Cross-sectional analysis of US scope of practice laws and employed physician assistants

PA scope of practice reform: History informing the future

ABSTRACT

State-level physician associate/assistant (PA) practice regulations have evolved since the profession's inception. The conditions that influence states' adoption of PA regulatory reforms are not fully understood. As some states begin to adopt components of optimal team practice, PAs in other states continue to face significant legal and regulatory practice restrictions. This article describes state economic, demographic, and workforce characteristics and highlights important differences across states that may affect future reform adoption and shape reform outcomes.

Physicians working with physician assistants and nurse practitioners: perceived effects on clinical practice

Physicians in the United States are increasingly working with physician assistants (PAs) and nurse practitioners (NPs), but little is known about how they perceive working with PAs and NPs affects their clinical practice. We used a new national survey to examine physicians' perceptions of working with PAs and/or NPs on their patient volume, care quality, time use, and workload. Among our analytical sample of 5823 physicians, 59% reported working with PAs and/or NPs. Most reported that PAs and NPs positively affected their clinical practice. Among several findings, physicians working in medical schools and with higher incomes were more likely to indicate that PAs improve their clinical practices in all 4 aspects, while being in specialties with higher women's representation was associated with lower ratings for working with PAs. Native Hawaiian and Pacific Islander physicians and those with higher incomes were more likely to signify that NPs improved their clinical practices in all 4 aspects. These findings provide valuable insights, from the physicians' perspective, on care delivery reform.

Antimicrobial stewardship for nurse practitioners and physician assistants: enhancing patient safety through education

Background

As nurse practitioners and physician assistants (APPs) become more prevalent in delivering pediatric care, their involvement in antimicrobial stewardship efforts increases in importance. This project aimed to create and assess the efficacy of a problem-based learning (PBL) approach to teaching APPs antimicrobial stewardship principles.

Methods

A PBL education initiative was developed after communication with local APP leadership and focus group feedback. It was offered to all APPs associated with Lurie Children's Hospital of Chicago. Participants completed a survey which assessed opinions on antimicrobial stewardship and included knowledge-based questions focused on antimicrobial stewardship. Prescriptions for skin and soft tissue infections associated with APPs were recorded via chart review before and after the education campaign.

Results

Eighty APPs participated in the initial survey and teaching initiative with 44 filling out the 2-week follow-up and 29 filling out the 6-month follow-up. Subjective opinions of antimicrobial stewardship and comfort with basic principles of AS increased from pre-intervention. Correct responses to knowledge-based assessments increased from baseline after 2-week follow-up (p < 0.01) and were maintained at the 6-month follow-up (p = 0.03). Simple skin and soft tissue infection prescriptions for clindamycin went from 44.4% pre-intervention to 26.5% (p = 0.2) post-intervention.

Conclusions

A PBL approach for APP education on antimicrobial stewardship can be effective in increasing knowledge and comfort with principles of antimicrobial stewardship. These changes are maintained in long-term follow-up. Changes in prescribing habits showed a strong trend towards recommended empiric therapy choice. Institutions should develop similar education campaigns for APPs.

Examining the Influence of Physician Assistant/Associate Scope of Practice Reforms and Individual Characteristics on Wages

High labor demand for physician assistants/associates (PA) has led to substantial PA workforce and wage growth. During this growth period, states have adopted reforms to reduce PA scope of practice restrictions and reports of significant gender and race wage disparities have emerged. This study examined data from the American Community Survey to investigate the influence of demographic characteristics, human capital, and scope of practice reforms on PA wages from 2008 to 2017. Using an ordinary least squares two-way fixed effects estimator, a significant association between reforms and PA wages could not be established. Rather, wages were found to be strongly associated with human capital and demographic characteristics. Gender and race wage disparities persist, with female PAs earning 7.5% lower wages than male PAs and White PAs earning 9.1% to 14.5% higher wages than racial and ethnic minority PAs. These findings suggest a minimal influence of prior scope of practice reforms on PA wages.

Associations between state scope of practice laws and US physician assistant wages from 1997 to 2017: a longitudinal analysis

OBJECTIVE

The purpose of this study is to determine whether, and to what degree, variations in physician assistant (PA) state scope of practice (SOP) laws across states are associated with (1) PA median wage over time and (2) if a specific SOP key element has greater impact on PA median wage than others. We hypothesise that expanded SOP laws will be associated with higher PA wage.

DESIGN

Longitudinal analysis from 1997 to 2017.

SETTING

Fifty states and the District of Columbia (US capital region).

PARTICIPANTS

Employed PAs from 1997 to 2017.

METHODS

Four national data sets were combined to allow for longitudinal analysis of state-level annual PA wage and state SOP laws. We used linear regression models to explore the associations of SOP elements with PA wage in 5-year intervals and individual growth models to assess the change in PA annual wage over the study period.

RESULTS

There was a 220% increase in weighted PA annual wage over two decades. There was a positive linear correlation between annual wage and age in 2012 and 2017 (r=0.52, p<0.01; r=0.29, p=0.04, respectively). The adjusted R² for individual SOP elements in the selected years were all small (range: 0.0-0.29), with no appreciable pattern across time for any SOP element. In 1997, several SOP laws show association with median wage but this impact disappears over time.

CONCLUSIONS

PA median wage has risen over twofold in the past two decades, with the rise in PA wage mainly explained by time and provider age. In 1997 some SOP elements were associated with increased average wage; however, the impact of this increase diminished over time in all such instances. As the PA profession moves towards Optimal Team Practice, future research should examine if this move towards greater autonomy impacts wage.