COST-EFFECTIVENESS ANALYSIS IN THE MANAGEMENT OF STROKE

Vol 10, Issue 7, 2017
Online - 2455-3891
Print - 0974-2441
COST-EFFECTIVENESS ANALYSIS IN THE MANAGEMENT OF STROKE
GOPI B1
, SUSHMITHA C1
, NIKITHA KSV1
, MONIKA M1
, RAGHAVENDRA KUMAR GUNDA2
*, SATYANARAYANA V3
,
SURESH KUMAR JN2
1
Department of Pharmacy Practice, Narasaraopeta Institute of Pharmaceutical Sciences, Narasaraopet, Guntur, Andhra Pradesh, India.
2
Department of Pharmaceutics, Narasaraopeta Institute of Pharmaceutical Sciences, Narasaraopeta, Guntur, Andhra Pradesh, India.
3
Department of Pharmacy Practice, Narasaraopeta Institute of Pharmaceutical Sciences, Narasaraopeta, Guntur, Andhra Pradesh, India.
Email: raghav.gunda@gmail.com
Received: 07 March 2017, Revised and Accepted: 13 April 2017
ABSTRACT
Objective: Stroke is one of the leading causes of death and disabilities worldwide. Cost-effectiveness analysis helps identify neglected opportunities
by highlighting interventions that are relatively inexpensive, yet have the potential to reduce the disease burden substantially. In India, there are
wide social and economic disparities. Socioeconomic environment influences occupation, lifestyle, and nutrition of social classes which in turn would
influence the prevalence and profile of stroke. By reduction of delays in access to hospital and improving provision of affordable treatments can
reduce morbidity and mortality in patients with stroke in India. This study is designed to measure and compare the costs (resources consumed) and
consequences (clinical, economic, and humanistic) of pharmaceutical products and services and their impact on individuals, healthcare systems and
society.
Methods: The purpose of this study is to analyze and conduct a cost-effectiveness analysis for the treatment of stroke in Guntur City Hospitals.
The patients were treated either with aspirin or clopidogrel. The health outcomes were measured using Modified Rankin Scale, A prominent risk
assessment scale for stroke. The pharmacoeconomic data were computed from the patient data collection forms.
Result: The incremental cost-effectiveness ratio of aspirin and clopidogrel were calculated to be Rs. 8046.2/year.
Conclusion: The study concludes that aspirin has the increased socioeconomic impact when compared to Clopidogrel and we can see that the earlier
therapy has supported discharge, home-based rehabilitation along with reduced hospital stay and hence preferable.
Keywords: Stroke, Pharmacoeconomics, Cost-effectiveness analysis, Aspirin, Clopidogrel, Incremental cost-effectiveness ratio.
INTRODUCTION
Stroke is one of the leading causes of death and disabilities worldwide. In
developingcountrieslikeAustralia,United Kingdom,Canada,NewZealand,
Korea, and Taiwan, there is a lot of economic impact on the stroke [1-6].
Recently, even in India, a lot of epidemiological data has been published
on stroke [7-9].Annually, about 16 million first-ever strokes occur in the
world, causing a total of 5.7 million deaths [10]. As a consequence, stroke
ranks as the second cause of death in the world population after ischemic
heart disease (the third only if neoplastic diseases are considered as a
group) [11]. About 85% of all stroke deaths are registered in low- and
middle-income countries, which also account for 87% of the total losses
duetostrokeintermsofdisability-adjustedlifeyearscalculatedworldwide,
in 72 million/year [12]. However, many people do not even know the
economic burden the stroke condition gives to a patient. The health-care
system in India is also different from other countries [13]. Even though
Government hospitals are available, the private sector plays a major role in
Healthcare.Healthinsurancecoversonly10%ofpeopleandoldpeopleare
not covered by health insurance policies [14]. The cost of treating a stroke
patient can thus differ from other regions of the world.
Pricing of medicines is a very sensitive issue for a developing country
like India. The pricing causes direct effects on the patients as well as
it determines the treatment compliance and also the availability of
various brands in our country [15]. Pharmacoeconomics is a collection
of descriptive and analytic techniques for evaluating Pharmaceutical
interventions in health care system [16]. Pharmacoeconomics is a
branch of health economics, which particularly focuses on the “costs
and benefits of drug therapy” [17].
Pharmacoeconomic research identifies measures and compares:
• Costs (resources consumed) and
• Consequences(clinical,economic,andhumanistic)ofpharmaceutical
products and services and their impact on individuals, health-care
systems, and society.
Pharmacoeconomics would also result injudicious spending of
resources available for healthcare [18]. Cost-effectiveness analysis is a
method for assessing the gains in health relative to the costs of different
health interventions. It is not the only criterion for deciding how to
allocate resources, but it is an important one because it directly relates
the financial and scientific implications of different interventions.
Cost-effectiveness analysis helps identify neglected opportunities by
highlighting interventions that are relatively inexpensive, yet have
the potential to reduce the disease burden substantially. One of the
advantages of using cost-effectiveness ratios is that they avoid some
ethical dilemmas and analytical difficulties that arise when attempting
cost-benefit analyses [19].
Socioeconomic environment influences occupation, lifestyle, and
nutrition of social classes which in turn would influence the prevalence
andprofileofstroke.Thereareanumberofstudiesonthecosttreatment
in patients with stroke from the developed countries very few from the
developing countries. All expenditure incurred for the direct cost is met
out-of-pocket by the patients. The treatment of stroke is expensive for
a very large proportion of patients in developing countries like India.
Although the amount spent by the upper and the lower income patients
are similar, the percentage of the income spent is higher among the low-
©2017TheAuthors.PublishedbyInnovareAcademicSciencesPvtLtd.ThisisanopenaccessarticleundertheCCBYlicense(http://creativecommons.
org/licenses/by/4. 0/) DOI: http://dx.doi.org/10.22159/ajpcr.2017.v10i7.18318
Research Article

128
Asian J Pharm Clin Res, Vol 10, Issue 7, 2017, 127-130
Gopi et al.
income patients, due to their lower earning. By reduction of delays in
access to hospital and improving provision of affordable treatments can
reduce morbidity and mortality in patients with stroke in India. The era,
in which high-tech care is generally favored, there is little likelihood that
a less complex and cost-effective therapy will emerge as the preferred
choice unless there are data to suggest the same. However, comparative
cost-effectiveness analysis can lead to such insights. Hence, there is a
need to carry out comparative cost-effective studies among patients
receiving these therapies [20].
The aims and objectives of the study include:
• To evaluate the cost of management of stroke, its predictors, and the
impact on social determinants of the family
• Toanalyzeandconductacost-effectivenessanalysisforthetreatment
of stroke in Guntur City Hospitals
• To evaluate the burden of cost in patients with stroke
• Toauditallthepharmacotherapy,qualityoflifeandcost-effectiveness
by comparing different drug combinations.
METHODS
The study was a single-center, non-interventional observational
study conducted over a period of 6 months, i.e. from August 2016 to
January 2017 in the Department of Neurology, Guntur City Hospital,
Kothapet, Guntur, and Andhra Pradesh. The data required for the
study was collected from the patients at Guntur City Hospital,
Guntur. A total of 100 patients from the Neurology Department were
taken in the study. An equal number of patients, i.e., 50 each (n=100)
have been prescribed with aspirin and clopidogrel, respectively. The
health outcomes were measured using Modified Rankin Scale, A
prominent risk assessment scale for stroke. The pharmacoeconomic
data were computed from the patient data collection forms. The
data were statistically analyzed using SPSS (Statistical Package
for Social Sciences) with version 24.0 (SPSS Inc., Bengaluru). All
the continuous variables of normal distribution were presented in
the form of mean with standard deviation. Statistically, the cost-
effectiveness was determined using the formula of incremental
cost-effectiveness ratio (ICER) which is recommended by the World
Health Organization.
The ICER can be estimated by:
ICER
C C
E E
=
−
−
( )
( )
1 0
1 0
Where C1
and E1
are the cost and effect in the intervention group and
where C2
and E2
are the cost and effect in the control care group.
Inclusion criteria
• All adult inpatients of age >55 years admitted to neurology
department
• Patientshavingpastandpresentmedicalconditionofischemicstroke
• Patients with history of ischemic stroke and post-stroke disabilities
• Smokers and alcoholics
• Drug-induced stroke conditions (e. g. Use of oral contraceptives).
Exclusion criteria
• Pregnant women
• Patients with hemorrhagic stroke
• Patients age below 55 years.
RESULTS AND DISCUSSION
Health economics enacted the foundation for the branch of
pharmacoeconomics for collating different health-care interventions,
especially pharmaceuticals and generating meaningful cost-effective
solutions for disease management. Policymakers increasingly use cost-
effectiveness analyses to inform decision-making on competing health-
care interventions.
stroke is an important setting, which was a panic for economic
evaluations because of the wide range of issues involved for the
individual and society. It is one of the most expensive diseases as far
as treatment is perturbed, as it generates higher health-care expenses
than those produced by other disease. The present study enumerates
to the current movement toward the extensive considerations in cost-
effectiveness analyses. The choice of aspirin over clopidogrel-yielded
increased health benefits at a minimized cost. The efficacy significantly
affects the total costs of the disease. We studied the cost (direct medical,
nonmedical, and indirect) and socioeconomic impact of stroke in
Guntur, India.
Domains related to physical, mental, emotional, and social functioning
are included under a multidimensional concept called health-related
quality of life. It goes beyond direct measures of population health,
life expectancy, and causes of death, and focuses on the impact health
status has on quality of life. Valuing health-related quality of life is not
straightforward, and the use of QALYs requires caution. In the present
article, we decided to base all QALY values on Modified Rankin Scale.
Modified Rankin Scale is the most used tool for which we could find
published values on all events and health states for input into our
model.
In our study, the age group analysis shows that out of 100 patients, the
age between 55 and 65 years of age having more number of patients,
i.e., 74 (74%) stroke patients and 20 (20%) patients were from the age
group of 66 to 75 years, and finally, 6 (6%) patients were from the age
group of 76 to 85 years of age. Age group of 55-65-year-old patients was
mostly affected by stroke (Fig. 1).
Gender-wise distribution shows that out of 100 stroke patients’ males
were found to be 67 (67%) and females were 33 (33%) (Fig. 2). This
shows that the males are highly affected by stroke.
Fig. 1: Age-wise distribution of stroke patients (n=100)
Fig. 2: Gender-wise distribution of stroke patients (n=100)

129
Gopi et al.
When evaluated for the risk factors of stroke majorly for the smoking
status the analysis showed that out of 100 patients, 62 (62%) were
smokers and 38 (38%) were non-smokers (Fig. 3). This reveals that
Smokers are at a higher risk for the occurrence of stroke.
When evaluated for the alcohol consumption status, the analysis
showed that out of 100 patients, 89 (89%) were alcoholics, whereas
11 (11%) were non-alcoholics (Fig. 4). This proves the fact that alcohol
consumption causes higher blood pressure, thereby increasing the risk
of stroke.
Comorbidities such as hypertension and diabetes mellitus have been
shown to increase the risk of stroke. In our study, out of 100 patients,
39 (39%) patients have hypertension, 5 (5%) patients have diabetes
mellitus, 32 (32%) patients have both hypertension and diabetes
mellitus, and 24 (24%) patients have no recorded comorbidities
(Fig. 5). Most of the patients either have hypertension or a treacherous
combination of hypertension and diabetes mellitus.
The evaluation of quality of life of all the stroke patients receiving
either the aspirin or the clopidogrel therapy shows that the sum of
Modified Rankin Scale scores in aspirin is 95 and the sum of Modified
Rankin Scale scores in clopidogrel is 115 (Fig. 6). The low Modified
Rankin Scale score in aspirin denotes the increased quality of life
in the patients receiving Aspirin. The high-Modified Rankin Scale
in clopidogrel indicates the decreased quality of Life in the patients
receiving clopidogrel. Compared to clopidogrel, aspirin shows good
health-related outcomes.
Based on Table 1, the students paired t-test was used to compare the
cost difference between aspirin and clopidogrel. From the students
paired t-test, we concluded that aspirin is more cost-effective than
clopidogrel.
ICER=Rs. 8046.2
The ICER can be calculated by dividing the difference in costs of
control group and intervention groups with the difference in the
effects caused by the control group and the interventional group. The
total costs of the control group, i.e., patients’ prescribed with aspirin
are evaluated to be Rs. 388219. The total costs of the interventional
group i.e., patients prescribed with Clopidogrel are evaluated to be Rs.
549143. The sum of Modified Rankin Scale scores of the control group
is found to be 95 whereas the sum of Modified Rankin Scale scores of
the interventional group is found to be 115. The ICER was calculated to
be Rs. 8046.2 (Table 2). Low ICER than the threshold determines the
cost-effectiveness of the drug therapy.
This analysis shows that Aspirin is more cost-effective than Clopidogrel
in the treatment of stroke also offering a favorable adverse effect profile
and quality of life in comparison to the latter. Stroke, given its chronicity
and associated morbidity and mortality, constitutes a significant disease
burden to the society, both in terms of the health-related repercussions
as well as financial costs incurred due to morbidity and cumulative cost
of drug therapy. Hence, it is important to administer drugs that are cost-
effective and have minimal side effects. This is particularly important
in a developing country like India, where the accretive cost of the long-
term therapy is often a significant deterrent to patient compliance.
The results of this study contribute toward decision-making involved
in formulary management and by clinicians treating the patients with
stroke.
CONCLUSION
The study concludes that the pharmacoeconomic evaluation of stoke
is essential to obtain optimal therapy at lowest price and which
medication helps the poor and middle-class patients to give appropriate
health-care service. The cost driving factors in case of aspirin were
found to be manageable income, better outcomes, and reduced length
Fig. 3: Details on smoking status (n=100)
Fig. 4: Details on alcohol consumption status (n=100)
Fig. 5: Details on comorbidities/associated conditions that led to
stroke
Fig. 6: Quality of life evaluation of stroke patients on aspirin/
clopidogrel therapy

130
Gopi et al.
of hospital stay. In contrast, the clopidogrel cost-driving factors were
higher income, poor outcomes, and increased length of hospital stay.
Aspirin has the increased socioeconomic impact when compared to
clopidogrel, and we can see that the earlier therapy has supported
discharge, home-based rehabilitation along with reduced hospital stay.
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Table 2: Calculation of ICER
Drug therapy Total costs (INR) Total effects
Aspirin 388219 95
Clopidogrel 549143 115
ICER: Incremental cost‑effectiveness ratio
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Table 1: Summary of distribution of cost analysis of stroke patients
Cost analysis of aspirin (A) and clopidogrel (C) Minimum Maximum Mean SD
A C A C A C A C
Total medicine cost 1 45 16 265 5.36 87.72 3.31 39.69
Laboratory findings cost 3500 3500 7100 9000 4340 5269.5 859.1 1616.27
Hospital costs 1400 2100 9100 14000 3284 4648 1591.47 2018.71
Direct costs 4953 5650 12962 18880 7593.36 10005.6 1850.19 2688.67
Physiotherapy costs 300 600 600 1200 454.54 856 102.59 220
FPC costs 200 200 300 600 244 376 35.91 164.82
Indirect costs 200 200 850 1800 543 804 232.99 541.33
Total costs 5153 6250 13162 19480 7764.38 10982.8 1769.20 2663.23
p value is calculated as 0.01 and is significant, SD: Standard deviation, FPC: Further physician consultations

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