Substance abuse and psychiatric co-morbidity as predictors of premature mortality in Swedish drug abusers a prospective longitudinal study 1970 - 2006
2011

Predictors of Premature Death in Swedish Drug Abusers

Sample size: 561 publication 10 minutes Evidence: moderate

Author Information

Author(s): Anna Nyhlén, Mats Fridell, Martin Bäckström, Morten Hesse, Peter Krantz

Primary Institution: Lund University Hospital

Hypothesis

Different types of diagnostic classes and patterns of substance use at first admission predict premature death many years later.

Conclusion

The study found that male gender, opiate and barbiturate use, and neurosis predicted an increased risk of premature death in drug abusers.

Supporting Evidence

  • 204 out of 561 patients (36.4%) were deceased by 2006.
  • Male gender and opiate use were significant predictors of drug-related death.
  • Chronic alcohol addiction was associated with increased risk of non-drug related death.

Takeaway

This study shows that drug users, especially men who use opiates or barbiturates, are more likely to die young, often due to drug-related causes.

Methodology

The study followed a cohort of 561 substance abusers admitted to a detoxification unit from 1970 to 1978 and tracked their mortality until 2006 using competing risks Cox regression analysis.

Potential Biases

The categorization of psychiatric disorders may not reflect current diagnostic standards.

Limitations

The cohort design limited the number of subjects for analysis, and important life-situation data were not systematically registered.

Participant Demographics

The cohort was predominantly male (70%) with a mean age of 24.3 years at first admission.

Statistical Information

P-Value

p<0.05

Confidence Interval

95% CI = 5.5-6.8

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/1471-244X-11-122

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