Nurse practitioner and physician adherence to standing orders criteria for consultation or referral.

The degree to which nurse-practitioners (NPs) and physicians (MDs) follow the mutually agreed-upon rules for their practice and the effects of any deviations are unknown. This study assessed whether NPs adhered to consultation/referral (C/R) criteria in NP standing orders for hypertension, whether MDs adhered to the task-delegation intent expressed in standing orders, and the relationship between adherence and blood-pressure (BP) control. A sample of 161 patients from a practice of five MDs and four NPs in a rural primary care clinic was studied over 16 months. Patient characteristics associated with provider non-adherence were identified by discriminant analysis. NPs failed to obtain consultation or referral for 22 of 66 patients (33 per cent) with conditions requiring C/R. MDs retained 17 of the 43 patients (40 per cent) without C/R conditions. NP non-adherence was associated with care by a single NP, presence of few non-hypertension problems, and need for dietary alteration (p less than .05). MD non-adherence was associated with males and presence of severe non-hypertensive disease (p less than .005). Diastolic BP control (less than or equal to 90 mm Hg) was similar in NP patient groups without C/R conditions, retained by NPs despite C/R conditions and shared with MDs by C/R. Control in the shared group was better than in the MD-treated group with C/R conditions (p less than .025). Although in this setting NPs frequently did not adhere to C/R criteria for hypertension, this did not affect acceptable BP control.     

Use of midlevel practitioners to achieve labor cost savings in the primary care practice of an MCO

OBJECTIVE: To estimate the savings in labor costs per primary care visit that might be realized from increased use of physician assistants (PAs) and nurse practitioners (NPs) in the primary care practices of a managed care organization (MCO). STUDY SETTING/DATA SOURCES: Twenty-six capitated primary care practices of a group model MCO. Data on approximately two million visits provided by 206 practitioners were extracted from computerized visit records for 1997-2000. Computerized payroll ledgers were the source of annual labor costs per practice from 1997-2000. STUDY DESIGN: Likelihood of a visit attended by a PA/NP versus MD was modeled using logistic regression, with practice fixed effects, by department (adult medicine, pediatrics) and year. Parameter estimates and practice fixed effects from these regressions were used to predict the proportion of PA/NP visits per practice per year given a standard case mix. Least squares regressions, with practice fixed effects, were used to estimate the association of this standardized predicted proportion of PA/NP visits with average annual practitioner and total labor costs per visit, controlling for other practice characteristics. RESULTS: On average, PAs/NPs attended one in three adult medicine visits and one in five pediatric medicine visits. Likelihood of a PA/NP visit was significantly higher than average among patients presenting with minor acute illness (e.g., acute pharyngitis). In adult medicine, likelihood of a PA/NP visit was lower than average among older patients. Practitioner labor costs per visit and total labor costs per visit were lower (p<.01 and p=.08, respectively) among practices with greater use of PAs/NPs, standardized for case mix. CONCLUSIONS: Primary care practices that used more PAs/NPs in care delivery realized lower practitioner labor costs per visit than practices that used less. Future research should investigate the cost savings and cost-effectiveness potential of delivery designs that change staffing mix and division of labor among clinical disciplines.     

Nurse practitioners in primary care

OBJECTIVES: Recent policy emphasizing the role of primary care has increased the workload of general practitioners (GPs) while simultaneously placing nurse practitioners (NPs) as key providers in the delivery of health care. There is need to examine the latter's work practices. The purpose of this article is to explore the role and practice of NPs in general practice. METHODS: DESIGN: Thirty-six semi-structured interviews with GPs, NPs, receptionists and patients were analysed. SETTING: Four general practices in south-east England. MAIN OUTCOME MEASURES: Data from semi-structured interviews relating to allocation, prescribing and referral practices of NPs in primary care. RESULTS: These include the differences in presenting problems of patients seen by GPs and NPs, prescribing and referral practice and legal issues of the nurse practitioner. A wide range of practice is reported. CONCLUSION: This study highlights the variation in how patients are allocated for NP consultation and in NP autonomy, prescribing and referral, which raises issues for clinical governance of protocols and risk management.     

Primary care physician perceptions of the nurse practitioner in the 1990s.

OBJECTIVE: To evaluate factors associated with primary care physician attitudes toward nurse practitioners (NPs) providing primary care. DESIGN: A mailed survey of primary care physicians in Iowa. SETTING AND PARTICIPANTS: Half (N = 616) of the non-institutional-based, full-time, primary care physicians in Iowa in spring 1994. Although 360 (58.4%) responded, only physicians with complete data on all items in the model were used in these analyses (n = 259 [42.0%]). MAIN OUTCOME MEASURES: There were 2 principal dependent measures: physician attitudes toward NPs providing primary care (an 11-item instrument) and physician experience with NPs in this role. Bivariate relationships between physician demographic and practice characteristics were evaluated by chi 2 tests, as were both dependent variables. Ordinary least-squares regression was used to determine factors related to physician attitudes toward NPs. RESULTS: In bivariate analyses, physicians were significantly more likely to have had experience with an NP providing primary care if they were in pediatrics or obstetrics-gynecology (78.3% and 70.0%, respectively; P < .001), had been in practice for fewer than 20 years (P = .045), or were in practices with 5 or more physicians. The ordinary least-squares regression indicated that physicians with previous experience working with NPs providing primary care (P = .01), physicians practicing in urban areas with populations greater than 20,000 but far from a metropolitan area (P = .03), and general practice physicians (P = .04) had significantly more favorable attitudes toward NPs than did other primary care physicians. CONCLUSIONS: The association between previous experience with a primary care NP and a more positive attitude toward NPs has important implications for the training of primary care physicians, particularly in community-based, multidisciplinary settings.     

Perceived Barriers to Nurse Practitioner Practice in Rural Settings

CONTEXT: Rural residents experience the same incidence of acute illness as urban populations and have higher levels of chronic illness. Overall, access to adequate rural health care is limited. Nurse practitioners (NPs) have been identified as safe, cost-effective providers in meeting these challenges in rural settings. PURPOSE: This replication study was conducted to examine NP perceptions of barriers to rural practice in Minnesota. Findings were compared to earlier studies to examine issues that have persisted over time. METHODS: A Barriers to Practice checklist was mailed to NPs from the database of the Board of Nursing of a midwestern state. Rural NPs (n = 191) identified and described barriers to practice and rated the overall restrictiveness of their practice. FINDINGS: Barriers to practice were perceived to be prevalent. Persisting barriers continued to stand in the way of full utilization of NP roles. Lack of understanding of NP roles on the part of the public and other health professionals has been particularly problematic over time. Key issues in 2001 were low salaries, lack of adequate office space, and a limited peer network. Perceived restrictiveness of the practice climate, gauged as somewhat restrictive, remained unchanged between 1996 and 2001. CONCLUSIONS: NPs have an excellent history of meeting rural primary health care needs. Enhancing the NP work environment could prove instrumental to retaining these professionals in the work force and thereby contribute to improved access and quality of care in underserved rural communities.     

Context of care or provider training: the impact on preventive screening practices

BACKGROUND: While MD adherence to U.S. Preventive Services Task Force guidelines has been found to be uneven, nurse practitioners (NPs) and their adherence to guidelines have not been closely examined. METHODS: A retrospective chart review of new patients (n = 1339) in an NP primary health care center, four MD primary health care centers, and one private NP practice. Screening and counseling were compared for NPs and MDs. RESULTS: When patient populations, resources, and administrative policies were similar in the NP and MD primary health care centers, NPs were more likely than MDs to perform primary prevention; however, MDs were more likely to document the delivery of secondary prevention screening. Private practice NPs' performance was more congruent with practice guidelines than either NP or MD primary health care center providers. Private practice NPs were more likely to perform screening, assessment, and counseling. CONCLUSIONS: When context, patient population, and productivity requirements were the same, NPs and MDs differed in their use of preventive measures, and not as expected. When NPs are not constrained by productivity requirements, and when their patient population has more resources and higher expectations, NPs perform better than their primary care center counterparts, particularly in secondary prevention and assessment and counseling.     

The contribution of nurse practitioners and physician assistants to generalist care in Washington State

OBJECTIVE: To quantify the total contribution to generalist care made by nurse practitioners (NPs) and physician assistants (PAs) in Washington State. DATA SOURCES: State professional licensure renewal survey data from 1998-1999. STUDY DESIGN: Cross-sectional. Data on medical specialty, place of practice, and outpatient visits performed were used to estimate productivity of generalist physicians, NPs, and PAs. Provider head counts were adjusted for missing specialty and productivity data and converted into family physician full-time equivalents (FTEs) to facilitate estimation of total contribution to generalist care made by each provider type. PRINCIPAL FINDINGS: Nurse practitioners and physician assistants make up 23.4 percent of the generalist provider population and provide 21.0 percent of the generalist outpatient visits in Washington State. The NP/PA contribution to generalist care is higher in rural areas (24.7 percent of total visits compared to 20.1 percent in urban areas). The PAs and NPs provide 50.3 percent of generalist visits provided by women in rural areas, 36.5 percent in urban areas. When productivity data were converted into family physician FTEs, the productivity adjustments were large. A total of 4,189 generalist physicians produced only 2,760 family physician FTEs (1 FTE = 105 outpatient visits per week). The NP and PA productivity adjustments were also quite large. CONCLUSIONS: Accurate estimates of available generalist care must take into account the contributions of NPs and PAs. Additionally, simple head counts of licensed providers are likely to result in substantial overestimates of available care. Actual productivity data or empirically derived adjustment factors must be used for accurate estimation of provider shortages.     

Towards better practice management: a national survey of Scottish general practice management

Surveys a 50 per cent sample of Scottish practices (stratified by health board area), concerning whether they had a practice manager and who had responsibility for practice management tasks. The overall response rate was 73 per cent, with 63 per cent of responding practices employed a practice manager. Reports the findings from practices employing a manager, and reveals marked variations in levels of managers pay and responsibility. The development of practice management structures varied with only 85 per cent of practices holding regular practice management meetings. The results suggest that practices which previously coped without a manager have recognized the need for one as the complexity of practice administration increases and that the traditional career path of managers involving internal promotion is changing.     

Utilization of nurse practitioners in long-term care: findings and implications of a national survey

OBJECTIVES: The objective of this study was to determine the national practice patterns of nurse practitioners (NPs) providing care in long-term care (LTC) facilities, including the number and characteristics of LTC facilities that use NPs for any portion of care to residents, NP activities, and employment arrangements between NPs, physicians, and facilities. DESIGN: Mailed survey. PARTICIPANTS: Participants included all physicians who are members of the American Medical Directors Association (AMDA). MEASUREMENT: The survey instrument was constructed to obtain information in the following six domains: (1) the number of LTC facilities that have NPs involved in providing care; (2) the number of NPs engaged in care at these facilities; (3) the types of employment/financial arrangements between NPs and LTC facilities; (4) the types of services provided by the NPs; (5) the effectiveness of the NPs as perceived by the medical directors; and (6) the perceived future demand for NPs in LTC. RESULTS: Of a total of 870 respondents (response rate 19%), 546 respondents (63%) reported the involvement of NPs in the care of residents in their facilities. In total, respondents identified 1160 NPs involved in care, with a median of two NPs per responding facility (range, 1-10). Respondents reported that NPs make sick/urgent resident visits (96%), provide preventive care to long-stay residents (88%), and perform alternating required regulatory 30/60 (88%), hospice care (80%), and wound care (78%). Significant variations in practice patterns were found between NPs employed by a LTC facility (19% of respondents) as compared with those NPs employed in other arrangements. Large majorities of medical directors stated that NPs are particularly effective in maintaining physician satisfaction (90%), resident satisfaction (87%), and family satisfaction (85%). An additional 34% of the respondents projected an increased need for NPs in nursing homes in the future. CONCLUSION: NPs involved in LTC are more likely to be involved in the care of residents in the nation's larger (>100-bed) LTC facilities. The substantial number and types of services provided by these NPs, coupled with the high resident, family, and physician satisfaction with their services, suggests the need for educational, policy, and reimbursement strategies to encourage the further involvement of NPs in the care of residents in nursing homes.     

Financial and organizational factors affecting the employment of nurse practitioners and physician assistants in medical group practices

This study examines the financial and organizational factors that are associated with the employment of nurse practitioners (NPs) and physician assistants (PAs) in medical group practices. The source of the data is a survey of 128 medical group practices in Minnesota. The findings suggest that the employment of NPs and PAs and their ratios to primary care physicians (PCPs) in practices that employ them are influenced by the organizational characteristics of the group practice but not by the degree of financial risk sharing for patient care. Although neither the number of years of experience in financial risk sharing nor more revenue from capitation payment contracts were related to employment of these midlevel practitioners (MLPs), large practices, those located in rural locations, not-for-profit practices, and those that scored low on cohesive cultural traits were more likely to employ MLPs. The data provide insights into the market for MLPs and the potential for these clinicians in the future health care system. As medical group practices become larger and have more organizational capacity, they can likely be expected to increase the employment of MLPs and integrate them into their organizations.     

Heatlh care in the People's Republic of China: a view from inside the system.

During a three-month period, all admissions to an infectious disease ward at a tertiary care hospital in the People's Republic of China were studied. The hospital's catchment area covered a population of almost eight million, 10 per cent urban and 90 per cent rural. Seventy-two per cent of the patients admitted to this facility were city dwellers with illnesses which were significantly less serious in degree than the illnesses encountered among patients transferred from rural facilities. Ease of travel, nature of the disease process, availability of beds, ability to manipulate the referral ladder, and cost of health care may account for these results. Charges for health care in China proved very expensive relative to per capita income. This may be of major consequence to rural persons who are personally liable for some portion of this cost. These results suggest that although referral to tertiary care in China occurs more commonly among rural patients than is the case in other developing nations, access to this care and its cost are significant problems of the present system. During the drive for modernization, a multifactorial approach (including health policy, administrative controls, and patient and physician education) will be essential to avoid deterioration of the rural health system, and the increase financial burden to be expected with the introduction of advanced medical technology.     

Location decisions of National Health Service Corps physicians

Results of a survey of 100 National Health Service Corps (NHSC) physicians in 10 east coast states (94 per cent response rate) indicate that 56 have plans to locate in a rural area after their service obligation is complete and 15 have not yet decided. Those who decide for a rural practice value personal and community factors to a higher degree than professional factors and are more likely to have a primary care practice.     

Primary care teams work harder in deprived areas

BACKGROUND: The NHS Plan promises an equitable distribution of resources within primary care. To inform the debate on the extent to which resources should be redistributed we examined the association between primary care activity and deprivation. We used the natural experiment of the organization of primary care in Mansfield, Nottinghamshire, where town centre general practices have patients from electoral wards with a range of socio-economic characteristics who are subject to the same degree of supplier-induced demand and variations in data quality. METHODS: We used one year's prospective data for two practices with 20,106 patients from 15 electoral wards. We performed linear regression analysis of directly age-standardized rates for different types of primary care activity and primary care morbidity-specific contacts against Townsend and Index of Multiple Deprivation 2000 scores. RESULTS: There were 44 per cent more out-of-hours contacts in more deprived areas (95 per cent confidence interval (CI) 17-70 per cent), 18 per cent more surgery consultations (95 per cent CI 8-27 per cent), and 28 per cent more same-day consultations (95 per cent CI 12-44 per cent). Routine visits by doctors and contacts by district and practice nurses did not have substantial associations with deprivation. Morbidity-specific contacts for psychological problems and respiratory problems were associated with deprivation but there was no significant association for contacts for low back pain, asthma or menopausal problems. CONCLUSIONS: Different types of primary care activity and contacts for different morbidities had different associations with deprivation. This makes it difficult to recommend a simple list size adjustment; however, increased activity in deprived wards needs to be recognized in resource allocation, service configuration and performance management in primary care.     

Autonomous ambulatory care by nurse practitioners and physician assistants in office-based settings

Data from the 1997 National Ambulatory Medical Care Survey were used to examine the autonomous provision of ambulatory medical care by nurse practitioners (NPs) and physician assistants (PAs) in physician-managed office-based settings. An estimated 6.81 million office visits involved autonomous care by NPs and PAs, for an overall rate of 2.55 visits per 100 persons. The visit rates were greatest for patients over 64 years of age, females, blacks, and patients from the Northeast. The visits encompassed a broad range of acute and chronic problems, with a greater proportion of non-illness care visits when compared with visits to physicians. While NPs and PAs provided diagnostic services and pharmacotherapy, there was more emphasis on therapeutic or preventive services in their practices than among physicians' practices. Predisposing, enabling, and need factors were differentially associated with visits to NPs and PAs. Utilization of NPs and PAs as autonomous providers in office-based settings appears limited. Public policy and educational initiatives can focus on predisposing, enabling, and need factors to increase access to autonomous practice of NPs and PAs in ambulatory care.     

Growth and change in the physician assistant workforce in the United States, 1967-2000

The physician assistant (PA) profession grew rapidly in the 1970s and 1990s. As acceptance of PAs in the health care system increased, roles for PAs in specialty care took shape and the scope of PA practice became more clearly defined. This report describes key elements of change in the demography and distribution of the PA population between 1967 and 2000, as well as the spread of PA training programs. Individual-level data from the American Academy of Physician Assistants, supplemented with county-level aggregate data from the Area Resource File, were used to describe the emergence of the PA profession between 1967 and 2000. Data on 49,641 PAs who had completed training by 2000 were analyzed. More than half (52.4%) of PAs active in 2000 were women. PA participation in the rural workforce remains high, with more than 18% of PAs practicing in rural settings, compared with about 20% in 1980. Primary care participation appears to have stabilized at about 47% among active PAs for whom specialty is known. By 2000, 51.5% of practicing PAs had been trained in the states where they worked. The profession has grown rapidly; 56% of all PAs were trained between 1991 and 2000. In 2000, more than 42% of accredited PA programs offered a master's degree, compared to master's degree programs in 1986. Although many critical issues of scope of practice and patient and physician acceptance of PAs have been resolved, the PA profession remains young and continues to evolve. Whether the historical contribution of PAs to primary care for rural and underserved populations can be sustained in the face of increasing specialization and higher-level academic credentialing is not clear.     

Role disagreement in primary care practice

To measure the extent of disagreement on roles between nurse practitioners (NPs) and physicians working together and to look for characteristics of joint practices that are associated with disagreement, patient vignettes were sent to 15 NP/M.D. dyads, and both M.D.s and NPs were asked how appropriate it would be for them and for their co-practitioner to provide care for the problem presented in each vignette. Measures of disagreement on patient care roles were developed by comparing responses within the dyad. For all practices, there was moderate agreement on roles, and this agreement seemed to favor a complementary practice. Disagreement on the NP's role was most often in the direction of NP feeling capable of providing more care than the M.D. felt she could provide. Various factors, such as job satisfaction, age differences between providers, and training level of the NP, were associated with the disagreement that was found. Some disagreement on roles exists between NPs and M.D.s practicing together. Resolution of these differences may lead to greater job satisfaction and more effective interaction between providers.The authors are with the University of North Carolina, Chapel Hill where Dr. Davidson is an Assistant Professor of Medicine in the Division of General Medicine and Clinical Epidemiology, Dr. Earp is an Assistant Professor of Health Education in the School of Public Health and Dr. Fletcher is Co-Chief of the Division of General Medicine, Associate Professor of Medicine and Clinical Epidemiology, and Director of the Robert Wood Johnson Clinical Scholars Program. Reprints may be obtained from Richard Alan Davidson, M.D., M.P.H., Department of Medicine, 3041 Old Clinic Building, University of North Carolina, Chapel Hill, North Carolina 27514. This work was presented at the American Federation for Clinical Research Meetings, May, 1980. This project was supported in part by the Robert Wood Johnson Clinical Scholars Program. The authors would like to acknowledge the assistance of David McKay in the planning of this study.     

Hospital-sponsored primary care: I. Organizational and financial effects

Findings are presented from a seven-year (1976-83) evaluation of the Community Hospital Program (CHP), a national demonstration program sponsored by the Robert Wood Johnson Foundation to assist 54 community hospitals in improving the organization of access to primary care. Upon grant expiration, 66 per cent of hospital-sponsored group practices continued under some form of hospital sponsorship; over 90 per cent developed or were planning to develop spin-off programs; and new physicians were recruited and retained in the community. About 9 per cent of hospital admissions were accounted for by group physicians and grantee hospitals experienced a greater annual increase in their market share of admissions than competing hospitals in the area. While only three of the groups generated sufficient revenue to cover expenses during the grant period, 21 additional groups broke even during the first post-grant year. Productivity and cost per visit compared favorably with most other forms of care. Hospitalization rates from the hospital-sponsored practices were somewhat lower than those for other forms of care. Medical director leadership and involvement and the organization design of the practice were among several key factors associated with higher performing practices. The ability of such joint hospital-physician ventures to meet the needs of the poor and elderly in a time of Medicare and Medicaid cutbacks is discussed along with suggestions for targeting future initiatives in primary care.     

Comparing nurse-practitioners and physicians: a stimulation study on processes of care

The question "where is the 'nurse' in the nurse-practitioner" is addressed by comparing processes of care employed by nurse-practitioners (NP) and physicians (MD) in the overall management of commonly occurring problems in primary care practice. Subjects in a nonrandom sample of 15 NPs and 11 MDs independently described their proposed management of two pediatric and two adult hypothetical cases. NP and MD responses were compared to identify differences in the inclusion of explicit process criteria items in the following categories: problem assessment, diagnostic plan, therapeutic plan, health education, follow-up. The differences between NPs and MDs were almost entirely in the NPs' more frequent inclusion of expressive "caring" functions which have traditionally been the focus of nursing practice. The extent to which "care" as well as "cure" process variables affect outcome measures is discussed with regard to testing the effectiveness of the "care" component of health services, regardless of the professional identity of the provider.