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A primary care database study of asthma among patients with and without opioid use disorders.


ABSTRACT: Substance misuse is associated with poor asthma outcome and death. People with opioid use disorder (OUD) may be at particular risk, however, there have been no case-control studies of asthma care and outcomes in this patient group. A primary care database study of patients with asthma aged 16-65 years was conducted using a matched case-control methodology. The dataset comprised 275,151 adults with asthma, of whom 459 had a clinical code indicating a lifetime history of OUD. Cases with a history of OUD were matched to controls 1:3 by age, gender, smoking status and deprivation index decile. Attendance at annual review (30%) and for immunisation (25%) was poor amongst the overall matched study population (N?=?1832). Compared to matched controls, cases were less likely to have attended for asthma review during the previous 12 months (OR?=?0.60, 95% CI 0.45-0.80) but had similar immunisation rates. Higher rates of ICS (OR?=?1.50, 1.13-1.98) and oral prednisolone use (OR?=?1.71, 1.25-2.40) were seen amongst those with a history of OUD and 7.2% had a concurrent diagnosis of COPD (OR?=?1.86, 1.12-2.40). We found that people with asthma and a history of OUD have worse outcomes on several commonly measured metrics of asthma care. Further research is required to identify reasons for these findings, the most effective strategies to help this vulnerable group access basic asthma care, and to better understand long-term respiratory outcomes.

SUBMITTER: Oliver P 

PROVIDER: S-EPMC7170905 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature

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A primary care database study of asthma among patients with and without opioid use disorders.

Oliver Phillip P   Hulin Joe J   Mitchell Caroline C  

NPJ primary care respiratory medicine 20200420 1


Substance misuse is associated with poor asthma outcome and death. People with opioid use disorder (OUD) may be at particular risk, however, there have been no case-control studies of asthma care and outcomes in this patient group. A primary care database study of patients with asthma aged 16-65 years was conducted using a matched case-control methodology. The dataset comprised 275,151 adults with asthma, of whom 459 had a clinical code indicating a lifetime history of OUD. Cases with a history  ...[more]

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