Comparison of Opioid Prescribing Patterns in the United States and Japan: Primary Care Physicians' Attitudes and Perceptions.

INTRODUCTION: Far fewer opioids are prescribed in Japan than in the United States. METHODS: We conducted an online physician survey assessing attitudes and perceptions that might influence prescribing. A Japanese version was distributed to members of the Japan Primary Care Association and an English version to members of the American Academy of Family Physicians practicing in Oregon. RESULTS: We received 461 Japanese responses and 198 from the United States, though overall response rates were low (Japan: 10.1%, United States: 18.5%). Japanese respondents reported far less opioid prescribing than US respondents, especially for acute pain (acute pain: 49.4% vs 97.0%; chronic pain: 63.7% vs 90.9%; P < .001 for both). Almost half of respondents from both countries indicated that patient expectations and satisfaction were important factors that influence prescribing. US respondents were significantly more likely to identify medical indication and legal expectation as reasons to prescribe opioids for acute pain. Most US respondents (95.4%) thought opioids were used too often, versus 6.6% of Japanese respondents. CONCLUSIONS: Lower opioid use was reported in Japan, especially for acute pain, which may help minimize long-term use. Patient expectations and satisfaction seem to influence opioid prescribing in both countries. The United States could learn from Japanese regulatory and cultural perspectives.

Association Between Initial Opioid Prescribing Patterns and Subsequent Long-Term Use Among Opioid-Naïve Patients: A Statewide Retrospective Cohort Study.

BACKGROUND: Long-term efficacy of opioids for non-cancer pain is unproven, but risks argue for cautious prescribing. Few data suggest how long or how much opioid can be prescribed for opioid-naïve patients without inadvertently promoting long-term use. OBJECTIVE: To examine the association between initial opioid prescribing patterns and likelihood of long-term use among opioid-naïve patients. DESIGN: Retrospective cohort study; data from Oregon resident prescriptions linked to death certificates and hospital discharges. PARTICIPANTS: Patients filling opioid prescriptions between October 1, 2012, and September 30, 2013, with no opioid fills for the previous 365 days. Subgroup analyses examined patients under age 45 who did not die in the follow-up year, excluding most cancer or palliative care patients. MAIN MEASURES: Exposure: Numbers of prescription fills and cumulative morphine milligram equivalents (MMEs) dispensed during 30 days following opioid initiation ("initiation month"). OUTCOME: Proportion of patients with six or more opioid fills during the subsequent year ("long-term users"). KEY RESULTS: There were 536,767 opioid-naïve patients who filled an opioid prescription. Of these, 26,785 (5.0 %) became long-term users. Numbers of fills and cumulative MMEs during the initiation month were associated with long-term use. Among patients under age 45 using short-acting opioids who did not die in the follow-up year, the adjusted odds ratio (OR) for long-term use among those receiving two fills versus one was 2.25 (95 % CI: 2.17, 2.33). Compared to those who received < 120 total MMEs, those who received between 400 and 799 had an OR of 2.96 (95 % CI: 2.81, 3.11). Patients initiating with long-acting opioids had a higher risk of long-term use than those initiating with short-acting drugs. CONCLUSIONS: Early opioid prescribing patterns are associated with long-term use. While patient characteristics are important, clinicians have greater control over initial prescribing. Our findings may help minimize the risk of inadvertently initiating long-term opioid use.

Pneumococcal Vaccination in Low-Income Latinos: An Unexpected Trend in Oregon Community Health Centers.

BACKGROUND: In cross-sectional studies, Latino and Spanish-speaking U.S. residents age 65 and over are less likely to receive pneumococcal vaccination than non-Hispanic Whites. METHODS: We performed a time-to-event, cohort analysis, in 23 Oregon community health centers of low-income patients who turned 65 in the study period (2009-2013; n = 1,248). The outcome measure was receipt of PPSV-23 in the study period by race / ethnicity, preferred language, and insurance status. RESULTS: Insured Latino patients were more likely to receive PPSV-23 than insured non-Hispanic Whites (HR = 2.05, p < .001). Uninsured Latino seniors showed no difference from insured non-Hispanic Whites in PPSV-23 receipt (HR = 1.26, p = .381) unless they averaged fewer than one clinic visit yearly (HR = 1.80, p = .001). CONCLUSIONS: Low-income Latino seniors in Oregon community health centers were immunized against pneumococcus more frequently than insured non-Hispanic Whites, although this finding was mitigated in Latinos without insurance. This finding needs further research in order to reduce adult immunization disparities in the society at large.

Randomized Controlled Trial of Home-Based Hormonal Contraceptive Dispensing for Women At Risk of Unintended Pregnancy.

CONTEXT: Women frequently experience barriers to obtaining effective contraceptives from clinic-based providers. Allowing nurses to dispense hormonal methods during home visits may be a way to reduce barriers and improve -effective contraceptive use. METHODS: Between 2009 and 2013, a sample of 337 low-income, pregnant clients of a nurse home-visit program in Washington State were randomly selected to receive either usual care or enhanced care in which nurses were permitted to provide hormonal contraceptives postpartum. Participants were surveyed at baseline and every three months postpartum for up to two years. Longitudinal Poisson mixed-effects regression analysis was used to examine group differences in gaps in effective contraceptive use, and survival analysis was used to examine time until a subsequent pregnancy. RESULTS: Compared with usual care participants, enhanced care participants had an average of 9.6 fewer days not covered by effective contraceptive use during the 90 days following a first birth (52.6 vs. 62.2). By six months postpartum, 50% of usual care participants and 39% of enhanced care participants were using a long-acting reversible contraceptive (LARC). In analyses excluding LARC use, enhanced care participants had an average of 14.2 fewer days not covered by effective contraceptive use 0-3 months postpartum (65.0 vs. 79.2) and 15.7 fewer uncovered days 4-6 months postpartum (39.2 vs. 54.9). CONCLUSION: Home dispensing of hormonal contraceptives may improve women's postpartum contraceptive use and should be explored as an intervention in communities where contraceptives are not easily accessible.