A quasi-experimental evaluation of dried blood spot testing through community pharmacies in the Tayside region of Scotland

Objective

Comparison of uptake of dried blood spot testing (DBST) for hepatitis C virus (HCV) infection between community pharmacies and established services.

Design

Quantitative evaluation of a service development with qualitative process evaluation undertaken in parallel.

Setting

Six pharmacies from 36 community pharmacies within Dundee City, a large urban settlement with high levels of socioeconomic deprivation.

Participants

Patients in receipt of opioid substitution therapy (OST) not tested for HCV within 12 months. The 6 pharmacies provided OST for approximately 363 patients from a cohort of 1385 patients within Dundee City.

Intervention

Provision of DBST by pharmacists.

Main outcome measure

Receipt of DBST between January and December 2014.

Results

43 of 143 service users with no record of testing from the 6 community pharmacies accepted DBST. Of 561 from the remaining 1022 service users with no record of testing, 75 were tested for HCV (30% vs 13%). The OR for increased uptake of testing within the 6 pharmacies was 2.25 (95% CI 1.48 to 3.41, Z statistic=3.81, p=<0.0001) compared with other services. The DBST taken by the pharmacies provided 12 patients with a reactive test. The process evaluation identified key themes important to staff and recipients of the service. A logic model was constructed.

Limitations

Non-experimental service evaluation performed in community pharmacies records service activity in one location across a single time period.

Interpretation

Some evidence that DBST from community pharmacies may be feasible. Service users received the service positively. Staff reported that DBST was straightforward and achievable.

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