Cannabis use frequency and pain interference among people with HIV.

Cannabis is often used by people with HIV (PWH) for pain, yet study results are inconsistent regarding whether and how it affects pain. This study examines whether greater cannabis use frequency is associated with lower pain interference and whether cannabis use modifies the association of pain severity and pain interference among 134 PWH with substance dependence or a lifetime history of injection drug use. Multi-variable linear regression models examined the association between past 30-day cannabis use frequency and pain interference. Additional models evaluated whether cannabis use modified the association between pain severity and pain interference. Cannabis use frequency was not significantly associated with pain interference. However, in a model with interaction between cannabis use frequency and pain severity, greater cannabis use frequency attenuated the strength of the association between pain severity and pain interference (p = 0.049). The adjusted mean difference (AMD) in pain interference was +1.13, + 0.81, and +0.05 points for each 1-point increase in pain severity for those with no cannabis use, 15 days of use, and daily use, respectively. These findings suggest that attenuating the impact of pain severity on pain-related functional impairment is a potential mechanism for a beneficial role of cannabis for PWH.

Medication for addiction treatment and acute care utilization in HIV-positive adults with substance use disorders.

Medication for addiction treatment (MAT) could reduce acute care utilization in HIV-positive individuals with substance use disorders. The study objective was to determine if HIV-positive people with substance use disorders treated with MAT report less acute care utilization than those not receiving MAT. We assessed the association between MAT and acute care utilization among HIV-positive individuals with alcohol or opioid use disorder. Acute care utilization 6 months later was defined as any past 3-month self-reported (1) emergency department (ED) visit and (2) hospitalization. Of 153 participants, 88% had alcohol use disorder, 41% had opioid use disorder, and 48 (31%) were treated with MAT. Fifty-five (36%) participants had an ED visit and 38 (25%) participants had a hospitalization. MAT was not associated with an ED visit (AOR 1.12, 95% CI 0.46-2.75) or hospitalization (AOR 1.09, 95% CI 0.39-3.04). MAT was not associated with acute care utilization. These results highlight the need to increase MAT prescribing in HIV-positive individuals with substance use disorders, and to address the many factors that influence acute care utilization.

Readiness-to-change as a moderator of a web-based brief intervention for marijuana among students identified by health center screening.

INTRODUCTION: Electronic screening and brief intervention has been identified as a low cost strategy to address marijuana use among students, however there is little known about who may be most responsive to this intervention approach. This study examined whether readiness-to-change moderated the influence of a web-based intervention on frequency of use at 3-month outcomes. METHODS: One-hundred twenty-three students who smoked marijuana at least monthly were identified by screening in a student health center. Baseline and 3-month outcome assessments were conducted on-line. Participants were randomly assigned to either eCHECKUP TO GO-marijuana or a control condition after completing marijuana measures and the Readiness-to-Change Questionnaire (RTCQ). Negative binomial regression analyses were conducted to examine whether the effect of the intervention on marijuana use at 3-month outcomes was moderated by the Action and Problem Recognition dimensions of the RTCQ, adjusting for baseline use. RESULTS: Analyses showed a significant Intervention × Action interaction. Probing of interaction effects showed that among those with high scores on the Action scale participants in the intervention group reported significantly fewer days of use than those in the control condition at follow-up (IRR=0.53, 95%CI: 0.94, 2.08). The Problem Recognition dimension did not moderate the influence of the intervention on outcomes. CONCLUSION: These results suggest that this eSBI may bolster change efforts among students who have begun taking steps toward changing their marijuana use.

Factors associated with discontinuation of antiretroviral therapy in HIV-infected patients with alcohol problems.

Although mortality rates among HIV-infected populations have declined with the advent of combination antiretroviral therapy (ART), patients with substance use disorders have benefited less from these therapies. While adherence to ART has been well studied, less is known about factors associated with discontinuation of ART. The aim of this study is to investigate predictors of discontinuation of ART in HIV-infected patients with alcohol problems, focusing on their substance use and depressive symptoms. The study cohort (n=266) was prospectively assessed with biannual standardised interviews between 2001 and 2005. Four predictor variables (cocaine, heroin, heavy alcohol use and substantial depressive symptoms) were assessed six months prior to the outcome (ART discontinuation). Longitudinal logistic regression models examined the association between predictor variables and ART discontinuation adjusting for age, gender, race/ethnicity, homelessness, CD4, HIV RNA and HIV Symptom Index. Subjects were 77% male; 43% black; 22% homeless; 45% used cocaine; 20% used heroin; 29% had heavy alcohol use; and 40% had substantial depressive symptoms. Discontinuation occurred in 135 (17%) of the observations (n=743). In bivariate analyses, cocaine use, heroin use and depressive symptoms were significantly associated with ART discontinuation but heavy alcohol use was not. In the multivariable model, substantial depressive symptoms (adjusted odds ratio (AOR)=1.66; 95% confidence interval (CI): 1.04, 2.65) but not cocaine (AOR=1.28; 95%CI: 0.76, 2.16) or heroin use (AOR=1.27 95%CI: 0.66, 2.44), remained significantly associated with ART discontinuation. Among HIV-infected adults with alcohol problems, depressive symptoms, but not substance use, predicted subsequent ART discontinuation. Recognition and treatment of depressive symptoms in this population may result in better maintenance of ART and its associated clinical benefits.

Association of alcohol consumption with HIV sex- and drug-risk behaviors among drug users.

The relationship between alcohol use and HIV transmission is well recognized but not fully understood. In particular, the role of alcohol abuse as a mediator of HIV risk behavior among drug users is not well documented. We hypothesized that alcohol use in drug users will result in greater HIV risk-taking behavior. Participants were 354 drug users, of whom 105 were recent injection drug users. Multiple regression models were used to characterize whether measures of sexual and injection drug use HIV risk behavior were related to alcohol consumption, controlling for other potentially associated factors. We found that sexual HIV risk-taking behavior is associated with increased alcohol consumption among women (p = 0.02), with women having more risky sexual behavior than males. However, contrary to our hypothesis, there was no significant association of alcohol consumption with risky injection drug behavior. Addressing alcohol problems among drug users, particularly women, may be an important opportunity to reduce HIV sexual risk behavior among this high-risk population.

Validation of the screening strategy in the NIAAA "Physicians' Guide to Helping Patients with Alcohol Problems".

OBJECTIVE: This study was undertaken to determine the diagnostic test characteristics of the alcohol screening strategy recommended in the National Institute on Alcoholism and Alcohol Abuse (NIAAA) "Physicians' Guide to Helping Patients with Alcohol Problems." METHOD: A research interview was performed on patients who presented to one urban emergency department (N = 395; 61% women). It asked three alcohol consumption questions, the CAGE questionnaire, and about past alcohol problems. The NIAAA-recommended screen was considered positive for alcohol consumption in excess of 14 drinks per week or 4 drinks per occasion for men, or 7 drinks per week or 3 drinks per occasion for women, or a CAGE score of 1 or greater. A sample of patients (n = 250) received the Composite International Diagnostic Interview substance abuse module, a gold standard interview, to determine lifetime or prior 12-month alcohol abuse or dependence; results were adjusted for verification bias. RESULTS: The prevalence of lifetime:alcohol abuse or dependence was 13%, for which the NIAAA strategy was 81% sensitive and 80% specific. The prevalence of alcohol abuse or dependence in the prior 12 months was 10%, for which the strategy was 83% sensitive and 84% specific. Its positive likelihood ratio exceeded that of the CAGE, augmented CAGE or consumption questions alone, and its negative likelihood ratio was the lowest. CONCLUSIONS: The screening strategy combining alcohol consumption and CAGE questions recommended in the NIAAA "Physicians' Guide" is valid, and has superior test characteristics compared to the CAGE alone, in this predominantly black (86%) emergency department population. Its brevity and simple interpretation recommend wider dissemination of the NIAAA "Physicians' Guide," although future research should examine its test characteristics in other clinical settings and with other populations.

Improving alcoholism treatment across the spectrum of services.

This article represents the proceedings of a symposium at the 2000 RSA Meeting in Denver, Colorado. The chair was Michael E. Hilton. The presentations were (1) The effects of brief advice and motivational enhancement on alcohol use and related variables in primary care, by Stephen A. Maisto, Joseph Conigliaro, Melissa McNiel, Kevin Kraemer, Mary E. Kelley, and Rosemarie Conigliaro; (2) Enhanced linkage of alcohol dependent persons to primary medical care: A randomized controlled trial of a multidisciplinary health evaluation in a detoxification unit, by Jeffrey H. Samet, Mary Jo Larson, Jacqueline Savetsky, Michael Winter, Lisa M. Sullivan, and Richard Saitz; (3) Cost-effectiveness of day hospital versus traditional alcohol and drug outpatient treatment in a health maintenance organization: Randomized and self-selected samples, by Constance Weisner, Jennifer Mertens, Sujaya Parthasarathy, Charles Moore, Enid Hunkeler, Teh-Wei Hu, and Joe Selby; and (4) Case monitoring for alcoholics: One year clinical and health cost effects, by Robert L. Stout, William Zywiak, Amy Rubin, William Zwick, Mary Jo Larson, and Don Shepard.

Screening and intervention for illicit drug abuse: a national survey of primary care physicians and psychiatrists.

BACKGROUND: Illicit drug abuse causes much morbidity and mortality, yet little is known about physicians' screening and intervention practices regarding illicit drug abuse. METHODS: We mailed a survey to a national sample of 2000 practicing general internists, family physicians, obstetricians and gynecologists, and psychiatrists to assess their screening and intervention practices for illicit drug abuse. RESULTS: Of 1082 respondents (adjusted response rate, 57%), 68% reported that they regularly ask new outpatients about drug use. For diagnosed illicit drug abuse, 55% reported that they routinely offer formal treatment referral, but 15% reported that they do not intervene. In multivariate logistic regression models, more optimal screening and intervention practices were associated with psychiatry specialty, confidence in obtaining the history of drug use, optimism about the effectiveness of therapy, less concern that patients will object, and fewer perceived time constraints. CONCLUSIONS: Most physicians reported that they ask patients about illicit drug use, but a substantial minority inadequately intervene in diagnosed drug abuse. Initiatives to promote physician involvement in illicit drug abuse should include strategies to increase physicians' confidence in managing drug problems, engender optimism about the benefits of treatment, dispel concerns about patients' sensitivity regarding substance use, and address perceived time limitations.

Benefits of linking primary medical care and substance abuse services: patient, provider, and societal perspectives.

Individuals with alcohol and drug use problems may receive health care from medical, mental health, and substance abuse providers, or a combination of all three. Systems of care are often distinct and separate, and substantial opportunities for benefit to patient, provider, and payer are missed. In this article, we outline (1) the possible benefits of linking primary care, mental health, and substance abuse services from the perspective of the major stakeholders-medical and mental health providers, addiction clinicians, patients, and society-and (2) reasons for suboptimal linkage and opportunities for improving linkage within the current health care system. We also review published models of linked medical and substance abuse services. Given the potential benefits of creating tangible systems in which primary care, mental health, and substance abuse services are meaningfully linked, efforts to implement, examine, and measure the real impact should be a high priority.

Screening and intervention for alcohol problems. A national survey of primary care physicians and psychiatrists.

OBJECTIVE: To describe adult primary care physicians' and psychiatrists' approach to alcohol screening and treatment, and to identify correlates of more optimal practices. DESIGN: Cross-sectional mailed survey. PARTICIPANTS: A national systematic sample of 2,000 physicians practicing general internal medicine, family medicine, obstetrics-gynecology, and psychiatry. MEASUREMENTS: Self-reported frequency of screening new outpatients, and treatment recommendations in patients with diagnosed alcohol problems, on 5-point Likert-type scales. MAIN RESULTS: Of the 853 respondent physicians (adjusted response rate, 57%), 88% usually or always ask new outpatients about alcohol use. When evaluating patients who drink, 47% regularly inquire about maximum amounts on an occasion, and 13% use formal alcohol screening tools. Only 82% routinely offer intervention to diagnosed problem drinkers. Psychiatrists had the most optimal practices; more consistent screening and intervention was also associated with greater confidence in alcohol history taking, familiarity with expert guidelines, and less concern that patients will object. CONCLUSIONS: Most primary care physicians and psychiatrists ask patients about alcohol use, but fewer use recommended screening protocols or offer formal treatment. A substantial minority of physicians miss the opportunity to intervene in alcohol problems. Efforts to improve physicians' screening and intervention for alcohol problems should address their confidence in their skills, familiarity with expert recommendations, and beliefs that patients object to their involvement

The impact of leaving against medical advice on hospital resource utilization.

OBJECTIVE: To assess the effect of hospital discharge against medical advice (AMA) on the interpretation of charges and length of stay attributable to alcoholism. DESIGN: Retrospective cohort. Three analytic strategies assessed the effect of having an alcohol-related diagnosis (ARD) on risk-adjusted utilization in multivariate regressions. Strategy 1 did not adjust for leaving AMA, strategy 2 adjusted for leaving AMA, and strategy 3 restricted the sample by excluding AMA discharges. SETTING: Acute care hospitals. PATIENTS: We studied 23,198 pneumonia hospitalizations in a statewide administrative database. MEASUREMENTS AND MAIN RESULTS: Among these admissions, 3.6% had an ARD, and 1.2% left AMA. In strategy 1 an ARD accounted for a $1,293 increase in risk-adjusted charges for a hospitalization compared with cases without an ARD ( p =.012). ARD-attributable increases of $1,659 ( p =.002) and $1,664 ( p =. 002) in strategies 2 and 3 respectively, represent significant 28% and 29% increases compared with strategy 1. Similarly, using strategy 1 an ARD accounted for a 0.6-day increase in risk-adjusted length of stay over cases without an ARD ( p =.188). An increase of 1 day was seen using both strategies 2 and 3 ( p =.044 and p =.027, respectively), representing significant 67% increases attributable to ARDs compared with strategy 1. CONCLUSIONS: Discharge AMA affects the interpretation of the relation between alcoholism and utilization. The ARD-attributable utilization was greater when analyses adjusted for or excluded AMA cases. Not accounting for leaving AMA resulted in an underestimation of the impact of alcoholism on resource utilization.

Successful teaching in evidence-based medicine.

OBJECTIVES: Several published articles have described the importance of exposing medical trainees to the 'new paradigm' of evidence-based medicine (EBM). Recognizing this, we sought to develop and objectively evaluate a mini-course in EBM for third-year medical students. DESIGN: We developed a mini-course consisting of four sessions in which students learn to derive sequentially focused questions, search MEDLINE, review articles critically and apply information from the literature to specific clinical questions. To evaluate the teaching intervention, we performed a controlled educational study. Students at the intervention site (n=34) attended the EBM mini-course, while students at the control site (n=26) received more 'traditional' didactic teaching on various clinical topics. Intervention and control students were surveyed immediately before and after the mini-course to assess changes in reading and literature searching skills, as well as a tendency to use the literature to answer clinical questions. SETTING: Boston University School of Medicine. SUBJECTS: Third-year medical students. RESULTS: The intervention was associated with significant changes in students' self-assessed skills and attitudes. MEDLINE and critical appraisal skills increased significantly in the intervention group relative to the control group (significance of between group differences: P=0.002 for MEDLINE and P=0.0002 for critical appraisal), as did students' tendency to use MEDLINE and original research articles to solve clinical problems (significance of between group differences: P=0.002 and P=0.0008, respectively). CONCLUSIONS: We conclude that this brief teaching intervention in EBM has had a positive impact on student skills and attitudes at our medical school. We believe that the key elements of this intervention are (1) active student involvement, (2), clinical relevance of exercises and (3) integrated teaching targeting each of the component skills of EBM.

The value of acupuncture detoxification programs in a substance abuse treatment system.

Our purpose is to compare baseline characteristics and detoxification readmission rates of clients treated at outpatient acupuncture programs and at short-term residential programs, two options available to persons seeking substance abuse detoxification. This was a retrospective cohort study using data on clients discharged from publicly funded detoxification programs in Boston between January 1993 and September 1994. Multivariate models were used to examine the effect on 6-month detoxification readmission rates of treatment at residential detoxification programs (used by 6,907 clients) versus at outpatient acupuncture programs (used by 1,104 clients) after adjusting for baseline differences. Acupuncture clients were less likely to be readmitted for detoxification within 6 months (odds ratio [OR] 0.71, 95% confidence interval [CI] 0.53-0.95). Similar results were found when the analysis was performed on a subsample of clients that were relatively similar in terms of baseline characteristics (OR 0.61, 95% CI 0.39-0.94). We determined that acupuncture detoxification programs are a useful component of a substance abuse treatment system.

Evidence-based medicine and the real world: understanding the controversy.

Controversy has surrounded the 'paradigm' of evidence-based medicine since its introduction in 1992 as a new approach to the teaching and practice of medicine. Here, we address two questions: (1) is evidence-based medicine a good thing?; and (2) why has so much controversy arisen? In addressing these questions, we propose that the discussion surrounding evidence-based medicine should no longer be about whether the application of evidence in clinical practice is a good thing, because it obviously is. Instead, the debate ought to focus on the more difficult question of how to enhance its acceptability among busy clinicians practising in the 'real world'. For the future, we optimistically anticipate an enhanced adoption of evidence-based medicine, as clinicians will become increasingly capable of efficiently accessing existing and forthcoming evidence resources.

Managing alcohol withdrawal in the elderly.

The alcohol withdrawal syndrome is common in elderly individuals who are alcohol dependent and who decrease or stop their alcohol intake. While there have been few clinical studies to directly support or refute the hypothesis that withdrawal symptom severity, delirium and seizures increase with advancing age, several observational studies suggest that adverse functional and cognitive complications during alcohol withdrawal do occur more frequently in elderly patients. Most elderly patients with alcohol withdrawal symptoms should be considered for admission to an inpatient setting for supportive care and management. However, elderly patients with adequate social support and without significant withdrawal symptoms at presentation, comorbid illness or past history of complicated withdrawal may be suitable for outpatient management. Although over 100 drugs have been described for alcohol withdrawal treatment, there have been no studies assessing the efficacy of these drugs specifically in elderly patients. Studies in younger patients support benzodiazepines as the most efficacious therapy for reducing withdrawal symptoms and the incidence of delirium and seizure. While short-acting benzodiazepines, such as oxazepam and lorazepam, may be appropriate for elderly patients given the risk for excessive sedation from long-acting benzodiazepines, they may be less effective in preventing seizures and more prone to produce discontinuation symptoms if not tapered properly. To ensure appropriate benzodiazepine treatment, dose and frequency should be individualised with frequent monitoring, and based on validated alcohol withdrawal severity measures. Selected patients who have a history of severe or complicated withdrawal symptoms may benefit from a fixed schedule of benzodiazepine provided that medication is held for sedation. beta-Blockers, clonidine, carbamazepine and haloperidol may be used as adjunctive agents to treat symptoms not controlled by benzodiazepines. Lastly, the age of the patient should not deter clinicians from helping the patient achieve successful alcohol treatment and rehabilitation.

Alcohol abuse and dependence in Latinos living in the United States: validation of the CAGE (4M) questions.

BACKGROUND: Brief alcoholism screening questionnaires have not been adequately studied in the rapidly growing Latino population living in the United States. OBJECTIVE: To assess (1) the prevalence of alcoholism and (2) the performance of 2 alcohol screening instruments in Latinos. SUBJECTS AND METHODS: We performed a cross-sectional interview study in an urban teaching hospital-based primary care practice. Consecutive self-identified Latino subjects provided informed consent. All subjects were interviewed in English or Spanish using 2 alcoholism screening tools, the CAGE (or the Spanish version, the 4M), and the Alcohol Use Disorders Identification Test, and a criterion standard for the diagnosis of alcohol abuse and dependence, the Composite International Diagnostic Interview. RESULTS: Of 210 subjects interviewed, 36% had a lifetime diagnosis of alcohol abuse or dependence by the criterion standard. Thirty-one percent were currently drinking hazardous amounts of alcohol. A CAGE (4M) score of 1 or more was 92% sensitive and 74% specific, and a score of 2 or more was 80% sensitive and 93% specific for a lifetime diagnosis of alcohol abuse or dependency. CAGE (4M) scores of 0, 2, 3, and 4 were associated with likelihood ratios (0.1, 4.8, 18.5, and 36.8, respectively) that resulted in substantial changes from pretest (36%) to posttest probability (to 6%, 73%, 91%, and 95%, respectively) of a diagnosis of alcohol abuse or dependency. At the standard cutoff point, the Alcohol Use Disorders Identification Test detected only 51% of subjects with alcohol disorders. CONCLUSIONS: In Latinos in primary care settings, alcohol abuse and dependence are common and the CAGE (4M) is a brief, valid, screening tool for detecting alcohol use disorders.