Efectividad de los programas de mantenimiento con metadona. Una revisión de los resultados de los estudios de evaluación

[Quality of life from the perspective of addiction]

INTRODUCTION

Quality of life (QoL) is a concept that incorporates an individual's perception of health status, style and life satisfaction, mental state or well-being, and helps identify gaps in areas of functioning, facilitating the identification of risk groups and planning of preventive measures. The aim of the study is to assess the quality of life related to health (HRQOL) in patients treated for substance use in the Drug Dependency Care Unit of Monforte de Lemos (Lugo).

METHODS

Sociodemographic variables, health, consumer and other related QoL measured by the SF-36 questionnaire were studied in a sample of 100 users. Data were analysed with SPSS 15.

RESULTS

There were differences in the means in most of the eight dimensions analysed, with higher scores generally by men, although these differences did not reach statistical significance except for physical role (P=.03). A meaningful data analysis is presented based on the work situation, primary drug, and infectious and somatic diseases.

CONCLUSIONS

Overall HRQOL is lower in our users than in the general population, and it is higher in men than in women, with the most compromised area being vitality. In the present circumstances, being in active employment leads to a better HRQOL.

[Prevalence of infection by HIV and hepatitis C virus in a cohort of patients on methadone treatment]

BACKGROUND AND OBJECTIVES

Methadone maintenance treatment reduces drug-related-harm. The aims of the study were: a) to analyze the temporal tendencies of prevalence of infection by HIV and hepatitis C virus, and b) to evaluate if the adherence to methadone maintenance treatment protects against the infection by HIV and hepatitis C virus.

PATIENTS AND METHOD

Retrospective longitudinal study with All the 1,487 patients receiving treatment in the Province of Alicante between June 1990 and December 1997. The prevalence of infection by HIV and hepatitis C virus were computed. The variables associated to the infection by HIV and hepatitis C virus were recognized though a model of logistic regression.

RESULTS

The prevalence of infection by HIV decreased, and the prevalence of infection by hepatitis C virus increased along the studied period. The independent predictors with regard to the infection by HIV were the age of beginning in treatment (odds ratio [OR] = 0.95; 95% confident interval [95%CI], 0.93-0.97; p < 0.001), total time within treatment (OR = 0.99; 95%CI, 0.98-1.0; p = 0.01) and non-parenteral route of administration (OR = 0.25; 95%CI, 0.18-0.33; p < 0.001).

CONCLUSIONS

To be admitted to methadone maintenance treatment for the first time after opiate dependence has been developed and to remain in treatment for long periods of time, all that decreases the risk of infection by HIV.

[Methadone maintenance programs with supplementary services: a cost-effectiveness study]

OBJECTIVE

Methadone maintenance programs (MMP) currently offer the best treatment for opioid-addicted patients. The aim of this study was to examine the cost-effectiveness of three MMPs that offered varying levels of supplementary services. Health-related quality of life was used as a measure of effectiveness.

METHODS

A 12-month follow-up study of 586 patients beginning methadone treatment in Drug Care Centers in Barcelona was performed. The Nottingham Health Profile was used to measure quality of life. Standard unit costs and total cost per patient were calculated from activity registries. Sociodemographic, health-related and toxicological data were collected through a semi-structured interview. A cost-effectiveness analysis was performed through two multiple linear regressions with the same adjusting variables.

RESULTS

The greater the number of supplementary services involved, the higher the costs. The adjusted models revealed a significant increase in health-related quality of life (an increase of 8% in the Nottingham Health Profile) and in costs (17%) between low- and medium-intensity programs.

CONCLUSION

The medium-intensity program showed the best cost-effectiveness ratio. However, the study's limitations preclude categoric generalization of the data.