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SAGE Open Med. 2018 Jun 27;6:2050312118784311. doi: 10.1177/2050312118784311. eCollection 2018.

Determinants of hospitalizations for pneumonia among Finnish drug users.

SAGE open medicine

Olubunmi O Olubamwo, Ifeoma N Onyeka, Alex Aregbesola, Kimmo Ronkainen, Jari Tiihonen, Jaana Föhr, Jussi Kauhanen

Affiliations

  1. Institute of Public Health and Clinical Nutrition, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland.
  2. Department of Forensic Psychiatry, University of Eastern Finland, Niuvanniemi Hospital, Kuopio, Finland.
  3. Department of Clinical Neuroscience, Karolinska Institute, Stockholm, Sweden.
  4. Helsinki Deaconess Institute, Helsinki, Finland.

PMID: 30013782 PMCID: PMC6041852 DOI: 10.1177/2050312118784311

Abstract

OBJECTIVE: The study examined the determinants of being hospitalized for pneumonia in a large cohort of drug users.

METHODS: Information of 4817 clients seeking treatment for illicit drug use was linked with the Finnish hospital discharge register to identify those who were hospitalized with main/primary diagnoses of pneumonia during 1997-2013. Cox regression models were used to examine the association between age, gender, homelessness, and route of drug administration of the primary drug at initial clinical consultation and pneumonia hospitalization. Findings were presented as adjusted hazard ratios and 95% confidence intervals.

RESULTS: There were 354 persons diagnosed with pneumonia, with a total of 522 hospitalizations at the end of 2013. The univariate Cox models revealed that being over 44 years of age, male gender, homelessness, and intravenous drug use at initial clinical consultation increased the risk of being hospitalized for pneumonia. In the fully adjusted multivariate model, being over 44 years was the strongest factor independently associated with pneumonia hospitalization (adjusted hazard ratio: 2.67, 95% confidence interval: 1.56-4.57,

CONCLUSION: Vaccination, measures addressing housing instability, safe injecting and good hygienic practices, and treating underlying drug use problems could help to reduce morbidity for pneumonia in this cohort.

Keywords: Substance abuse; epidemiology; hospitalization; morbidity; pneumonia; register linkage; risk factor

Conflict of interest statement

Declaration of conflicting interests: The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

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