Biomedical subjects

Bradley J Anderson

Publications and source records attributed to Bradley J Anderson.

At least 19 recordsLinked to original sources

PubMed2007

A telephone-based intervention for depression in HIV patients: negative results from a randomized clinical trial.

To determine if a telephone support behavioral intervention improves depressive symptoms among HIV positive outpatients, we enrolled 177 persons with Beck Depression Inventory (BDI) scores scores of >/=10. Participants were randomized to receive up to 12 scheduled psycho-educational calls over 6 months or to an assessment-only control condition. Co-enrolled informal caregivers of HIV patients received the same telephone intervention in parallel. Among the 160 (90.4%) participants who were re-interviewed at 6 months, 56% were male, and 41% were Caucasian, with a mean baseline BDI score of 22.7. Overall, participants' mean BDI scores improved 5.3 points from baseline, but intervention group differences on depression outcomes including 50% or greater reduction in BDI scores and depression remission were not statistically significant. In the full cohort, men were significantly more likely to improve than women. We conclude that a psycho-educational telephone support intervention did not reduce depressive symptoms for HIV patients more than an assessment-only control condition.

Adult↗

PubMed2006

HIV and HCV testing for young drug users in Rhode Island.

Young injection drug users (IDU) are at risk for both human immunonodeficiency virus (HIV) and Hepatitis C infections (HCV). Rates of HIV testing have been widely documented, but limited information exists regarding HCV screening rates. Among a community sample of 86 IDUs, aged 18-25 years in Rhode Island, 87.2% reported ever testing for HIV versus 51.2% for HCV (p < .001). Young injectors were under-screened for HCV compared with the far less prevalent HIV infection.

Adolescent↗

PubMed2006

Overdoses among friends: drug users are willing to administer naloxone to others.

The distribution of naloxone to heroin users is a suggested intervention to reduce overdose and death rates. However, the level of willingness of drug users to administer this medication to others is unclear. Drug users recruited from the community between January 2002 and January 2004 completed a structured interview that assessed topics including drug use, overdose history, and attitudes toward using overdose remedies to assist others. Of the 329 drug users, 82% had used heroin and 64.3% reported that they had injected drugs. Nearly two thirds (64.6%) said that they had witnessed a drug overdose and more than one third (34.6%) had experienced an accidental drug overdose. Most participants (88.5%) said that they would be willing to administer a medication to another drug user in the event of an overdose. Participants who had used heroin (p = .024), had injected drugs (p = .022), had witnessed a drug overdose (p = .001), or had a history of one or more accidental drug overdoses (p = .009) were significantly more willing to treat a companion who had overdosed. Drug users were willing to use naloxone in the event of a friend's overdose. Specific drug use and overdose histories were associated with the greatest willingness to administer naloxone.

Adolescent↗

PubMed2006

Correlates of condom use and reasons for condom non-use among drug users.

Two hundred and seventy-seven drug using adults were interviewed regarding details of their most recent sexual encounter. Demographic, attitudinal, and context variables were associated with condom use and non-use. Greater perceived risk of STDs/HIV and positive attitudes toward condoms' effect on sexual pleasure were associated with greater likelihood of reporting condom use. Common reasons for not using condoms included lower perceived risk of contracting HIV/STDs, negative attitudes toward condoms' effect on pleasure, and lack of condom availability. Tailoring messages to modifiable perceptions of risk and condom attitudes may be useful in reducing sexual risk among drug-using individuals.

Adolescent↗

PubMed2006

A smoking cessation intervention for the methadone-maintained.

AIM: To test, in combination with the nicotine patch, the incremental efficacy of a maximal, tailored behavioral treatment over a minimal treatment for smoking cessation. DESIGN: Randomized clinical trial with 6-month follow-up. SETTING: Five methadone maintenance treatment centers in Rhode Island. PARTICIPANTS: Three hundred and eighty-three methadone-maintained smokers. INTERVENTION: Participants were assigned randomly to nicotine patch (8-12 weeks) plus either (1) a baseline tailored brief motivational intervention, a quit date behavioral skills counseling session and a relapse prevention follow-up session (Max) or (2) brief advice using the National Cancer Institute's 4 As model (Min). An intent-to-treat analysis with those lost to follow-up assumed to smoke was used. MEASUREMENTS: Carbon monoxide (CO)-confirmed 7-day point smoking cessation prevalence at 3 and 6 months, and self-reported numbers of cigarettes smoked per day. FINDINGS: Participants had a mean age of 40 years, were 53% male, 78% Caucasian, smoked 26.7 (+/- 12.2) cigarettes/day and had a mean methadone dose of 95.5 mg. At 3 months, 317 (83%) were re-interviewed; at 6 months, 312 (82%) were re-interviewed. The intent-to-treat, 7-day point prevalence estimate of cessation was 5.2% in the Max group and 4.7% in the Min group (P=0.81) at 6 months. In logistic models with treatment condition, age, gender, race, Fagerström Test for Nicotine Dependence and cigarettes per day as covariates, males were more likely to be abstinent at 3 months (OR 4.67; P=0.003) and 6 months (OR 4.01; P=0.015). CONCLUSION: A tailored behavioral intervention did not increase quit rates over patch and minimal treatment. Smoking cessation rates in methadone-maintained smokers are low, with men having greater success.

Adult↗

PubMed2006

Nicotine replacement therapy: patterns of use after a quit attempt among methadone-maintained smokers.

AIM: To determine the association between daily smoking and use of nicotine replacement therapy (NRT), and to determine predictors of greater NRT use among methadone-maintained smokers. INTERVENTION: Assignment to free nicotine patch (8 to 12 weeks) plus either (1) a baseline-tailored brief motivational intervention, a quit date behavioral skills counseling session, and a relapse prevention follow-up session (max), or (2) brief advice using NCI's 4 A's model (min). SETTING: Five methadone maintenance treatment centers. PARTICIPANTS: Of the 383 methadone-maintained smokers enrolled, 309 (80.6%) set a specific quit date (received NRT) and were located for assessments. Participants were 51.8% male, 78.6% Caucasian, and smoked 26.6 (SD=12.2) cigarettes/day. OUTCOME: Use of NRT and smoking behaviors during the 180-day follow-up period assessed by the Timeline follow-back method. FINDINGS: On the day following their quit day, 86.4% of participants used NRT. The percentage of participants using NRT was 52.3%, 27.1%, and 10.4% on day 30, day 60, and day 90, respectively. Participants used NRT on 44.1% of the days through the 90 days of the treatment protocol. The estimated odds of smoking abstinence was 7.1 (P<.001) times higher on days when NRT was used than on days when NRT was not used, and cigarettes/day was also significantly lower on NRT days (14.93 vs 4.65; P<.001). CONCLUSION: Nicotine replacement therapy use was inconsistent following an initial quit attempt among methadone-maintained smokers. On days when NRT was used, individuals were likely to smoke at reduced levels or not at all.

Administration, Topical↗

PubMed2005

Adversity among drug users: relationship to impulsivity.

Illicit substance users experience adverse life events, but few studies have examined the role of impulsivity in these events. The present investigation sought to establish a link between negative life experiences and a trait measure of impulsivity and demonstrate that this association remains even accounting for potential confounds. Participants were 330 heroin and cocaine users recruited from the community for a health service research study. Participants completed a structured interview that assessed topics including drug and alcohol use, impulsivity, and negative life events. This group of drug users reported high rates of adverse life events in the 6 months prior to the assessment. No specific substance abuse/dependence diagnosis or combination of diagnoses was associated with adversity. Number of substance-related diagnoses was associated with adverse life events, but not when adjusting for impulsivity. Experience of these events was significantly associated with impulsivity (p<.001), above and beyond the shared relation with demographic variables, substance abuse and dependence, and number of substance-related diagnoses. These findings document the high frequencies of recent adverse life events among illicit drug users and indicate that trait impulsivity is associated with increased risk of these life events.

Adult↗

PubMed2005

Correlates of motivation to quit smoking in methadone-maintained smokers enrolled in a smoking cessation trial.

Cigarette smoking is a clear problem among methadone-maintained persons, yet little is known about factors that may be associated with their motivation to quit smoking. A sample of 255 smokers, enrolled in a smoking cessation research protocol, completed measures of their smoking motivation, smoking habit, quitting history, and intent to quit in the future. Both zero-order correlational and multivariate linear regression analyses indicated that only number of cigarettes smoked per day and expectancies for success with smoking cessation were associated significantly with motivation to quit smoking. These results have implications for understanding motivational processes among methadone-maintained smokers and may help in the design of interventions that will assist this population with quitting smoking.

Adult↗

PubMed2005

Reductions in HIV risk behaviors among depressed drug injectors.

OBJECTIVE: To determine if, by reducing depressive symptoms, combined psychotherapy and pharmacotherapy reduces HIV drug risk behavior compared to an assessment-only condition for active drug injectors over 9 months. DESIGN: Randomized controlled trial. SETTING: Outpatient academic research office. PATIENTS: Active injection drug users with a DSM-IV diagnosis of major depression, dysthymia, substance-induced mood disorder with depressive features persisting for at least 3 months, or major depression plus dysthymia. In addition, participants had a Hamilton Rating Scale for Depression (MHRSD) score > 13. INTERVENTION: Psychotherapy (8 sessions of cognitive behavioral therapy) plus antidepressant pharmacotherapy over 3 months. MAIN OUTCOME MEASURES: HIV Risk Assessment Battery (RAB) drug scale scores measured at three, six and nine months, and depression remission (MHRSD score < or = 8). RESULTS: Participants (n= 109) were 64% male, 82% Caucasian, with a mean baseline MHRSD score of 20.7. Depression subtypes included major depression only (63%), substance-induced depression (17%), and double-depression (17%). Overall, study retention at nine months was 89%. Reported HIV drug risk scores decreased sharply over the first 3 months and continued to decline throughout the follow-up period. Between group differences were not significant in the intention-to-treat analysis. However, highly adherent participants had significantly lower HIV drug risk scores at 3 months (p<05), but not 6 and 9 months. Depression remission was significantly associated with lower HIV drug risk scores at follow-ups. CONCLUSIONS: Combined psychotherapy and pharmacotherapy did not produce a significant reduction in HIV drug risk beyond that seen in an assessment-only control group. The greatest declines in HIV drug risk were found in participants with high protocol adherence and those with depression remission.

Adult↗

PubMed2005

Alcohol use and sexual risk behavior among human immunodeficiency virus-positive persons.

BACKGROUND: This study was undertaken to determine if alcohol use is associated with sexual risk taking among human immunodeficiency virus (HIV)-infected persons. METHODS: Cross-sectional interviews of 262 HIV-infected patients in the Brown University AIDS Program were performed. Factors associated with any sexual activity, unsafe sexual activity, and a 4-fold typology of sexual risk were examined. Alcohol measures included drinking days, drinks per drinking day, binge drinking, and hazardous alcohol use. RESULTS: The sample was 58% male and 40% white; 67% of patients were self-identified as heterosexual, and 48% drank alcohol. Nearly two thirds of patients reported sexual activity in the past 6 months, with 38% reporting unprotected sex during that period. All measures of alcohol use were significantly associated with any sexual activity and with unsafe sexual behavior. As an example, controlling for age, HIV transmission risk, marital status, and HIV clinical indicators, hazardous drinkers were 5.64 times more likely to report unprotected sex and have multiple partners (p < 0.01) than were those not drinking at hazardous levels. CONCLUSIONS: A high proportion of HIV-infected persons were sexually active and having unsafe sex. Alcohol, at all levels of use, was associated with increased sexual risk taking.

Adult↗

PubMed2005

Caregiver burden and depression among informal caregivers of HIV-infected individuals.

BACKGROUND: Few studies have examined the factors associated with depression in informal caregivers of HIV-infected persons. OBJECTIVE: To investigate the relationship between depression and caregiver burden among informal caregivers of HIV-infected individuals. DESIGN: Cross-sectional study using baseline data from an ongoing randomized trial of a supportive telephone intervention. PARTICIPANTS: One hundred seventy-six dyads of HIV patients and their informal caregiver. MEASUREMENTS: Depression was defined as a Beck Depression Inventory >10. A Caregiver Strain Index >6 identified informal caregivers with a high caregiver burden. We used logistic regression to identify characteristics that were associated with depression in the informal caregiver. RESULTS: Informal caregivers were 42 years old (SD, 13), 53% female, 59% nonwhite, and 30% had education beyond high school. Forty-seven percent of informal caregivers were the patient's partner, 18% a friend, and 35% a family member. Twenty-seven percent of informal caregivers had a high caregiver burden, and 50% were depressed. We found significantly greater odds of informal caregiver depression with high caregiver burden (OR, 6.08; 95% CI, 2.40 to 15.4), informal caregiver medical comorbidity besides HIV (OR, 2.32; 95% CI, 1.09 to 4.92), spending all day together (OR, 3.92; 95% CI, 1.59 to 9.69), having to help others besides the HIV patient (OR, 2.55; 95% CI, 1.14 to 5.74), and duration of the HIV patient's diagnosis (OR, 1.01 per month; 95% CI, 1.00 to 1.01). CONCLUSIONS: High caregiver burden was strongly associated with depression among HIV-infected individuals' informal caregivers, who themselves had difficult life circumstances. Informal caregivers of HIV patients may be in need of both mental health services and assistance in caregiving.

Adult↗

PubMed2005

Respiratory symptom relief related to reduction in cigarette use.

INTRODUCTION: Many smokers reduce their cigarette consumption during failed attempts to quit. We report the impact of changes in consumption on smoking-related respiratory symptom severity (SRRSS). METHODS: Between February 2002 and May 2004 we recruited 383 smokers from 5 methadone maintenance programs for a randomized trial of nicotine replacement plus behavioral treatment versus nicotine replacement alone for smoking cessation. Cigarette use in the 28 days prior to the interview, and severity of SRRSS using a 7-item respiratory index, were assessed at baseline and at 3-month follow-up. OUTCOME: Baseline minus 3-month assessment difference in SRRSS score. RESULTS: Follow-up of 319 participants (83.3%), mean age 40.4 years, 51.4% male, who smoked 26.4 cigarettes per day, demonstrated a mean reduction of 16.7 cigarettes per day. A reduction in cigarette use was positively and significantly (b=0.29, t=5.16, P<.001) associated with a reduction in smoking-related symptom severity after adjusting for age, gender, race, years of regular smoking, baseline nicotine dependence, and history of treatment for asthma or emphysema. A 1 standard deviation reduction in average daily smoking (about 14.1 cigarettes) was associated with a 0.28 standard deviation decrease in smoking-related symptom severity. CONCLUSION: Reduction in symptom severity increases as absolute reduction in daily smoking increases. This is the first study to demonstrate an association between subjective short-term health changes and reduction in smoking.

Adult↗

PubMed2005

Perceptions of health risk susceptibility in methadone maintained smokers.

Despite the well-established health hazards associated with cigarette smoking, research indicates that many smokers underestimate their personal susceptibility to these health risks. Previous studies have examined this discrepancy, but validation of measures is lacking. The purpose of this investigation was to develop and validate a measure of smokers' perceptions of their own smoking-related health consequences. The Smokers' Perceived Health Risk Evaluation (SPHERE) was administered at baseline to 255 smokers recruited for a cessation trial at two methadone maintenance treatment programs in Providence, Rhode Island. The scale consisted of two 3-item subscales each demonstrating good to excellent internal consistency reliability: Smoking-Related Health (alpha = .66) and Smoking-Related Risk (alpha = .87). The subscales correlated with common smoking-related pulmonary symptoms, previous treatment for smoking-related illnesses, the physical health functioning scale of the SF-12, and participants' perceived importance of a cessation intervention. The SPHERE is a reliable instrument that captures unique dimensions of smokers' health expectancy.

Adult↗

PubMed2004

Pharmacotherapy plus psychotherapy for treatment of depression in active injection drug users.

CONTEXT: Depressive disorders are common among opiate abusers and are associated with detrimental behavioral effects. However, there is little precedent for offering active drug users complex treatments for depression. OBJECTIVE: To determine whether combined psychotherapy and pharmacotherapy treatment reduces reported depressive symptoms compared with an assessment-only condition among out-of-treatment drug injectors. DESIGN: Randomized controlled trial. SETTING: Research office located at an academic medical center. PATIENTS: Active injection drug users with a DSM-IV diagnosis of major depression, dysthymia, substance-induced mood disorder with symptoms persisting for at least 3 months, or major depression plus dysthymia, and a Modified Hamilton Rating Scale for Depression (HAM-D) score greater than 13. INTERVENTION: Combined psychotherapy (8 sessions of cognitive behavior therapy) plus pharmacotherapy (citalopram). MAIN OUTCOME MEASURES: Modified HAM-D scale scores at the end of 3 months of combined treatment. RESULTS: The 109 study subjects were 64% male and had a mean age of 36.7 years and a mean baseline HAM-D score of 20.7. Depression subtypes included major depression only (63%), substance-induced depression (17%), and major depression plus dysthymia (17%). In the intent-to-treat analysis, participants in treatment averaged 2.11 HAM-D points greater improvement than control subjects (P=.08), and 26.1% of combined treatment patients (n=53) compared with 12.5% of control patients (n=56) were in remission (P=.047). Nearly 40% of fully adherent subjects (receiving >75% of either psychotherapy or pharmacotherapy) were in remission at follow-up (odds ratio, 3.6; P=.04). CONCLUSIONS: Combined treatment for depression is significantly superior to a control condition (assessment only) in proportion of patients in remission, but not in HAM-D improvement among drug injectors. Full adherence to treatment is associated with the largest treatment effects. Our findings demonstrate that active drug users with dual diagnoses are able to participate in conventional treatment.

Adult↗

PubMed2004

Adherence to treatment of depression in active injection drug users: the minerva study.

The impact of depression on drug users is extensive, serving as a trigger for high-risk injection practices and continued drug use. Yet the ability to retain active drug users in mental health treatment has never been tested clinically. We recruited injection drug users (IDU) for a randomized study of combined psychotherapy and pharmacotherapy for the treatment of depression. Among the 53 SCID-diagnosed depressed subjects assigned to the combined treatment group, 43.4% were "fully adherent" to treatment (75% or greater attendance at cognitive-behavioral therapy (CBT) sessions or 75% or greater adherence to the pharmacotherapy regimen). The correlation of CBT attendance and pharmacotherapy use was high (r(s) =.74). Persons with double depression (major depression plus dysthymia) were most likely to be fully adherent (p =.01); frequency of heroin use was inversely associated with adherence. Developing public health treatment interventions to engage out-of-treatment, dually-diagnosed IDUs is possible.

Adolescent↗

PubMed2004

Sleep disturbances among methadone maintained patients.

We examined the relationship of sleep disturbance and demographic, mental health, drug use and other factors among 225 methadone-maintained individuals. The cohort was 78% Caucasian and 54% male with a mean age of 41 years. Sleep disturbance was measured using the Pittsburgh Sleep Quality Index (PSQI) with a score >5 indicating poor global sleep quality. Eighty-four percent of subjects had PSQI scores of six or higher. In multivariate analysis, depressive symptoms, anxiety symptoms, greater nicotine dependence, bodily pain, and unemployment were associated with poorer global sleep quality (p <.01). Targeting modifiable psychological and medical risk factors that are most strongly associated with sleep disturbance may improve quality of life in drug treatment.

Adult↗

PubMed2003

Predictors of follow-up health status in the Drug Abuse Treatment Outcome Study (DATOS).

This study examined the predictors of self-reported health status at follow-up in the Drug Abuse Treatment Outcomes Study (DATOS), a longitudinal study of drug abuse treatment programs and patients in 1991-1993. Baseline and follow-up interviews of 2966 patients in 75 programs were performed. The follow-up assessment was targeted to occur 12 months after treatment terminated; long-term methadone patients in treatment for the entire 12-month period were interviewed 24 months after intake. A composite measure, developed through principal component analysis, assessed health status. A multivariate hierarchical linear regression model adjusted for identified independent baseline predictors of health status at follow-up. Poor physical health status (including the composite measure, comorbid conditions and pain) and greater severity of psychiatric symptoms at baseline were the strongest predictors of poor health status at follow-up. Other predictors of worse health status included older age, public insurance coverage and unemployment. We conclude that baseline health status and psychiatric symptoms predict the subsequent health status of patients in substance abuse treatment patients as in other clinical populations. Future research should examine whether early identification and treatment of physical and mental health problems among patients in addiction treatment programs might remediate their adverse effects on long-term health status outcomes.

Adult↗

PubMed2003

Nicotine and drug interaction expectancies among methadone maintained cigarette smokers.

Smoking rates among persons being treated with methadone for opiate dependence are exceptionally high. Nevertheless, there is debate about whether smoking cessation has a negative effect on substance abuse treatment outcomes. To understand patient perceptions of the interaction between smoking and illicit drug use, we administered the Nicotine and Other Substances Interaction Expectancies questionnaire (NOSIE) to 168 smokers-79% Caucasian and 48% female-at two methadone programs in Providence, Rhode Island. The four summed-rating scales of this 20-item instrument exhibited good to excellent internal-consistency reliabilities. The scales measured the effect of drug use on smoking (5 items, alpha =.84), the effect of smoking on drug use (3 items, alpha =.73), smoking to cope with drug urges (9 items, alpha =.91), and the difficulty of concomitantly quitting smoking and drugs (3 items, alpha =.72).Most subjects believed drug use increased smoking, but that smoking did not trigger drug use. Relatively few reported smoking to cope with drug urges and most did not consider quitting smoking and quitting drug use to be incompatible goals. NOSIE was a reliable instrument that offers insight into patient expectations of the interaction of smoking and drug use.

Adult↗