Literature Collection

Many people face problems about physical, mental, and social dimensions of health, and may have complex needs. They often experience a mismatch between their needs and the ability of the healthcare system to meet them, resulting in under- or overutilization of the healthcare system. On one hand, improving access to community-based primary healthcare for hard-to-reach populations should bring all healthcare and social services to one point of contact, near the community. On the other hand, better addressing the unmet needs of people who overuse healthcare services calls for integrated care among providers across all settings and sectors. In either case, intersectoral action between healthcare and social professionals and resources remains central to bringing care closer to the people and the community, enhancing equitable access, and improving health status. However, efforts to implement integrated care are unevenly weighted toward clinical and professional strategies (micro level), which could jeopardize our ability to implement and sustain integrated care. The development of appropriate policies and governance mechanisms (macro level) is essential to break down silos, promote a coherent intersectoral action, and improve health equity.

Buprenorphine maintenance therapy (BMT) expands treatment access for opioid dependence and can be integrated into primary health-care settings. Treating opioid dependence, however, should ideally improve other aspects of overall health, including preventive services. Therefore, we examined how BMT affects preventive health-care outcomes, specifically nine nationally recommended primary care quality health-care indicators (QHIs), within federally qualified health centers (FQHCs) from an observational cohort study of 266 opioid-dependent patients initiating BMT between 07/01/07 and 11/30/08 within Connecticut’s largest FQHC network. Nine nationally recommended preventive QHIs were collected longitudinally from electronic health records, including screening for chronic infections, metabolic conditions, and cancer. A composite QHI score (QHI-S), based on the percentage of eligible QHIs achieved, was categorized as QHI-S ≥80 % (recommended) and ≥90 % (optimal). The proportion of subjects achieving a composite QHI-S ≥80 and ≥90 % was 57.1 and 28.6 %, respectively. Screening was highest for hypertension (91.0 %), hepatitis C (80.1 %), hepatitis B (76.3 %), human immunodeficiency virus (71.4 %), and hyperlipidemia (72.9 %) and lower for syphilis (49.3 %) and cervical (58.5 %), breast (44.4 %), and colorectal (48.7 %) cancer. Achieving QHI-S ≥80 % was positively and independently associated with ≥3-month BMT retention (adjusted odds ratio (AOR) = 2.19; 95 % confidence interval (CI) = 1.18–4.04) and BMT prescription by primary care providers (PCPs) rather than addiction psychiatric specialists (AOR = 3.38; 95 % CI = 1.78–6.37), and negatively with being female (AOR = 0.30; 95 % CI = 0.16–0.55). Within primary health-care settings, achieving greater nationally recommended health-care screenings or QHIs was associated with being able to successfully retain patients on buprenorphine longer (3 months or more) and when buprenorphine was prescribed simultaneously by PCPs rather than psychiatric specialists. Decreased preventive screening for opioid-dependent women, however, may require gender-based strategies for achieving health-care parity. When patients can be retained, integrating BMT into urban FQHCs is associated with improved health outcomes including increased multiple preventive health-care screenings.

The Affordable Care Act (ACA) was expected to benefit patients with substance use disorders, including opioid use disorders (OUDs). This study examined buprenorphine use and health services utilization by patients with OUDs pre- and post-ACA in a large health care system. Using electronic health record data, we examined demographic and clinical characteristics (substance use, psychiatric and medical conditions) of two patient cohorts using buprenorphine: those newly enrolled in 2012 ("pre-ACA," N = 204) and in 2014 ("post-ACA," N = 258). Logistic and negative binomial regressions were used to model persistent buprenorphine use, and to examine whether persistent use was related to health services utilization. Buprenorphine patients were largely similar pre- and post-ACA, although more post-ACA patients had a marijuana use disorder (p < .01). Post-ACA patients were more likely to have high-deductible benefit plans (p < .01). Use of psychiatry services was lower post-ACA (IRR: 0.56, p < .01), and high-deductible plans were also related to lower use of psychiatry services (IRR: 0.30, p < .01). The relationship between marijuana use disorder and prescription opioid use is complex, and deserves further study, particularly with increasingly widespread marijuana legalization. Access to psychiatry services may be more challenging for buprenorphine patients post-ACA, especially for patients with deductible plans.

Substantial increases in opioid-related morbidity and mortality have motivated the implementation of federal policies to expand the buprenorphine prescribing capacity of primary care providers and other clinicians. Using a national prescription database that covered 72-92 percent of the US population during 2010-18, we analyzed trends in buprenorphine treatment by prescriber specialty. Buprenorphine treatment rates by primary care providers increased from 12.9 people per 10,000 population in 2010 to 27.4 in 2018. The numbers for psychiatrists and addiction medicine specialists increased from 8.7 to 12.0 per 10,000 and those for other prescribers from 5.8 to 16.3 per 10,000. However, treatment of people ages 15-24 by primary care providers and by psychiatrists and addiction medicine specialists declined significantly. Across all patient age and provider groups, most patients were not retained on buprenorphine for the benchmark period of at least 180 days. Despite a recent national increase in buprenorphine treatment fueled primarily by nonspecialists, challenges persist with buprenorphine access-especially for younger people-and with retaining patients in long-term treatment.