• Dora H Lin, Eleanor Lucas, Irene B Murimi, Katherine Jackson, Michael Baier, Shannon Frattaroli, Andrea C Gielen, Patience Moyo, Linda Simoni-Wastila, and G Caleb Alexander.
• Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
• Addiction. 2017 Feb 1; 112 (2): 311-319.

AimsPhysicians' use of prescription drug monitoring programs (PDMPs) varies by state. Among Maryland physicians, we sought to (1) estimate the PDMP impact on changes in opioid prescribing, (2) approximate the scope of PDMP utility and (3) determine the barriers to PDMP use after its 2013 implementation.DesignCross-sectional postal survey linking responses to state records of PDMP registration and use, randomly sampling physicians within specialty and registration strata.SettingMaryland, USA.ParticipantsA total of 1000 surveyed primary care, pain and emergency medicine physicians stratified into three subpopulations: PDMP non-registrants, PDMP registrants who were non-users and PDMP users; 405 respondents (44%) of 916 eligible physicians were analysed.MeasurementsPrimary outcome measure was PDMP use. Key predictors were clinic characteristics, including type of practice and number of patients prescribed opioids.FindingsNo response-wave bias was identified. Seventy per cent of physicians believed PDMP access decreased their amount and increased their comfort level in prescribing opioids. Three-fourths (74%) of PDMP users reported the data very useful for informing opioid prescribing, although one-fifth (20%) reported difficulty accessing the data. Commonly reported barriers to PDMP use were lack of knowledge regarding its existence and registration process. In multivariable analysis after adjusting for key clinic characteristics, practicing at a managed care organization was associated with lower PDMP use [incidence rate ratio (IRR) = 0.19, 95% confidence interval (CI) = 0.05-0.73]. Conversely, physicians who prescribed opioids for more than 50 patients accessed the PDMP three times as often as those prescribing opioids for fewer than 10 patients monthly (IRR = 3.00, 95 % CI = 1.07-8.43).ConclusionsIn this survey of Maryland, USA physicians, most participants reported that prescription drug monitoring programs (PDMPs) improved their opioid prescribing by decreasing prescription amounts and increasing comfort with prescribing opioids. Common barriers to PDMP use included not knowing about the program, registration difficulties and data access difficulties.© 2016 Society for the Study of Addiction.

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