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Paul Kinnersley a Department of General Practice,
University of Wales College of Medicine, Llanedeyrn Health Centre,
Cardiff CF3 7PN, b Research and Development
Support Unit, Trust Headquarters, Southmead Hospital, Bristol BS10
5NB, c Gloucester
Road Medical Centre, Horfield, Bristol BS7 8SA, d London School of Economics
Health, London WC2A 2AE, e Bristol Cancer Help Centre, Bristol BS8 4PG
Correspondence to: Paul Kinnersley kinnersley{at}cf.ac.uk
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Abstract |
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Objective:
To ascertain any differences between care from nurse practitioners and that from general practitioners for patients seeking "same day" consultations in primary care.
General practices need to provide care for patients who
request "same day" consultations because they are too ill or
otherwise unable to wait for an appointment. The numbers of these
"extra" patients are difficult to predict and
increasing.1 They are normally seen by general
practitioners, although recently nurse practitioners have taken on this
work.2-4 The Royal College of Nursing has developed
training for nurse practitioners, although there is no requirement for
nurses seeing these patients to hold specific qualifications.
Previous studies of nurse practitioners have found high levels of
patient satisfaction, low levels of prescribing, and little need to
refer patients to general practitioners.
4 5
However, these studies were observational and usually involved single
practitioners. Our aim was to investigate whether nurse practitioner
care differs from general practitioner care for patients requesting
same day consultations.
Recruitment of clinicians
Recruitment of patients and randomisation
Design:
Randomised controlled trial with patients allocated by one of two randomisation schemes (by day or within day).
Setting:
10 general practices in south Wales and south west England.
Subjects:
1368 patients requesting same day consultations.
Main outcome measures:
Patient satisfaction,
resolution of symptoms and concerns, care provided (prescriptions,
investigations, referrals, recall, and length of consultation),
information provided to patients, and patients' intentions for seeking
care in the future.
Results:
Generally patients consulting nurse
practitioners were significantly more satisfied with their care,
although for adults this difference was not observed in all practices.
For children, the mean difference between general and nurse
practitioner in percentage satisfaction score was -4.8 (95%
confidence interval -6.8 to -2.8), and for adults the
differences ranged from -8.8 (-13.6 to -3.9) to 3.8 (-3.3 to 10.8) across the practices. Resolution of symptoms and
concerns did not differ between the two groups (odds ratio 1.2 (95%
confidence interval 0.8 to 1.8) for symptoms and 1.03 (0.8 to 1.4) for
concerns). The number of prescriptions issued, investigations ordered,
referrals to secondary care, and reattendances were similar between the
two groups. However, patients managed by nurse practitioners reported
receiving significantly more information about their illnesses and, in
all but one practice, their consultations were significantly longer.
Conclusion:
This study supports the wider acceptance
of the role of nurse practitioners in providing care to patients requesting same day consultations.
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Introduction
Top
Abstract
Introduction
Methods
Results
Discussion
References
![]()
Methods
Top
Abstract
Introduction
Methods
Results
Discussion
References
Nurse practitioners were defined as nurses employed in
general practice who had completed the nurse practitioner diploma
course at either the Royal College of Nursing Institute of
Advanced Nursing, or the department of nursing, midwifery, and health
care, University of Wales. All nurse practitioners who had completed
this training at least one year previously and were working in south
Wales or south west England were contacted by their educational
institutions. Practices that expressed interest were visited. Relevant
local research ethics committees approved the study.
Patients seeking a `same day' consultation were
recruited. Originally we planned to randomise patients to general
practitioner or nurse practitioner care by day of consulting. However,
this strategy was not acceptable to all practices so we offered two
methods of randomisation (by day and within day). and allowed practices
to choose their preferred method.
Outcome measurement and data collection
The primary outcomes were patient satisfaction immediately
after the consultation, resolution of symptoms at two weeks, and
resolution of concerns at two weeks.
6 7
Secondary outcomes included care in the consultation (length of consultation, information provided), resource use (prescriptions, investigations, referrals), follow up consultations, and patients' intentions for
dealing with future similar illnesses.
0.33 (SD 7.18) and the limits of
agreement were -15.28 to 12.62,12 suggesting no
systematic bias between the two methods. The non-completion rate on the
paediatric medical interview satisfaction scale was higher than for the
modified consultation satisfaction questionnaire. We concluded that the modified consultation satisfaction questionnaire was a reasonable measure of satisfaction for children's consultations and used it for
all patients aged 15 or younger.
A second questionnaire was sent to all patients two weeks after their
consultation. Patients were asked to record resolution of symptoms and
their current level of concern on Likert-type scales, whether they had
sought further advice, and how they would deal with future similar
illnesses. A single reminder was sent to non-respondents.
Clinicians completed an encounter sheet for each patient, recording
length of consultation (including, for the nurse practitioners, any
breaks taken); the patient's presenting illness; prescriptions issued;
investigations ordered; referrals to other clinicians; and if the
patient was asked to reattend.
Four weeks after the initial consultations, patients' medical records
were checked for reattendance or hospital admission for the same
problem. The results were recorded on an `audit sheet'.
Statistical methods
Responses to items on the consultation satisfaction questionnaire were scored on a 1-5 scale, where 5=very satisfied and
1=very dissatisfied. Items scores were summed to produce a total unless
data for any component question were missing. Total scores were
converted to percentages for analysis. Patient satisfaction was
analysed separately for adult and child consultations as the modified
consultation satisfaction questionnaire used for children contained one
fewer question.
Sample size calculation
Previous studies found mean satisfaction scores of 76.7%
(SD 11.4) and that 65% of patients reported resolution of symptoms at
two weeks.
7 15
Taking a 5% difference in satisfaction and a 10% difference for resolution of symptoms as being of clinical importance, we calculated that sample sizes of 220 and 900 patients were needed for the two outcomes to give 90% power at a significance level of 5%. An inflation factor of 1.5 was used to account for the
clusters of patients randomised by day, and we expected to achieve a
70% response rate to the postal questionnaire, giving a recruitment
target of 2000 patients to examine both outcomes.
Analyses
Since we used both simple randomisation (within day) and
cluster randomisation (by day), we had to assess the effect of the
cluster randomisation. We calculated intraclass correlations for each
outcome for the practices that used cluster (by day) randomisation
using the proc mixed procedure and glimmix macro within SAS software.
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Results |
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Recruitment of practitioners
Twenty seven nurse practitioners were identified and sent
information. Eighteen expressed interest, seven did not respond, and
two declined. Of the 18, 12 were visited and six declined to take part
after receiving further information. Ten practices finally agreed to
participate (five in south Wales and five near Bristol), with list
sizes ranging from 6000 to 16 300 patients. One nurse worked in two
practices, both of which took part, and one practice had two nurse
practitioners. All were regularly seeing patients requesting same day
appointments. No information was gathered on practices that declined to
take part.
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Randomisation and intraclass correlations
Six practices chose within day randomisation and four chose
cluster randomisation by day. The intraclass correlations could not be
estimated for three secondary outcomes. Of the 14 intraclass
correlations that could be estimated, nine were less than 0.05 and five
were between 0.05 and 0.13. These were considered sufficiently small to
assume statistical independence within a cluster. We therefore combined
data from the two randomisation schemes and conducted analyses at the
individual level.
Patient recruitment
The figure shows the flow of patients through the study;
1757 patients requested same day consultations, and data for 1368 were
analysed. The patients in the two groups were similar in terms of age,
sex, and social class (table 1). In all, 1024 patients (75%) completed
the postal questionnaire at two weeks. Audit data from the medical
records were available for 1222 patients (89%).
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Resolution of symptoms and concerns and patient satisfaction
At two weeks, most patients reported that their symptoms
had improved and their concerns were reduced. There were no notable or
significant differences between the two modes of care (table 3). The
distribution of satisfaction scores was negatively skewed for general
practitioner consultations, but for nurse practitioner consultations
the scores followed a normal distribution. For children, satisfaction
levels were significantly higher for nurse practitioner consultations
compared with general practitioner consultations (table 3). There was a
significant interaction between mode of care and practice for adults.
Significantly higher satisfaction levels for nurse practitioner
consultations were observed in three practices, but no significant
differences were found in the remaining seven (table
4).
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Care provided
There were no notable differences between the groups in
terms of prescriptions issued, investigations ordered, or referrals to
secondary care (table 5). Further details for outcomes where odds
ratios varied significantly between practices are available on the
BMJ 's website. At three of the 10 practices significantly more patients who saw a nurse practitioner were asked to
reattend. However, the percentages of patients who actually reconsulted
were similar.
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Discussion |
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We found that patients who consulted nurse practitioners were generally more satisfied with their care, although the differences were less than the level of clinical importance used in the sample size calculation. The variation in mean satisfaction scores for adults between practices suggests that individual clinicians have a big influence. The nurse practitioner consultations were significantly longer and their patients reported being provided with more information. There were no notable differences for the other outcomes studied.
The imposition of the study procedure changed the working arrangements within the practices. We attempted to minimise this by providing flexibility over the method of randomisation. Practices that are considering introducing nurse practitioner care should offer patients a choice.
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What is already known on this topic
General practices have to provide care to patients who request same day consultations Nurse practitioners have extended their role to managing these patients Care of these patients by nurse practitioners and general practitioners has not been compared in randomised trials What this study addsPatients who consulted nurse practitioners received longer consultations, were given more information, and were generally more satisfied There were no differences for a range of other outcomes, including resolution of symptoms and concerns and prescribing The study supports the extension of the role of nurse practitioners to include seeing patients requesting same day consultations |
We are unaware of other studies comparing the information provided by doctors and nurses. Here most patients reported that their clinician provided information on what to do if symptoms persisted, although lower levels of provision were reported for other important information.16 The nurses' consultations may be longer because they provide more information or because of different time constraints. Longer consultations and those in which more information is provided have been previously associated with greater satisfaction. 17 18
Our sample size was smaller than our target based on the assumption that all patients would be randomised by day. However, only four practices chose randomisation by day, and since we found that clustering could be ignored and the combined dataset analysed at the patient level, our sample size exceeded the estimated 900 needed.
Most patients reported high levels of discomfort and concern before their consultation. The questionnaires seem to be responsive since most patients reported reduced symptoms and concerns at two weeks. This may be due to effective treatments or the self limiting nature of the illnesses. If the illnesses were self limiting, it is unsurprising that we found no differences between the two groups in terms of resolution of symptoms.
Patients requiring same day appointments are a diverse group. A third of patients were either not concerned or a little concerned, raising the question of why they consulted. However, some patients may present with early symptoms of serious conditions. The detection of such cases would be important in judging the overall quality of care, but a different study design would be needed.
Previous observational studies found lower levels of prescribing by nurse practitioners and different patterns of patient morbidity.4 We did not find this. As they were given more information, patients seen by nurse practitioners might be expected to cope more effectively with similar illnesses in future. However, similar, small proportions of each group reported that they would self manage future illnesses. This may reflect the contrary effect of prescribing, which was similar in both groups and validates the patient's decision to seek help.
The demands placed on practices mean that they may explore alternative
methods of management for same day patients. However, the overall use
of resources within the NHS must be considered before widespread
changes are made. Nevertheless, the positive outcomes found here
suggest that nurses provide a high standard of care to their patients,
and this supports their extended role within primary care.
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Acknowledgments |
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We thank the patients, nurses, and doctors who took part in this study. Professors Debbie Sharp, Nigel Stott and Richard Baker provided additional valuable support and advice.
Contributors: JC and AF initiated this study. PT, LA, and AS developed the methods. PK and EA further developed the methods and undertook data collection. CR and KP undertook the analysis. Eileen O'Donnell was responsible for data processing. All authors were involved in the interpretation of the results and writing the report. PK and CR act as guarantors for this study.
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Footnotes |
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Funding: The research was supported by a grant from the Welsh Office of Research and Development for Health and Social Care. CB is supported by a fellowship from the Welsh Office of Research and Development for Health and Social Care. The Research and Development Support Unit at Southmead Hospital is supported by a grant from South West NHS Research and Development Directorate.
Competing interests: None declared.
Two further tables of results are
available on the BMJ's website
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References |
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(Accepted 17 February 2000)