuse screening instruments; the Drug Abuse Screening Test (DAST-10), and the Reduce Annoyed Guilty Start (RAGS) test that were translated into Spanish. Participants included 60 drug abusers, 35 alcohol abusers, and 127 individuals with no alcohol and/or drug problem. Results indicated that the Spanish versions of the two drug abuse screening instruments were reliable and unidimensional and differentiated drug abusers from non-substance abusers and from alcohol abusers.

Smokers' narrative accounts of quit attempts: Aids and impediments to success

In this study, the authors used cigarette smokers' narratives describing their quit attempts to understand factors related to the change process. Maintained quitters (MQs, n = 59) and temporary quitters (TQs, n = 47) wrote autobiographical narratives describing their most serious (TQs) or last (MQs) quit attempt. Two types of content analysis were used to analyze the reports: (a) dichotomous ratings of the presence or absence of an event and (b) computerized content analysis of event or word frequency. The valence (anti- or pro-smoking cessation) of change factors was also examined. MQs wrote significantly more affective statements than did TQs. When valence was examined, MQs made significantly more pro-smoking cessation social support, cognitive, and affective statements than TQs did, and TQs made significantly more anti-smoking cessation social support and affective statements than MQs did.

Guided Self-Change Model of Treatment for Substance Use Disorders

Guided self-change (GSC) treatment, a brief, cognitive-behavioral, motivational intervention first developed for use with problem drinkers, has now been evaluated with drug abusers, adolescents and Spanish-speaking alcohol abusers. This article reviews the foundations for the development of GSC; describes the results from several studies using this model of treatment, including an extension of the principles to a community-level study; speculates on the effective cognitive elements of the approach; and presents suggestions for future research.

Assessing drinking outcomes in alcohol treatment efficacy studies: selecting a yardstick of success

BACKGROUND

Although the number of alcohol treatment efficacy trials has mushroomed, there is no consensus on how best to measure outcomes. To advance the goal of establishing cross-trial consistency in measuring outcomes in clinical efficacy studies, the National Institute on Alcohol Abuse and Alcoholism convened a panel of experts and charged them with exploring, debating, and, ultimately, selecting a "sentinel" or "optimal" outcome measure to be used in future alcohol treatment studies. The goal of this article, one in a series of several presented at the National Institute on Alcohol Abuse and Alcoholism conference, is to discuss (1) the rationale underlying selection of an optimal outcome measure, (2) the necessary characteristics of an optimal outcome measure, (3) the utility of selecting an optimal measure, and (4) which drinking assessment methods could be used to collect data to portray the optimal outcome measure.

METHODS

At a minimum, the criteria for an "optimal" measure include that it be psychometrically sound. In addition, it should have considerable currency in the field, thereby increasing its prospects for adoption. The measure should also be consistent with the concepts of greatest interest and relevance to the field (e.g., directly reflect the fundamental goal of alcohol treatment). In light of these highly desired features, percent of days heavy drinking was chosen at the conference as a practical and relevant measure of alcohol treatment outcome.

CONCLUSIONS

Percent of days heavy drinking should be the optimal measure of alcohol treatment outcome. Currently, daily drinking estimation methods are the most useful for gathering data that can reflect the optimal measure. In addition, data gathered by daily drinking estimation methods can be used to study a variety of other outcome variables of interest to clinical researchers.

Outcome research methodology of smoking cessation trials (1994-1998)

Although several reviews of smoking cessation trials have been published, none have specifically evaluated the adequacy of the studies' reporting practices in terms of describing the intervention and outcome variables used. This review evaluates the reporting procedures of 109 smoking cessation trials published in English language peer-reviewed publications from 1994 through 1998. MedLine and PsychLIT searches were used to identify potential studies. Each study was evaluated as to whether the following information was reported: (a) demographic characteristics, (b) pretreatment smoking variables, (c) study characteristics, (d) descriptions of the clinical trial, (e) follow-up procedures, and (f) posttreatment outcome measures. Although some areas of methodological strength were identified, inadequate reporting of pre- and posttreatment demographic and smoking variables was also evident. Based on this review, several areas in need of further research are identified and discussed. Lastly, consistent with other recent reviews of smoking cessation trials, this review concluded that the smoking field should consider delineating a uniform set of assessment and outcome measures and a minimum follow-up interval.

Comparison of a quick drinking screen with the timeline followback for individuals with alcohol problems

OBJECTIVE

Two major strategies have typically been used to assess recent drinking: (1) Daily Estimation (DE) measures such as the Timeline Followback (TLFB) and (2) Quantity-Frequency (QF) summary measures. Although QF measures provide a quick and easy measure of consumption, they have been criticized as not being able to capture sporadic and unpatterned drinking (e.g., days that reflect important social and/or health risks). The TLFB, a psychometrically sound drinking assessment method, is able to capture all drinking, including sporadic heavy days and unpatterned drinking. In some situations, however, recall of daily drinking may not be possible or practical (e.g., limited time; no resources). This article compares results obtained by using a QF measure and a DE measure to assess problem drinkers' pretreatment drinking.

METHOD

The current study, part of a large community mail intervention with 825 alcohol abusers, compared results from two drinking measures covering the same time interval that were administered on two different occasions approximately 2.5 weeks apart. Both measures, the Quick Drinking Screen (QDS; a QF summary measure that collected data by telephone) and the TLFB (a self-administered daily estimation measure), collected drinking data for the year prior to the interview.

RESULTS

Although the QDS and the TLFB are very different drinking measures, remarkably similar aggregate drinking data were obtained for five drinking variables.

CONCLUSIONS

When it is not necessary or possible to gather detailed drinking data, the QDS produces reliable brief summary measures of drinking, at least for not severely alcohol dependent individuals. Also, respondents do not appear to use a repetitive response pattern when completing the TLFB.

Promoting self-change with alcohol abusers: a community-level mail intervention based on natural recovery studies

BACKGROUND

By using a public health approach to the treatment of alcohol problems, this study analyzed the efficacy and cost analysis of two versions of a community-level mail intervention to promote self-change among alcohol abusers who had never sought help or treatment.

METHODS

A total of 825 participants who responded to media solicitations were randomly assigned to one of two interventions: (a) for bibliotherapy/drinking guidelines (n = 411), they were given two pamphlets with information about the effects of alcohol and guidelines for low-risk drinking and self-monitoring, and (b) for motivational enhancement/personalized feedback (n = 414), personalized advice/feedback was provided on the basis of the participants' assessment of their drinking and related behaviors.

RESULTS

Although both groups exhibited significant reductions in drinking from 1 year before to 1 year after intervention, there were no significant differences between the two interventions for any variable. This suggests that the materials, irrespective of whether they were personalized, facilitated the reduction of drinking. Cost analysis revealed that a brief mail intervention could reduce drinking at a very low cost per participant (US$46 to US$97).

CONCLUSIONS

A brief community-level mail intervention for problem drinkers who had never sought treatment resulted in sizable reductions in alcohol use over the year after the intervention compared with the year before. Furthermore, many of those with poorer outcomes engaged in a natural stepped-care process by seeking help. These results, coupled with the low cost to deliver the intervention, suggest that public health campaigns could have a substantial effect on reducing alcohol problems and associated costs as well as getting some individuals into treatment. Such an approach would represent a shift from the alcohol field's long-standing clinical focus to a broader public health perspective.

Alcohol and drug abusers' perceived reasons for self-change in Canada and Switzerland: computer-assisted content analysis

Although many people recover from substance-use associated problems on their own, little is known about this phenomenon. The paper had two objectives: to use a new research method, computer-assisted content analysis, to understand alcohol and drug abusers' perceived reasons for self-change and to undertake a comparative evaluation across substances and cultures to validate previous findings about subjective appraisal processes. Three studies of natural recoveries of alcohol and drug abusers in two countries conducted tape-recorded interviews with 216 respondents. The taped responses were coded based on a content analytic dictionary approach using a computerized content analysis program. All three studies found several processes mediating the decision to change substance use. The computer content analysis confirmed a cognitive appraisal process regardless of the cultural setting or substance. The findings suggest that several procedures might have benefit in clinical interventions.

The relationship between thought suppression and smoking cessation

Intrusive thoughts (e.g., anxiety, depression, substance use) are among the most salient symptoms of clinical problems. Therefore, methods of thought suppression have received considerable attention. However, some studies have found that attempts to suppress thoughts precipitate an increase in thoughts. In the case of substance abuse, such thoughts could serve as cues for further use. This study examined the association between thought suppression and quitting smoking in a sample of current and ex-smokers. Using the White Bear Suppression Inventory (WBSI), scores were obtained for participants' level of thought suppression. Based on the idea that a greater tendency to suppress thoughts would make quitting smoking more difficult, it was hypothesized that unsuccessful quitters would have higher WBSI scores than smokers who had successfully quit. It was found that mean scores on the WBSI were significantly higher (P<.05) for smokers than ex-smokers. These findings suggest that a tendency toward thought suppression may increase the likelihood that attempts to quit smoking will be unsuccessful.

Cross-cultural evaluation of two drinking assessment instruments: alcohol timeline followback and inventory of drinking situations

This article describes the psychometric characteristics of two major assessment instruments used in a World Health Organization (WHO) clinical trial: (a) Alcohol Timeline Followback (TLFB, which assesses daily drinking patterns), and (b) Inventory of Drinking Situations (IDS, which assesses antecedents to "heavy" drinking). Clients (N = 308) were outpatient alcohol abusers from four countries (Australia, Canada, Mexico, and Sweden). Generally, the Alcohol TLFB and IDS were shown to be reliable and valid with outpatient alcohol abusers in four countries, and in three languages. These results suggest that the Alcohol TLFB and the IDS can be used in clinical and research settings with Swedish-, Spanish-, and English-speaking alcohol abusers.

A comparison of a brief and long version of the Situational Confidence Questionnaire

Assessing confidence to resist drinking in high risk situations is an important part of behavioral treatments for alcohol problems. The present study assessed the reliability and validity of the original 100-item Situational Confidence Questionnaire (SCQ) and of an 8-item brief version (BSCQ). Using a visual analog scale, the BSCQ asked respondents to report their confidence to resist urges to drink heavily using the original eight SCQ subscales (e.g., pleasant times with others, social pressure). Data were collected from 120 adult problem drinkers who voluntarily entered an outpatient alcohol treatment program. The comparability of the BSCQ and the SCQ-100 was evaluated through intraclass correlations between the eight subscales and comparison of both instruments' underlying factor structures. Correlation coefficients for the subscales ranged from 0.56 to 0.80. Both instruments showed similar, but not identical factor structures. The present results indicate that the BSCQ provides comparable information to the SCQ-100. Limitations, as well as the clinical advantages, of using the BSCQ over longer versions are discussed.

Stepped care as a heuristic approach to the treatment of alcohol problems

A stepped care approach to treatment decisions for alcohol problems consists of the application of decision rules derived from practice in other areas of health care. The treatment used should be (a) individualized, (b) consistent with the research literature and supported by clinical judgment, and (c) least restrictive but still likely to be successful. Used in this way, stepped care emphasizes serving the needs of clients efficiently but without sacrificing quality of care. Issues concerning stepped care are discussed, and the application of a stepped care approach to alcohol treatment services is described.

Natural recovery from alcohol and drug problems: methodological review of the research with suggestions for future directions

AIMS

The methodology of studies that reported data on individuals who recovered from an alcohol or other drug problem (cigarette smokers were excluded) without formal help or treatment were reviewed.

DESIGN/MEASUREMENTS

Potential studies were identified (a) through computerized literature searches, (b) by reviewing references from key publications and (c) by correspondence with researchers in the field. Studies had to (a) be in English, (b) be published, in press, or presented before the end of 1997, (c) report original results or be part of an original survey and (d) separately report respondents whose recoveries were and were not attributable to treatment. No case studies were included. Eligible studies were evaluated with respect to meeting criteria for (a) natural recovery, (b) methodological rigor and (c) reporting demographic and substance abuse history variables.

FINDINGS

Until 1997 only 38 articles (40 different respondent samples) met the inclusion criteria for this review. This small number of studies is not surprising, as natural recovery from substance abuse is a relatively new area of study. Moreover, the majority of the 38 articles were published in the past 8 years. For most studies, descriptions of the respondent samples at pre- and post-recovery were seriously deficient. Alcohol was the most studied drug, with heroin a distant second. Low-risk drinking (78.6%) and limited drug use (46.2%) were commonly reported outcomes in natural recovery studies.

CONCLUSIONS

Based on this review, future natural recovery studies should: (a) report respondents' demographic characteristics at the time of their recovery; (b) describe respondents' pre-recovery problem severity; (c) explore in some depth what factors, events or processes are associated with the self-change process; (d) provide corroboration of respondents' self-reports; (e) examine factors related to the maintenance of recoveries; (f) conduct interviews with individuals who have naturally recovered from cocaine, marijuana and polydrug abuse; (g) include a second interview at a later time to examine stability of natural recoveries; and (h) require a minimum 5-year recovery time frame.

Problem drinkers: evaluation of a stepped-care approach

The present study evaluated a stepped-care model for the treatment of problem drinkers; those not severely dependent on alcohol. The initial treatment consisted of a motivationally based, four-session outpatient treatment. Based on previous research, treatment nonresponders were defined as having consumed more than 12 drinks per week between the assessment and third session. Six-month follow-up interviews were conducted on three groups of problem drinkers: (1) those who responded to the initial intervention (n = 67); (2) those who did not respond to the initial treatment (n = 36); and (3) those who did not respond to the initial treatment and received a supplemental intervention (n = 33). The last two groups were used to evaluate whether providing treatment nonresponders with an additional "step" would improve treatment outcomes. The primary dependent measures were posttreatment percent days abstinent and posttreatment drinks per drinking day. Results suggested that (1) within treatment drinking can help identify treatment nonresponse in stepped-care models; (2) the supplemental intervention did not influence posttreatment drinking; (3) treatment responders and nonresponders sought additional help at the same rate. The present study is the first study on stepped-care for alcohol treatment and provides a methodology for evaluating stepped interventions. Recommendations for future research in this area include more attention to assessing the needs of treatment nonresponders and help seeking behavior of both responders and nonresponders after an initial intervention.

Does enhanced social support improve outcomes for problem drinkers in guided self-change treatment?

Although social support has been repeatedly identified as a strong correlate of recovery from alcohol problems, enhancing social support has seldom been a focus of treatment research. Married problem drinkers who were willing to have their spouses involved in their treatment were randomly assigned among two brief outpatient treatment conditions: directed social support (DS, n = 28) and natural social support (NS, n = 28). In both conditions the treatment in which the problem drinkers participated was an identical program of guided self-change, a cognitive-behavioral motivational intervention involving an assessment and four individual treatment sessions. Problem drinkers' spouses each attended two individual counseling sessions where they were informed about the counseling procedures. The conditions differed in that spouses in the DS group were encouraged to play an active role in helping their partner by being supportive and particularly by reacting to relapse episodes in a manner consistent with a relapse prevention model. One year follow-up found that participants in both groups improved significantly from pretreatment to the end of treatment, and that the gains were maintained over follow-up. The two groups did not differ significantly from one another at any point in time. Possible explanations for the results include that (a) the baseline level of social support in this population may have created a ceiling effect, and (b) the prognosis for this population may be so positive that it is difficult to demonstrate significant enhancement of outcomes.

Utility of liver function tests for screening "alcohol abusers" who are not severely dependent on alcohol

This study evaluated the utility of using liver function tests to identify low dependence outpatient "alcohol abusers" (N = 253) and for evaluating changes in their drinking over the course of treatment. Despite drinking at levels considered to pose a health risk (i.e., drinking on 72% of all days in the year prior to treatment and averaging 6.3 drinks per drinking day), nearly two-thirds had normal liver function tests at treatment entry. It is concluded that for problem drinkers the cost of using liver function tests outweighs the benefits.