A follow-up study of heroin addicts (VEdeTTE2): study design and protocol
2007

VEdeTTE2 Study Design and Protocol for Heroin Addicts

Sample size: 2200 publication Evidence: moderate

Author Information

Author(s): Vigna-Taglianti Federica D, Mathis Federica, Diecidue Roberto, Burroni Paola, Iannaccone Antonio, Lampis Fabio, Zuccaro Piergiorgio, Pacifici Roberta, Versino Elisabetta, Davoli Marina, Faggiano Fabrizio

Primary Institution: Piedmont Centre for Drug Addiction Epidemiology, ASL 5 – Grugliasco, Italy

Hypothesis

The VEdeTTE2 study aims to evaluate the effectiveness of treatments on long-term outcomes for heroin addicts.

Conclusion

The pilot phase of the VEdeTTE2 study demonstrated the importance of careful planning and procedures to limit attrition and improve data collection.

Supporting Evidence

  • The pilot study traced 88% of patients, indicating effective contact procedures.
  • Sensitivity of the biological test for heroin was 78%, while for cocaine it was 42.3%.
  • Improvements to study procedures were made based on pilot study findings.

Takeaway

This study is trying to help people who used heroin by checking how well treatments work over a long time.

Methodology

The study involved tracing a sample of 2,200 patients from a previous cohort, conducting interviews, and collecting biological samples for drug testing.

Potential Biases

Potential bias may arise from the differences in contact rates between external interviewers and NHS treatment centre personnel.

Limitations

The study may face challenges in tracing patients and ensuring accurate self-reported drug use.

Participant Demographics

{"gender_distribution":{"male":61,"female":39},"education":{"less_than_9_years":70.7,"9_to_13_years":26.8,"more_than_13_years":0},"employment_status":{"steady_job":58.5,"temporary_job":7.3,"unemployed":29.3}}

Statistical Information

P-Value

0.007

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/1747-597X-2-9

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