evaluation on the development of an emergency medical ... community health nursing model, namely,...
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Journal of Public Health, September-December 2007 Vol. 37 No. 3
Evaluation on the Development of an EmergencyMedical Service System in Nakhon Ratchasima
Province, Fiscal Year 2002-2005
Warunyu Sattayawongthip * Chirapa Popattanachai *Sutat Tolang * Sirisak Prachsripum *
ABSTRACT
Nakhon Ratchasima Province is a transportation hub of the northeast region, and has a high
death rate from traffic accidents with approximately 30 deaths per 100,000 population. The major
problems for the emergency medical care service (EMS) system in the initial period were inadequate
emergency medical supplies, inadequate communication technology systems, improper first aid skills,
lack of emergency medical care teams, and an improper referral system. The present study aimed
to evaluate the EMS system developed under the “Quick & Run” policy (meet the incident alarm)
in order to further their development and improvement. Samples were taken from 350 officers in
the EMS call center and collaboration center, and from 300 EMS clients. The instruments used for
data collection were questionnaires that were quality tested with the reliable alpha coefficient value
at 0.89, 0.94. The guidelines included focus group discussion and secondary data. The statistics used
for the analyzing were percentage and means. Results revealed 81.24% (for the Basic Life Support
unit) and 98.02% (for the Advance Life Support unit), of “on site” EMS improvement with proper
skills and technique. The death rate decreased from 27.68 in 2004 to 22.92 per 100,000 pop in 2005.
High satisfaction with the EMS system in the officers’ and client samples accounted for 67.71% and
81.33%, respectively. Therefore, it is necessary for policy makers to make a comprehensive job
description of the EMS system. In addition, developing an appropriate collaboration network and
making communication technology available for 24 hours are also important.
Key words: Emergency Medical Service System (EMS), evaluation research, CIPP model,
Nakhon Ratchasima Province
Correspondence: Captain Dr. Warunyu Sattayawongthip, 255 Moo 11, Tambon Kokkruat, Nakhon Ratchasima 30280, Thailand
* Nakhon Ratchasima Provincial Public Health Offices
J Public Health 2007; 37(3): 201-215.
Journal of Public Health, September-December 2007 Vol. 37 No. 3
Concept Mapping of Doctoral Dissertation inPublic Health Nursing During the Years 1985-2005
Pimpan Silpasuwan * Chukiat Viwatwongkasem †
Siriluk Phuangkaew *
ABSTRACT
Few dissertation reports have been fully utilized in Public Health Nursing because of the
lack of content mapping, to help create a comprehensible body of existing knowledge. The main
purpose of the present study was to explore and classify a profile of doctoral dissertations completed
in Faculty of Public Health, specialty area of Public Health Nursing, at Mahidol University, Bangkok,
Thailand, in terms of research issues, designs and area and boundaries of nursing roles and functions.
The population and sample was twenty-four dissertation reports that were presented from 1985 to
2005. Data were collected by using sorting record cards. The data were analyzed using concept
mapping, meta analysis, and integrative review. Results showed that dissertations were conducted to
cover factors relevant to public health nursing roles and functions, health promotion, disease
prevention, primary care and rehabilitation. The investigations focused on individual, family and
community levels. Research designs focusing on a quantitative approach were the most frequent
pattern of investigation. Qualitative research and mixed approach were used only in a few reports.
As for meta analysis, it was found that 2 research projects had qualification to meet the required
criteria namely, the model of self-care for patients with hypertensions as the effective model to reduce
risk in hypertension. These findings suggest that content mapping of dissertations of Public Health
Nursing could facilitate and improve the nursing leader’s attention to and utilization of the results
to direct and change the nursing curriculum in order to achieve an increase in the academic excellence
of the nursing paradigm.
Key words: Dissertation, Public Health Nursing, concept mapping, integrative review, meta analysis.
Correspondence: Associate Professor Dr. Pimpan Silpasuwan, Department of Public Health Nursing, Faculty of Public Health,
Mahidol University 420/1 Rajavithi Road, Ratchathewi District, Bangkok 10400, Thailand
* Department of Public Health Nursing, Faculty of Public Health, Mahidol University†
Department of Biostatistics, Faculty of Public Health, Mahidol University
J Public Health 2007; 37(3): 216-227.
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IntroductionScientific integrity and progress of nursing
knowledge are extended both by graduated nurses
practices and relevant research or dissertations.
The exercise of documenting dissertations provides
an opportunity for the nurse or public health nurse
researcher to access these useful documents to
reflect on each study and to guide current work
and future direction of nursing curriculum and
organization.
The advanced Doctor of Public Health
Curriculum, Major in Public Health Nursing
degree, has been in operation since 1985 as the
first doctoral degree program of nursing in
Thailand. The aim of this course focuses on
producing public health nursing leaders in
education, administration research, and health
care services. Measures of success include
graduates making significant contributions that
have a crucial positive impact on Thai’s people
health outcomes as well as the advancement in
academic achievement of the public health nursing
profession.
Although public health nursing curriculum
developers have investigated doctoral students
alumni in order to develop and improve update
curriculum, very little attention has been given
to dissertation innovation and their effect on
development of nursing education or research.
Nursing dissertations are vital components of
nursing education and practices. Nursing educators
have to recognize that the successful dissertation
topic should be established as a vital factor in
the expanding body of knowledge in nursing.
The main purpose of the present study was
to use integrative reviews and concept mapping
to explore and classify a profile of doctoral
dissertations completed in the faculty of Public
Health, specialty area of Public Health Nursing,
at Mahidol University, Bangkok, Thailand, in
terms of research issues, designs and area and
boundaries of nursing roles and functions.
Concept mapping represents a reality, or is a
primarily suggestive device which might stimulate
new ways to look at our past experiences. This
study, therefore aims to analyze and synthesize
the dissertations of doctoral students in the area
of public health nursing using concept mapping,
meta analysis, and integrative reviews were
applied in order to reflect our stand points till the
present time and to guide a direction for achieving
a satisfactory educational and researchable focus
for public health nursing disciplines in the future.
Materials and MethodsDocument researches were designed for
analyzing dissertations using integrative review
and meta analysis. Concept mapping and meta
analysis were employed when the data met the
inclusion criteria of each method.
Population and sample
Twenty-four dissertation projects1-24
were used. They represent the total number of
dissertations published in Public Health Nursing,
Faculty of Public Health, Department of Public
Health Nursing, Mahidol University, Bangkok
in during year 1985-2005.
Data collection and extraction for integrative
reviews
Data-base searches involved using library
catalogues and final reported dissertations.
Structure and keywords for data analysis were
from both conceptual model development and
methodologies and including substantive
characteristics such as type of design, number
of samples, sampling techniques, dependent
variables, independent variables, setting,
218 «“√ “√ “∏“√≥ ÿ¢»“ µ√å
theoretical base and target population. The aims
of the study and information from each study was
identified, coded, and mixed and matched into
pattern. The information was classified and
extraction of these patterns was done manually.
As an example of meta analysis: from the
24 dissertation projects concerning self care of
hypertension. It only two projects focused on
patients with mild-moderate hypertension who
were specifically treated for hypertension in a
health care center. The research design to examine
these two research titles was a quasi-experimental
model using a two group pre- and post-testing.
Data analysis
To classify general characteristics of the
dissertation projects, descriptive statistics such
as percentage, integrative reviews and concept
mapping were used, as well as meta analysis for
the same intervention program of self care of
hypertension in the two different research studies.
Moreover, meta analysis goes beyond
critique and integration and conducts secondary
statistical analysis of the outcomes of similar
studies.25 The outcomes are measured as the mean
difference, between the treatment and control
groups in the 2 studies.
The test statistic quality (Q) is used to
determine whether to use the homogeneity of
mean differences or, equivalently, the fixed effect
against the random effect model (REM). If as
mean difference we accept the Ho and the fixed
effect model is used for homogeneity of di for
the two studied. Under the fixed effect model,
the inverse-variance (INV) and the Cochran-
Mantel-Haenszel (CMH) weights are used to
combine several mean differences from the two
studies into a summary mean difference.
In this study, the result of quality (Q)
showed heterogeneity of mean difference for all
outcomes (knowledge, practice, and behavior);
therefore, the pooling mean differences under the
random effect model was more appropriate than
the inverse-variance and the Cochran-Mantel-
Haenszel methods.
Accounting for study quality: Poor quality
studies may lead to biases in combined study
results. To improve the pooling estimates from
the various mean differences, adjusted weighs by
the quality scores (QS) was used. The quality of
the projects used in this study was scored by two
reviewers.
Results
Integrative review
A total of 24 doctoral dissertations were
retrieved. They consisted of 15 quantitative studies,
7 qualitative studies and 2 mixed research designs
from 1985 to 2005. As for the quantitative research
studies, there are 6 descriptive designs and 6
quasi-experimental design. Qualitative research
and mixed design studies are illustrated in
Diagram 1.
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As shown in Diagram 1, a total number
of 24 dissertation projects were reported from
1987-2005 and most were of quantitative research
design (9 of 24 are quantitative descriptive
research design and 6 of quasi-experimental
design).
Figure 1 illustrates that research issues
covered in the dissertations included nursing
services, administration, education and research.
In nursing services, clustered health promotion,
health risk prevention and primary care concepts
were cared. Some of the studies had applied
nursing theory-based-intervention. Four projects
were guided by three grand nursing theories and
one community health nursing model, namely,
Orem’s self care Theory, Roy’s Adaptation model,
and Watson’s caring model, and the OMAHA
System Frame work.
Diagram 1 Number of Doctoral Dissertations in Public Health Nursing during the years 1987-
2005, classified by research design
220 «“√ “√ “∏“√≥ ÿ¢»“ µ√å
Fig
ure
1C
once
pt m
appi
ng o
f D
octo
ral
Dis
sert
atio
ns i
n P
ublic
Hea
lth N
ursi
ng s
peci
fic f
or r
ole
of n
ursi
ng a
nd f
unct
ion.
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Figure 2 shows that doctoral dissertations
in Public Health Nursing studied health promo-
tion. They can be divided into five clusters, namely
“Capacity Building”, “Healthy Setting”,
“Community Participation”, “Health Promotion
Initiative” and “Leadership development”. Each
cluster used many concepts or variables that had
been studied on various group of the individuals.
Figure 2 Concept mapping of Doctoral Dissertations in Public Health Nursing classified by
health promotion.
222 «“√ “√ “∏“√≥ ÿ¢»“ µ√å
Meta analysis
Meta analysis of the two research projects
with patients with mild-moderate hypertension
associated with a specific behavioral modification
program (k = 2) showed treatment caused their
knowledge, attitude, and practice regarding
hypertension to be changed in positive way.
Results after adjusting for project quality:
Table 1 present the 95% confidence for know-
ledge, practice, and behavior of patients with
mild-moderate hypertension who underwent a
self care intervention program.
Table 1 The effect of a self care intervention program on patients with mild-moderate
hypertension with respect to change in their behavior after adjusting for study quality
Study QSi W’ i -INV W’ i -CMH W’ i -RNM
1 17 124.3601 272.0000 3.7944
2 27 1086.9552 1086.6960 6.1803
The 95% confidence interval for mean differences between treatment and control groups
calculate as = 1.2380 ± 1.96 × 1.5250 = (-1.7510, 4.2270)
Note: Table 2 from 2 research projects.
DiscussionThis study is focused on the current status
of the doctoral dissertations in public health
nursing conducted during the years 1985-2005.
The results have been illustrated in terms of
integrative reviews, meta analysis and concept
mapping. The profiles or concept maps shown in
this paper do not necessarily constitute theories,
because a theory postulates a relationship (usually
causal) between two or more concepts. The concept
mapping has provided a framework within which
a theory might be stated in under the conditions
of each concept.26 This study has looked for
matching patterns of concepts and their relationship
among identical or similar projects in order to
develop new awareness of pattern combinations
emerging as follows.
Themes of dissertations
Public health research in Thailand has
generally been focused on reducing toxicity in the
environment, health surveillance of communicable
disease, self-reliance development of individual
health, family and community, impacts due to
health system research and health promotion in
various Thai subpopulations, especially in out-
reach or vulnerable groups in communities
both in urban and rural areas.27 The published
dissertations have generally also focused on
these areas. The total number of 24 dissertations
studied reflected mainly interesting issues of
public health nursing work within the health
services system and the public health nursing
field. As shown in Figures 1 and 2, dissertations
examining the nursing roles and functions focused
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on health promotion, health risk prevention and
health behavior change in the individual, families,
and at the community level.
Research design
As can be seen in Table 1, there has been
a slow change in research design from quantitative
to qualitative to mixed design in public health
nursing research during the last 20 years. However,
the independent and dependent variables of all
the studies actually overlay and correspond well
with nursing practices for health and illness in
school, family, hospital and wider communities.
With respect to the dissertations, the
quantitative approach has been the most imple-
mented design, consisted of 6 quasi-experimental
and 6 descriptive studies. As for the 7 qualitative
studies, there has been 1 ethnological study, 2
phenomenological study, 2 action research and 2
participatory action research studies. Mixed design
involved using both qualitative and quantitative
approaches or using action research, then
application, in a mixed pattern of qualitative and
quantitative combination.
The origin of conceptual framework
This investigation found that only three
grand nursing theories derived from nursing
theory were applied in the projects as conceptual
framework-Orem’s theory of self-care, Watson’s
caring-suffering, and Roy’s adaptation model.
Other conceptual frameworks had been derived
from community health nursing models, public
health nursing concepts and related principles
theories.
Many health or public issues of P.H.
nursing research are able to be examined using
theory from other disciplines, such as robust public
health policy, health alliance team development
or empowerment process projects,28 and thus,
many styles of conceptual models were addressed
in the dissertations. Some formed theoretical
frameworks by combining or selecting some
related concepts from 2 theories or more. They
often applied a framework of public health
concepts or nursing theories related to the
investigated concepts or variables without
connecting the concepts of the theory’s proposition
and variables in the objectives or hypothesis of
the dissertation in terms of empirical deductive
relationship or the logical deductive relationship
between the concepts or variables (that had been
derived) from the same theory. Moreover, the
operative definition of a variable frequently was
not consistent with the nursing theory’s concept
or with the research instruments that were
designed to measure the variables derived from
the relevant nursing theory. As a consequence
the data missed verifying nursing theory
concepts. This could be a weakness in the
expanding body of knowledge in nursing or
public health nursing, either because of limitation
or lack of verification of the concepts in each
nursing theory or from evidence-base practice in
Thai society.
The research directions of the Public
Health paradigms are centered in several
diversified issues in human health and environment
from the micro to the macro level. The complexity
of public health system must be examined through
a holistic approach focusing on both the well-
being of the total Thai population and their
environment (or impact on) health policy. A few
of the dissertation projects in this study examined
primarily particular health determinants of many
groups of people and their families, and
communities.
Where as meta analysis showed that a
review of 24 dissertations, two projects were
identified as having sufficient research data to
224 «“√ “√ “∏“√≥ ÿ¢»“ µ√å
meet criteria for a meta analysis to be conducted.
The results of meta analysis indicated that a self
care intervention program to reduce risk in
hypertension among mild-moderate patients is
effective at positively changing patient knowledge,
practice, and health behavior.
Weaknesses of the results are (1) there
were a small number of research dissertations
used, and (2) there is no adjustment made for
publication bias of the two studies.
Conclusion and RecommendationThe present study confirmed the concepts
and principle of concept mapping as a tool for
assessing or evaluating public health nursing
dissertations. In this investigation, concept
mapping was used to develop the framework for
constructing schemata of the evolution of public
health nursing dissertation over 20 years. Our study
demonstrated that public health nursing
interventions, using either health promotion or
health risk prevention, are the crucial issues of
investigation.
Concept mapping is generally used in
science and mathematics.29 It is proposed here
that it can be applied to all areas of nursing. This
study has demonstrated that the analysis of the
intricacies of a few published research reports is
meaningful for enlarging and strengthening the
insight offered through the holistic viewing of
dissertation projects for the purpose of guiding
future directions in several disciplines, mainly in
health education research and theory.
We must insure that the concept mapping
in this study provides insight into the challenges
of leading public health nurses in the first
established doctoral program in Thailand in order
that they may become the best practitioners of
health research and development. The directions
and needed themes for future research study of
the program should be conducted so that these
will fill the gap between policy and advance
practice in many areas, especially in health policy
research, as well as expand the body of knowledge
in nursing education, practice and research through
increasing nursing theory application more
concisely and covering the whole model.30
Moreover, research design should be strengthened
through creating an environment which encourages
innovation for both public health nursing education
and administration. In addition, using integrative
review and concept mapping for creating new
schema28 in regard to assessing evaluating multiple
research reports is recommended, in order to
provide a clear vision and guidelines which will
contribute to strengthened research and
development in nursing research and promote the
service of education needs.
AcknowledgementThe authors wished to express our gratitude
to all of the contributors of the dissertation projects
and the Department of Public Health Nursing for
giving us the splendid opportunity to conduct this
research.
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