Implementation of a Standardized Screening Process to Increase Palliative Care Referrals in Primary Care: An Evidence-Based Quality Approach

Despite initiatives to increase palliative care awareness, referrals in primary care settings are still primarily based on provider judgment, causing a lack of appropriate referrals and disparities in access to palliative care resources. The purpose of this quality improvement project was to develop and implement an evidence-based, standardized palliative care referral protocol to increase the palliative care referral rate for eligible patients at a primary care clinic. The project used a preimplementation and postimplementation design with the use of the RE-AIM (Reach, Effectiveness, Adoption, Implementation, and Maintenance) framework to successfully implement and evaluate the standardized referral process. Over the 10-month project period, the palliative care referral rate increased from 2% (4/193) preimplementation to 11% (16/147) postimplementation of the standardized referral process, which is an increase of 9%. Taking into consideration the potential impact of multiple extraneous variables, there was an overall decrease of 69% in emergency room visits and 73% in hospitalizations for patients who received a palliative care referral. These outcomes support expansion of the standardized referral process throughout other primary care clinics to increase palliative care referrals and sustain a high level of quality patient care.

Defining and Validating Criteria to Identify Populations Who May Benefit From Home-Based Primary Care

BACKGROUND

Home-based primary care (HBPC) is an important care delivery model for high-need older adults. Currently, target patient populations vary across HBPC programs, hindering expansion and large-scale evaluation.

OBJECTIVES

Develop and validate criteria that identify appropriate HBPC target populations.

RESEARCH DESIGN

A modified Delphi process was used to achieve expert consensus on criteria for identifying HBPC target populations. All criteria were defined and validated using linked data from Medicare claims and the National Health and Aging Trends Study (NHATS) (cohort n=21,727). Construct validation involved assessing demographics and health outcomes/expenditures for selected criteria.

SUBJECTS

Delphi panelists (n=29) represented diverse professional perspectives. Criteria were validated on community-dwelling Medicare beneficiaries (age ≥70) enrolled in NHATS.

MEASURES

Criteria were selected via Delphi questionnaires. For construct validation, sociodemographic characteristics of Medicare beneficiaries were self-reported in NHATS, and annual health care expenditures and mortality were obtained via linked Medicare claims.

RESULTS

Panelists proposed an algorithm of criteria for HBPC target populations that included indicators for serious illness, functional impairment, and social isolation. The algorithm's Delphi-selected criteria applied to 16.8% of Medicare beneficiaries. These HBPC target populations had higher annual health care costs [Med (IQR): $10,851 (3316, 31,556) vs. $2830 (913, 9574)] and higher 12-month mortality [15% (95% CI: 14, 17) vs. 5% (95% CI: 4, 5)] compared with the total validation cohort.

CONCLUSIONS

We developed and validated an algorithm to define target populations for HBPC, which suggests a need for increased HBPC availability. By enabling objective identification of unmet demands for HBPC access or resources, this algorithm can foster robust evaluation and equitable expansion of HBPC.

The quality of home-based primary care delivered by nurse practitioners: A national Medicare claims analysis

BACKGROUND

As the US population ages, there is an increasing demand for home-based primary care (HBPC) by those with Alzheimer's/dementia, multiple chronic conditions, severe physical limitations, or those facing end-of life. Nurse practitioners (NPs) are increasingly providing HBPC, yet little is known about their quality of care in this unique setting.

METHODS

This observational study uses Medicare claims data from 2018 to assess the quality of care for high-intensity HBPC users (5 or more visits/year) based on provider type (NP-only, physician (MD)-only, or both NP and MDs). We employ 12 quality measures from 3 care domains: access and prevention, acute care utilization, and end-of-life. Analysis includes bivariate comparisons and logistic regression models that adjust for demographic, clinical, and geographic characteristics.

RESULTS

Among the 574,567 beneficiaries with 5 or more HBPC visits, 37% saw an NP, 37% saw a MD, and 27% saw both NPs and MDs. In multivariate models, those receiving HBPC from an NP or both NP-MD are significantly more likely to receive a flu shot than the MD-only group, but less likely to access preventive care. NP-only care is associated with more acute care hospitalizations, avoidable ED visits, and fall-related injuries, but significantly fewer avoidable admissions. For end-of-life care, those with NP-only or both NP-MD care are significantly more likely to have an advanced directive, be in hospice in the last 3 days of life, and more likely to die in hospice. The NP group is also more likely to die in the next year.

CONCLUSIONS

HBPC patients are complex, with both palliative and curative needs. NPs provide almost half of HBPC in the Medicare program, to patients who are possibly sicker than those treated by physicians, with similar quality to MDs.

Survival and characteristics of older adults receiving home-based medical care: A nationwide analysis in Taiwan

BACKGROUND

In Taiwan, the National Health Insurance Administration initiated the integrated home-based medical care (iHBMC) program in 2016 to improve accessibility to health care for homebound patients. This study aimed to describe the characteristics of older people receiving iHBMC services in Taiwan as well as the relationship between patient characteristics and survival.

METHODS

All older adults registered in the iHBMC application dataset were enrolled between March 1, 2016, and December 31, 2018. Data on social determinants of health (income level, residential area), functional status, consciousness status, nasogastric tube or urinary catheter placement, and major diseases were retrieved from the database. Data on the frequency of multidisciplinary team members' visits were collected. The survival rate was investigated using the Kaplan-Meier method. A Cox proportional hazards univariate regression was conducted to analyze factors influencing survival rates.

RESULTS

A total of 41,079 patients aged ≥65 years were enrolled in iHBMC services. The results showed that the one-year survival rates were 72.1%, 67.4%, and 14.7% in the home-based primary care (HBPC), home-based primary care plus (HBPC-Plus), and home-based palliative care (HBPalC), respectively. Nearly two-thirds of the HBPC-Plus patients underwent nasogastric tube placement. The Cox proportional hazards univariate regression analysis showed that a low urbanization level, a low income level, a low functional status, and an impaired consciousness status were significant predictors of poor survival after adjustment for confounding variables.

CONCLUSIONS

Older adults receiving iHBMC services had a high mortality rate. The high rate of feeding tube use indicated that education and support for both clinical practitioners and family caregivers regarding careful hand feeding are warranted. There was a relationship between low income levels and poor survival in rural areas. Further research on whether social care could impact prognosis should be considered.

Impact of the Timing of Integrated Home Palliative Care Enrolment on Emergency Department Visits

BACKGROUND

The association between timing of integrated home palliative care (IHPC) enrolment and emergency department (ED) visits is still under debate, and no studies investigated the effect of the timing of IHPC enrolment on ED visits, according to their level of emergency. This study aimed to investigate the impact of the timing of IHPC enrolment on different acuity ED visits.

METHODS

A retrospective, pre-/post-intervention study was conducted from 2013 to 2019 in Italy. Analyses were stratified by IHPC duration (short ≤30 days; medium 31-90 days; long >90 days) and triage tags (white/green: low level of emergency visit; yellow/red: medium-to-high level). The impact of the timing of IHPC enrolment was evaluated in two ways: incidence rate ratios (IRRs) of ED visits were determined (1) before and after IHPC enrolment in each group and (2) post-IHPC among groups.

RESULTS

A cohort of 17 983 patients was analysed. Patients enrolled early in the IHPC programme had a significantly lower incidence rate of ED visits than the pre-enrolment period (IRR=0.65). The incidence rates of white/green and yellow/red ED visits were significantly lower post-IHPC enrolment for patients enrolled early (IRR=0.63 and 0.67, respectively). All results were statistically significant (P<.001). Comparing the IHPC groups after enrolment versus the short group, medium and long IHPC groups had a significant reduction of ED visits (IRR=0.37, IRR=0.14 respectively), showing a relation between the timing of IHPC enrolment and the incidence of ED visits. A similar trend was observed after accounting for triage tags of ED visits.

CONCLUSION

The timing of IHPC enrolment is related with a variation of the incidence of ED visits. Early IHPC enrolment is related to a high significant reduction of ED visits when compared to the 90-day pre-IHPC enrolment period and to late IHPC enrolment, accounting for both low-level and medium-to-high level emergency ED visits.

The Impact of Ambulatory Dementia Care Models on Hospitalization of Persons Living With Dementia: A Systematic Review

This systematic review presents an overview of the existing dementia care models in various ambulatory care settings under three categories (i.e., home- and community-based care models, partnership between health systems and community-based resources, and consultation models) and their impact on hospitalization among Persons Living with Dementia (PLWD). PRISMA guidelines were applied, and our search resulted in a total of 13 studies focusing on 11 care models. Seven studies reported that utilization of dementia care models was associated with a modest reduction in hospitalization among community-residing PLWD. Only two studies reported statistically significant results. Dementia care models that were utilized in specialty ambulatory care settings such as memory care showed more promising results than traditional primary care. To develop a better understanding of how dementia care models can be improved, future studies should explore how confounders (e.g., stage of dementia) influence hospitalization.

Home-based primary care visits by nurse practitioners

BACKGROUND

With rapidly growing numbers of homebound older adults, the need for effective home-based health interventions is increasingly recognized. Advanced practice registered nurses (NPs) are one of the most common providers of home-based primary care. Limited information is available to address the scope and nature of NP-led home-based primary care and associated outcomes.

OBJECTIVE

To synthesize research evidence of NP visits in home-based primary care.

DATA SOURCES

Six electronic databases-PubMed, Cumulative Index to Nursing and Allied Health Literature, Embase, Cochrane, Web of Science, and Scopus-were searched to identify peer-reviewed research articles addressing home-based primary care interventions led by NPs. Independent screening resulted in 17 relevant articles from 14 unique studies to include in the review.

CONCLUSIONS

Nurse practitioners provided health assessments, education, care planning and coordination primarily by face-to-face home visits. Despite a variability in terms of study design, setting, and sample, NP-led home-based primary care was in general associated with less hospitalization and fewer emergency department visits. Evidence was mixed in relation to patient-reported outcomes such as subjective health, functional status, and symptoms. Costs and patient or caregiver satisfaction were additional outcomes addressed, but the findings were inconsistent.

IMPLICATIONS FOR PRACTICE

Recent policy changes to authorize NPs to independently assess, diagnose, and order home care services directly affect how NPs approach home-based primary care programs. Our findings support NP-led home-based primary care to decrease consequential health utilization and suggest the need for further evaluating the care models in diverse populations with more patient-reported and caregiver outcomes.

A mixed-methods evaluation of home-based primary care in dementia within an integrated system

BACKGROUND

No prior studies have examined the effects of home-based primary care (HBPC) in persons living with dementia (PLWD), within an ecosystem of serious illness care in an integrated healthcare system. Our objectives were to compare the characteristics of PLWD receiving HBPC and their hospital utilization and end-of-life care, with those of a matched comparison group, and to understand the experiences of family caregivers of PLWD receiving HBPC.

METHODS

This mixed-methods study used a retrospective observational cohort design with PLWD receiving HBPC (n = 287) from 2015 to 2020 and a strata-matched comparison group (n = 861), and qualitative phone interviews with 16 HBPC family caregivers in 2020. Inverse probability of treatment weighting propensity score-adjusted models were used to compare time-to-first hospital-based utilization and, for decedents, home palliative and hospice care and place of death. Care experience was captured through caregiver interviews.

RESULTS

Patients receiving HBPC had a similar risk of hospital utilization [adjusted hazard ratio, 1.06 (95% CI: 0.89-1.26), p = 0.51] as a matched non-HBPC comparison group after a median follow-up of 199 days. However, HBPC decedents (n = 159) were more likely to receive home palliative care or hospice [rate ratio, RR: 1.23 (95% CI: 1.07-1.42), p < 0.01] and to die at home [RR: 1.66 (95% CI: 1.35-2.05), p < 0.001] than were non-HBPC decedents (n = 423). Caregivers reported that HBPC provided coordinated, continuous, and convenient care that was aligned with families' priorities and goals; however, some expressed unmet needs, especially for help paying for personal care and medical supplies/equipment, and a desire for clearer communication about program operations and more quality oversight for contract services.

CONCLUSIONS

Although HBPC for PLWD was associated with a similar risk of hospital utilization compared to a matched non-HBPC comparison group, HBPC resulted in more patient-centered end-of-life care for decedents. Prospective studies of HBPC that further elicit and address unmet needs are warranted.

Integration of a Palliative Approach in the Care of Older Adults with Dementia in Primary Care Settings: A Scoping Review

A palliative approach to care aims to meet the needs of patients and caregivers throughout a chronic disease trajectory and can be delivered by non-palliative specialists. There is an important gap in understanding the perspectives and experiences of primary care providers on an integrated palliative approach in dementia care and the impact of existing programs and models to this end. To address these, we undertook a scoping review. We searched five databases; and used descriptive numerical summary and narrative synthesizing approaches for data analysis. We found that: (1) difficulty with prognostication and a lack of interdisciplinary and intersectoral collaboration are obstacles to using a palliative approach in primary care; and (2) a palliative approach results in statistically and clinically significant impacts on community-dwelling individuals, specifically those with later stages of dementia. There is a need for high-quality research studies examining the integrated palliative approach models and initiation of these models sooner in the care trajectory for persons living with mild and moderate stages of dementia in the community.

Home-based primary care: A systematic review of the literature, 2010-2020

BACKGROUND

Although more than seven million older adults struggle or are unable to leave their homes independently, only a small minority access home-based primary care (HBPC). Despite substantial growth of HBPC, fueled by growing evidence supporting positive patient outcomes and cost savings, the population remains dramatically underserved and many evidence gaps still exist around scope of practice and key issues in care delivery and quality. Understanding the current state of the field is critical to the delivery of high-quality home-based care.

METHODS

We conducted a systematic search of the peer-reviewed literature on HBPC, published between January 2010 and January 2020, using Medline, CINAHL, Embase, Web of Science, and Scopus online libraries. All studies were evaluated by two members of the research team, and key findings were extracted.

RESULTS

The initial search yielded 1730 unique studies for screening. Of these initial results, 1322 were deemed not relevant to this review. Of the 408 studies deemed potentially relevant, 79 were included in the study. Researchers identified five overarching themes: the provision of HBPC, the composition of care teams, HBPC outcomes, the role of telehealth, and emergency preparedness efforts.

CONCLUSION

The need and desire for growth of HBPC has been highlighted by the recent COVID-19 pandemic. Current research on HBPC finds a diverse scope of practice, successful use of interdisciplinary teams, positive outcomes, and increasing interest in telehealth with many areas ripe for further research.

Evaluation of a Home-Based, Nurse Practitioner-led Advanced Illness Care Program

OBJECTIVES

In the United States, people with serious illness often experience gaps and discontinuity in care. Gaps are frequently exacerbated by limited mobility, need for social support, and challenges managing multiple comorbidities. The Advanced Illness Care (AIC) Program provides nurse practitioner-led, home-based care for people with serious or complex chronic illnesses that specifically targets palliative care needs and coordinates with patients' primary care and specialty health care providers. We sought to investigate the effect of the AIC Program on hospital encounters [hospitalizations and emergency department (ED) visits], hospice conversion, and mortality.

DESIGN

Retrospective nearest-neighbor matching.

SETTING AND PARTICIPANTS

Patients in AIC who had ≥1 inpatient stay within the 60 days prior to AIC enrollment to fee-for-service Medicare controls at 9 hospitals within one health system.

METHODS

We matched on demographic characteristics and comorbidities, with exact matches for diagnosis-related group and home health enrollment. Outcomes were hospital encounters (30- and 90-day ED visits and hospitalizations), hospice conversion, and 30- and 90-day mortality.

RESULTS

We included 110 patients enrolled in the AIC Program matched to 371 controls. AIC enrollees were mean age 77.0, 40.9% male, and 79.1% white. Compared with controls, AIC enrollees had a higher likelihood of ED visits at 30 [15.1 percentage points, confidence interval (CI) 4.9, 25.3; P = .004] and 90 days (27.8 percentage points, CI 16.0, 39.6; P < .001); decreased likelihood of hospitalization at 30 days (11.4 percentage points, CI -17.7, -5.0; P < .001); and a higher likelihood of converting to hospice (22.4 percentage points, CI 11.4, 33.3; P < .001).

CONCLUSIONS

The AIC Program provides care and coordination that the home-based serious illness population may not otherwise receive.

IMPLICATIONS

By identifying and addressing care needs and gaps in care early, patients may avoid unnecessary hospitalizations and receive timely hospice services as they approach the end of life.

Selection Bias in Observational Studies of Palliative Care: Lessons Learned

CONTEXT

Palliative care (PC) programs are typically evaluated using observational data, raising concerns about selection bias.

OBJECTIVES

To quantify selection bias because of observed and unobserved characteristics in a PC demonstration program.

METHODS

Program administrative data and 100% Medicare claims data in two states and a 20% sample in eight states (2013-2017). The sample included 2983 Medicare fee-for-service beneficiaries aged 65+ participating in the PC program and three matched cohorts: regional; two states; and eight states. Confounding because of observed factors was measured by comparing patient baseline characteristics. Confounding because of unobserved factors was measured by comparing days of follow-up and six-month and one-year mortality rates.

RESULTS

After matching, evidence for observed confounding included differences in observable baseline characteristics, including race, morbidity, and utilization. Evidence for unobserved confounding included significantly longer mean follow-up in the regional, two-state, and eight-state comparison cohorts, with 207 (P < 0.001), 192 (P < 0.001), and 187 (P < 0.001) days, respectively, compared with the 162 days for the PC cohort. The PC cohort had higher six-month and one-year mortality rates of 53.5% and 64.5% compared with 43.5% and 48.0% in the regional comparison, 53.4% and 57.4% in the two-state comparison, and 55.0% and 59.0% in the eight-state comparison.

CONCLUSION

This case study demonstrates that selection of comparison groups impacts the magnitude of measured and unmeasured confounding, which may change effect estimates. The substantial impact of confounding on effect estimates in this study raises concerns about the evaluation of novel serious illness care models in the absence of randomization. We present key lessons learned for improving future evaluations of PC using observational study designs.

Connecting Provider to home: A home-based social intervention program for older adults

OBJECTIVE

Patients with multiple medical conditions and complex social issues are at risk for high utilization and poor outcomes. The Connecting Provider to Home program deployed teams of a social worker and a community health worker (CHW) to support patients with social issues and access to primary care. Our objectives were to examine the impact of the program on utilization and satisfaction with care among older adults with complex social and medical issues.

DESIGN

Retrospective quasi-experimental observational study with matched comparator group.

SETTING

Community-based program in Southern California.

PARTICIPANTS

Four hundred twenty community dwelling adults.

INTERVENTION

Community-based healthcare program delivered by a social worker and CHW team for older adults with complex medical and social needs.

MEASUREMENTS

Acute hospitalization and emergency department (ED) visits in the 12 months preceding and following enrollment in the pilot program. A "difference-in-difference" analysis using a matched comparator group was conducted. Comparator group data of patients receiving usual care were obtained. Surveys were conducted to assess patient satisfaction and experiences with the program.

RESULTS

The mean age of patients was 74 years, and the program demonstrated statistically significant reductions in acute hospitalizations and ED use compared with 700 comparator patients. Pre/post-acute hospitalizations and ED visits were reduced in the intervention group. The average per patient per year reduction in acute hospitalizations was -0.66, whereas the average per patient reduction in ED use was -0.57. Patients enrolled in the program reported high levels of satisfaction and rated the program favorably.

CONCLUSIONS

A care model with a social worker and CHW can be linked to primary care to address patient social needs and potentially reduce utilization of healthcare services and enhance patient experiences with care.

Exploring the dimensions of patient experience for community-based care programmes in a multi-ethnic Asian context

Introduction

The aim of this study is to explore patients’ experiences with community-based care programmes (CCPs) and develop dimensions of patient experience salient to community-based care in Singapore. Most countries like Singapore are transforming its healthcare system from a hospital-centric model to a person-centered community-based care model to better manage the increasing chronic disease burden resulting from an ageing population. It is thus critical to understand the impact of hospital to community transitions from the patients’ perspective. The exploration of patient experience will guide the development of an instrument for the evaluation of CCPs for quality improvement purposes.

Methods

A qualitative exploratory study was conducted where face-to-face in-depth interviews were conducted using a purposive sampling method with patients enrolled in CCPs. In total, 64 participants aged between 41 to 94 years were recruited. A deductive framework was developed using the Picker Patient Experience instrument to guide our analysis. Inductive coding was also conducted which resulted in emergence of new themes.

Results

Our findings highlighted eight key themes of patient experience: i) ensuring care continuity, ii) involvement of family, iii) access to emotional support, vi) ensuring physical comfort, v) coordination of services between providers, vi) providing patient education, vii) importance of respect for patients, and viii) healthcare financing.

Conclusion

Our results demonstrated that patient experience is multi-faceted, and dimensions of patient experience vary according to healthcare settings. As most patient experience frameworks were developed based on a single care setting in western populations, our findings can inform the development of a culturally relevant instrument to measure patient experience of community-based care for a multi-ethnic Asian context.

Evaluating the care provision of a community-based serious-illness care program via chart measures

BACKGROUND

Although quality-of-care domains for home-based primary and palliative programs have been proposed, they have had limited testing in practice. Our aim was to evaluate the care provision in a community-based serious-illness care program, a combined home-based primary and palliative care model.

METHODS

Retrospective chart review of patients in an academic community-based serious-illness care program in central North Carolina from August 2014 to March 2016 (n = 159). Chart review included demographics, health status, and operationalized measures of seven quality-of-care domains: medical assessment, care coordination, safety, quality of life, provider competency, goal attainment, and access.

RESULTS

Patients were mostly women (56%) with an average age of 70 years. Patients were multi-morbid (53% ≥3 comorbidities), functionally impaired (45% had impairment in ≥2 activities of daily living) and 32% had dementia. During the study period, 31% of patients died. Chart review found high rates assessment of functional status (97%), falls (98%), and medication safety (96%). Rates of pain assessment (70%), advance directive discussions (65%), influenza vaccination (59%), and depression assessment (54% of those with a diagnosis of depression) were lower. Cognitive barriers, spiritual needs, and behavioral issues were assessed infrequently (35, 22, 21%, respectively).

CONCLUSION

This study is one of the first to operationalize and examine quality-of-care measures for a community-based serious-illness care program, an emerging model for vulnerable adults. Our operationalization should not constitute validation of these measures and revealed areas for improvement; however, the community-based serious-illness care program performed well in several key quality-of-care domains. Future work is needed to validate these measures.

Palliative Care in a Community-Based Serious-Illness Care Program

Background: Although community-based serious-illness care (CBSC) is an innovative care model, it is unclear to what extent CBSC addresses palliative care needs, particularly for those patients near death. Objectives: To evaluate palliative care services of a CBSC program. Design: Retrospective chart reviews. Setting/Subjects: Patients enrolled in a CBSC program in central North Carolina. Measurement: Descriptive statistics of palliative care needs and services, such as symptom management, psychosocial support, and advance care planning (ACP), for survivors and decedents. Results: Patients were seen in an 18-month time frame (n = 159). Mean enrollment in the program was 261.1 days (standard deviation 180.6). Patients' average age was 70 years, 56% were female, and 33% were black. Patients' most frequent comorbidities were dementia (32%), heart failure (32%), and diabetes (28%). Fifty patients (31%) died during the study period. Clinicians most frequently screened for pain (70%), constipation (57%), and dyspnea (57%). Of those screened positive, clinicians most frequently treated pain (92%), anxiety (84%), and constipation (83%). Among the 54% who screened positive for psychosocial distress, 82% received support. Clinicians screened 22% for spiritual needs; 4% received spiritual care. Among decedents, 66% were enrolled in hospice; 14% died in in-hospital. Decedents were more likely than survivors to have ACP (34% vs. 18%, p = 0.03) and a primary goal of comfort (40% vs. 12%, p < 0.01). Conclusions: A CBSC program provided palliative care services comparable with other home-based palliative care programs. Although the CBSC program does not address all domains of palliative care, it provided most with symptom management, psychosocial support, and ACP.

Comparing Specialty and Primary Palliative Care Interventions: Analysis of a Systematic Review

Background: Investigators have tested interventions delivered by specialty palliative care (SPC) clinicians, or by clinicians without palliative care specialization (primary palliative care, PPC). Objective: To compare the characteristics and outcomes of randomized clinical trials (RCTs) of SPC and PPC interventions. Design: Systematic review secondary analysis. Setting/Subjects: RCTs of palliative care interventions. Measurements: Interventions were classified SPC if delivered by palliative care board-certified or subspecialty trained clinicians, or those with extensive clinical experience; all others were PPC. We abstracted data for each intervention: delivery setting, delivery clinicians, outcomes measured, trial results, and Cochrane's Risk of Bias. We conducted narrative synthesis for quality of life, symptom burden, and survival. Results: Of 43 RCTs, 27 tested SPC and 16 tested PPC interventions. SPC interventions were more comprehensive (4.2 elements of palliative care vs. 3.1 in PPC, p = 0.02). SPC interventions were delivered in inpatient (44%) or outpatient settings (52%) by specialty physicians (44%) and nurses (44%); PPC interventions were delivered in inpatient (38%) and home settings (38%) by nurses (75%). PPC trials were more often of high risk of bias than SPC trials. Improvements were demonstrated on quality of life by SPC and PPC trials and on physical symptoms by SPC trials. Conclusions: Compared to PPC, SPC interventions were more comprehensive, were more often delivered in clinical settings, and demonstrated stronger evidence for improving physical symptoms. In the face of SPC workforce limitations, PPC interventions should be tested in more trials with low risk of bias, and may effectively meet some palliative care needs.