Factors associated with client-reported HIV infection among clients entering methadone treatment.

To determine demographic and behavioral factors associated with client-reported HIV infection among new enrollees in methadone maintenance treatment programs (MMTPs) in Massachusetts and Connecticut, we examined ethnographic data and interview data from MMTP clients (N = 674). Clients responded to questions about behaviors in the 30 days before drug treatment. ETHNOGRAPH was used to analyze qualitative data, and logistic regression analysis was used to identify variables associated with client-reported HIV infection. Statistical significance was set at p < .05. The client-reported HIV infection rate was 20% (132/674). Odds ratios for factors associated with client-reported HIV infection were being white (0.53), increase in age (1.07), use of non-injected heroin (0.12), use of injected heroin (6.24), cocaine injection (1.78), sharing of "works" with strangers (2.15), and "safer sex" behavior (4.04). Additionally, 35% of those who did not use illicit drugs reported being seropositive. The qualitative data suggested HIV positive clients were concerned about protecting sex partners, and learning of HIV infection motivated some to stop using drugs. Although some clients engaged in low-risk behaviors, others did not, therefore the potential for HIV transmission among injection drug users (IDUs) in Connecticut and Massachusetts exists. HIV prevention and drug treatment program personnel should reinforce and build on the low-risk behaviors that are acceptable and adopted by some in this population.

Test-retest reliability of psychoactive substance abuse and dependence diagnoses in telephone interviews using a modified Diagnostic Interview Schedule-Substance Abuse Module.

The test-retest reliability of lifetime substance abuse and dependence diagnoses obtained by telephone interviewers was investigated. Trained personnel administered two identical interviews based on a modified Diagnostic Interview Schedule-Substance Abuse Module (DISSAM) approximately a week apart for 100 respondents, of whom 55 were receiving alcohol or other drug treatment and 45 and randomly selected from residential households in one Michigan county. The uncorrected agreement for all lifetime dependence diagnoses exceeded 93% for all six categories assessed and the more conservative chance corrected agreement (Cohen's Kappa coefficient kappa) was .92 (alcohol),.76 (marijuana),.87 (cocaine), and .71 (other opiates). Kappa coefficients for hallucinogens and heroin dependence could not be calculated due to low (i.e., 5% or less) base rates. Likewise, kappa was calculated only for a single abuse diagnosis, alcohol, with kappa = .42 and 95% agreement. In the interpretation of kappa, the standard applied was: kappa ranging from .41 to .60 represented moderate agreement, kappa ranging from .61 to .80 represented substantial agreement, and kappa ranging from .81 to 1.00 represented excellent agreement. Thus, test-retest reliability was excellent for lifetime alcohol and cocaine dependence and was substantial for lifetime marijuana and other opiates dependence. These results indicate that lifetime psychoactive substance abuse diagnoses can be obtained fairly reliably over the telephone using trained lay interviewers.