Publications

2024

Anderson, Timothy S, Ashley L O’Donoghue, Shoshana J Herzig, Marc L Cohen, Naing Aung, Tenzin Dechen, Bruce E Landon, and Jennifer P Stevens. (2024) 2024. “Differences in Primary Care Follow-up After Acute Care Discharge Within and Across Health Systems: A Retrospective Cohort Study.”. Journal of General Internal Medicine 39 (8): 1431-37. https://doi.org/10.1007/s11606-024-08610-3.

BACKGROUND: Timely primary care follow-up after acute care discharge may improve outcomes.

OBJECTIVE: To evaluate whether post-discharge follow-up rates differ among patients discharged from hospitals directly affiliated with their primary care clinic (same-site), other hospitals within their health system (same-system), and hospitals outside their health system (outside-system).

DESIGN: Retrospective cohort study.

PATIENTS: Adult patients of five primary care clinics within a 14-hospital health system who were discharged home after a hospitalization or emergency department (ED) stay.

MAIN MEASURES: Primary care visit within 14 days of discharge. A multivariable Poisson regression model was used to estimate adjusted rate ratios (aRRs) and risk differences (aRDs), controlling for sociodemographics, acute visit characteristics, and clinic characteristics.

KEY RESULTS: The study included 14,310 discharges (mean age 58.4 [SD 19.0], 59.5% female, 59.5% White, 30.3% Black), of which 57.7% were from the same-site, 14.3% same-system, and 27.9% outside-system. By 14 days, 34.5% of patients discharged from the same-site hospital received primary care follow-up compared to 27.7% of same-system discharges (aRR 0.88, 95% CI 0.79 to 0.98; aRD - 6.5 percentage points (pp), 95% CI - 11.6 to - 1.5) and 20.9% of outside-system discharges (aRR 0.77, 95% CI [0.70 to 0.85]; aRD - 11.9 pp, 95% CI - 16.2 to - 7.7). Differences were greater for hospital discharges than ED discharges (e.g., aRD between same-site and outside-system - 13.5 pp [95% CI, - 20.8 to - 8.3] for hospital discharges and - 10.1 pp [95% CI, - 15.2 to - 5.0] for ED discharges).

CONCLUSIONS: Patients discharged from a hospital closely affiliated with their primary care clinic were more likely to receive timely follow-up than those discharged from other hospitals within and outside their health system. Improving care transitions requires coordination across both care settings and health systems.

Anderson, Timothy S, Shoshana J Herzig, Edward R Marcantonio, Robert W Yeh, Jeffrey Souza, and Bruce E Landon. (2024) 2024. “Medicare Transitional Care Management Program and Changes in Timely Postdischarge Follow-Up.”. JAMA Health Forum 5 (4): e240417. https://doi.org/10.1001/jamahealthforum.2024.0417.

IMPORTANCE: In 2013, Medicare implemented payments for transitional care management (TCM) services, which provide increased reimbursement to clinicians providing ambulatory care to patients after discharge from medical facilities to the community.

OBJECTIVE: To determine whether the introduction of TCM payments was associated with an increase in timely postdischarge follow-up.

DESIGN, SETTING, AND PARTICIPANTS: This cross-sectional interrupted time-series study assessed quarterly postdischarge visit rates before (2010-2012) and after (2013-2019) TCM implementation 100% sample of Medicare fee-for-service beneficiaries discharged to the community after a hospital or skilled nursing facility stay. Data analyses were performed February 1 to December 15, 2023.

EXPOSURE: Implementation of payments for TCM.

MAIN OUTCOMES AND MEASURES: Timely postdischarge primary care follow-up, defined as receipt of a primary care ambulatory visit within 14 days of discharge. Secondary outcomes included receipt of a TCM visit and specialty care follow-up.

RESULTS: The study sample comprised 79 125 965 eligible discharges. Of these, 55.4% were female; 1.5% were Asian, 12.1% Black, 5.6% Hispanic, and 79.0% were White individuals; and 79.6% were beneficiaries aged 65 years and older. Timely primary care follow-up increased from 31.5% in 2010 to 38.8% in 2019 (absolute increase 7.3%), whereas specialist follow-up increased from 27.6% to 30.8% (absolute increase 3.2%). By 2019, 11.3% of eligible patients received TCM services. Interrupted time-series analyses demonstrated an increased slope of timely primary care follow-up after the introduction of TCM services (pre-TCM slope, 0.12% per quarter vs post-TCM slope, 0.29% per quarter; difference, 0.13%; 95% CI, 0.02% to 0.22%). Receipt of timely follow-up increased for all demographic groups; however, Black, Hispanic, and Medicaid dual-eligible patients and patients residing in urban areas and counties with high-level social deprivation were less likely to receive follow-up during the study period. These disparities widened for Black patients (difference-in-differences in pre-TCM vs post-TCM slope, -0.14%; 95% CI, -0.25% to -0.2%) and patients who were Medicaid dual-eligible (difference-in-differences pre-TCM vs post-TCM slope, -0.21%; 95% CI, -0.35% to -0.07%).

CONCLUSIONS: These findings indicate that Medicare's introduction of payments for TCM services was associated with a persistent increase in the rate of timely postdischarge primary care but did not narrow demographic or socioeconomic disparities. Most beneficiaries did not receive timely primary care follow-up.

Wilson, Linnea M, Shoshana J Herzig, Michael A Steinman, Mara A Schonberg, Jennifer L Cluett, Edward R Marcantonio, and Timothy S Anderson. (2024) 2024. “Management of Inpatient Elevated Blood Pressures : A Systematic Review of Clinical Practice Guidelines.”. Annals of Internal Medicine 177 (4): 497-506. https://doi.org/10.7326/M23-3251.

BACKGROUND: Management of elevated blood pressure (BP) during hospitalization varies widely, with many hospitalized adults experiencing BPs higher than those recommended for the outpatient setting.

PURPOSE: To systematically identify guidelines on elevated BP management in the hospital.

DATA SOURCES: MEDLINE, Guidelines International Network, and specialty society websites from 1 January 2010 to 29 January 2024.

STUDY SELECTION: Clinical practice guidelines pertaining to BP management for the adult and older adult populations in ambulatory, emergency department, and inpatient settings.

DATA EXTRACTION: Two authors independently screened articles, assessed quality, and extracted data. Disagreements were resolved via consensus. Recommendations on treatment targets, preferred antihypertensive classes, and follow-up were collected for ambulatory and inpatient settings.

DATA SYNTHESIS: Fourteen clinical practice guidelines met inclusion criteria (11 were assessed as high-quality per the AGREE II [Appraisal of Guidelines for Research & Evaluation II] instrument), 11 provided broad BP management recommendations, and 1 each was specific to the emergency department setting, older adults, and hypertensive crises. No guidelines provided goals for inpatient BP or recommendations for managing asymptomatic moderately elevated BP in the hospital. Six guidelines defined hypertensive urgency as BP above 180/120 mm Hg, with hypertensive emergencies requiring the addition of target organ damage. Hypertensive emergency recommendations consistently included use of intravenous antihypertensives in intensive care settings. Recommendations for managing hypertensive urgencies were inconsistent, from expert consensus, and focused on the emergency department. Outpatient treatment with oral medications and follow-up in days to weeks were most often advised. In contrast, outpatient BP goals were clearly defined, varying between 130/80 and 140/90 mm Hg.

LIMITATION: Exclusion of non-English-language guidelines and guidelines specific to subpopulations.

CONCLUSION: Despite general consensus on outpatient BP management, guidance on inpatient management of elevated BP without symptoms is lacking, which may contribute to variable practice patterns.

PRIMARY FUNDING SOURCE: National Institute on Aging. (PROSPERO: CRD42023449250).

Kasanagottu, Koushik, Timothy S Anderson, Shrunjal Trivedi, Long H Ngo, Jeffrey L Schnipper, Ellen P McCarthy, and Shoshana J Herzig. (2024) 2024. “Racial and Ethnic Disparities in Opioid Prescribing on Hospital Discharge Among Older Adults: A National Retrospective Cohort Study.”. Journal of General Internal Medicine 39 (8): 1444-51. https://doi.org/10.1007/s11606-024-08687-w.

BACKGROUND: Disparities in opioid prescribing among racial and ethnic groups have been observed in outpatient and emergency department settings, but it is unknown whether similar disparities exist at discharge among hospitalized older adults.

OBJECTIVE: To determine filled opioid prescription rates on hospital discharge by race/ethnicity among Medicare beneficiaries.

DESIGN: Retrospective cohort study.

PARTICIPANTS: Medicare beneficiaries 65 years or older discharged from hospital in 2016, without opioid fills in the 90 days prior to hospitalization (opioid-naïve).

MAIN MEASURES: Race/ethnicity was categorized by the Research Triangle Institute (RTI), grouped as Asian/Pacific Islander, Black, Hispanic, other (American Indian/Alaska Native/unknown/other), and White. The primary outcome was an opioid prescription claim within 2 days of hospital discharge. The secondary outcome was total morphine milligram equivalents (MMEs) among adults with a filled opioid prescription.

KEY RESULTS: Among 316,039 previously opioid-naïve beneficiaries (mean age, 76.8 years; 56.2% female), 49,131 (15.5%) filled an opioid prescription within 2 days of hospital discharge. After adjustment, Black beneficiaries were 6% less likely (relative risk [RR] 0.94, 95% CI 0.91-0.97) and Asian/Pacific Islander beneficiaries were 9% more likely (RR 1.09, 95% CI 1.03-1.14) to have filled an opioid prescription when compared to White beneficiaries. Among beneficiaries with a filled opioid prescription, mean total MMEs were lower among Black (356.9; adjusted difference - 4%, 95% CI - 7 to - 1%), Hispanic (327.0; adjusted difference - 7%, 95% CI - 10 to - 4%), and Asian/Pacific Islander (328.2; adjusted difference - 8%, 95% CI - 12 to - 4%) beneficiaries when compared to White beneficiaries (409.7).

CONCLUSIONS AND RELEVANCE: Black older adults were less likely to fill a new opioid prescription after hospital discharge when compared to White older adults and received lower total MMEs. The factors contributing to these differential prescribing patterns should be investigated further.

Anderson, Timothy S, Linnea M Wilson, and Jeremy B Sussman. (2024) 2024. “Atherosclerotic Cardiovascular Disease Risk Estimates Using the Predicting Risk of Cardiovascular Disease Events Equations.”. JAMA Internal Medicine 184 (8): 963-70. https://doi.org/10.1001/jamainternmed.2024.1302.

IMPORTANCE: In 2023, the American Heart Association (AHA) developed the Predicting Risk of Cardiovascular Disease Events (PREVENT) equations to estimate 10-year risk of atherosclerotic cardiovascular disease (ASCVD), as an update to the 2013 pooled cohort equations (PCEs). The PREVENT equations were derived from contemporary cohorts and removed race and added variables for kidney function and statin use.

OBJECTIVE: To compare national estimates of 10-year ASCVD risk using the PCEs and PREVENT equations and how these equations affect recommendations for primary prevention statin therapy.

DESIGN, SETTING, AND PARTICIPANTS: This cross-sectional study included adults aged 40 to 75 years who participated in the National Health and Nutrition Examination Survey from 2017 to March 2020. Adults were defined as eligible for primary prevention statin use based on the 2019 AHA/American College of Cardiology guideline on the primary prevention of cardiovascular disease. Data were weighted to be nationally representative and were analyzed from December 27, 2023, to January 31, 2024.

MAIN OUTCOMES AND MEASURES: The 10-year ASCVD risk and eligibility for primary prevention statin therapy based on PREVENT and PCE calculations.

RESULTS: In the weighted sample of 3785 US adults (mean [SD] age, 55.7 [9.7] years; 52.5% women) without known ASCVD, 20.7% reported current statin use. The mean estimated 10-year ASCVD risk was 8.0% (95% CI, 7.6%-8.4%) using the PCEs and 4.3% (95% CI, 4.1%-4.5%) using the PREVENT equations. Across all age, sex, and racial subgroups, compared with the PCEs, the mean estimated 10-year ASCVD risk was lower using the PREVENT equations, with the largest difference for Black adults (10.9% [95% CI, 10.1%-11.7%] vs 5.1% [95% CI 4.7%-5.4%]) and individuals aged 70 to 75 years (22.8% [95% CI, 21.6%-24.1%] vs 10.2% [95% CI, 9.6%-10.8%]). The use of the PREVENT equations instead of the PCEs could reduce the number of adults meeting criteria for primary prevention statin therapy from 45.4 million (95% CI, 40.3 million-50.4 million) to 28.3 million (95% CI, 25.2 million-31.4 million). In other words, 17.3 million (95% CI, 14.8 million-19.7 million) adults recommended statins based on the PCEs would no longer be recommended statins based on PREVENT equations, including 4.1 million (95% CI, 2.8 million-5.5 million) adults currently taking statins. Based on the PREVENT equations, 44.1% (95% CI, 38.6%-49.5%) of adults eligible for primary prevention statin therapy reported currently taking statins, equating to 15.8 million (95% CI, 13.4 million-18.2 million) individuals eligible for primary prevention statins who reported not taking statins.

CONCLUSIONS AND RELEVANCE: This cross-sectional study found that use of the PREVENT equations was associated with fewer US adults being eligible for primary prevention statin therapy; however, the majority of adults eligible for receiving such therapy based on PREVENT equations did not report statin use.