On Sensitivity Analysis in the Analytic Hierarchy Process

Erkut, Erhan; Tarimcilar, M. Murat

doi:10.1093/imaman/3.1.61

Cited by 33 publications

(27 citation statements)

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“…weight ðbenefitsÞ Ã priority ðbenefitsÞ þ weight ðcostsÞ Ã ð-priority ½costsÞ þ weight ðopportunitiesÞ Ã priority ðopportunitiesÞ þ weight ðrisksÞ Ã ð-priority ½risksÞ A sensitivity analysis was performed to evaluate the robustness of the decision accomplished [13].…”

Section: Methodsmentioning

confidence: 99%

Surgical Approaches for Cam Femoroacetabular Impingement: The Use of Multicriteria Decision Analysis

Díaz-Ledezma

Parvızı

2013

Clinical Orthopaedics &Amp; Related Research

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Background Currently, three surgical approaches are available for the treatment of cam femoroacetabular impingement (FAI), namely surgical hip dislocation (SHD), hip arthroscopy (HA), and the miniopen anterior approach of the hip (MO). Although previous systematic reviews have compared these different approaches, an overall assessment of their performance is not available. Questions/purposes We therefore executed a multidimensional structured comparison considering the benefits, opportunities, costs, and risk (BOCR) of the different approaches using multicriteria decision analysis (MCDA). Methods A MCDA using analytic hierarchical process (AHP) was conducted to compare SHD, HA, and MO in terms of BOCR on the basis of available evidence, institutional experience, costs, and our understanding of pathophysiology of FAI. A preclinical decision-making model was created for cam FAI to establish the surgical approach that better accomplishes our objectives regarding the surgical treatment. A total score of an alternative's utility and sensitivity analysis was established using commercially available AHP software. Results The AHP model based on BOCR showed that MO is the best surgical approach for cam FAI (normalized score: 0.38) followed by HA (normalized score: 0.36) and SHD (normalized score: 0.25). The sensitivity analysis showed that HA would turn into the best alternative if the variable risks account for more than 61.8% of the priority during decision-making. In any other decision-making scenario, MO remains as the best alternative. Conclusions Using a recognized method for decisionmaking, this study provides supportive data for the use of MO approach as our preferred surgical approach for cam FAI. The latter is predominantly derived from the lower cost of this approach. Our data may be considered a proxy performance measurement for surgical approaches in cam FAI. Level of Evidence Level II, economic and decision analyses. See the Guidelines for Authors for a complete description of levels of evidence.

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Section: Methodsmentioning

confidence: 99%

Surgical Approaches for Cam Femoroacetabular Impingement: The Use of Multicriteria Decision Analysis

Díaz-Ledezma

Parvızı

2013

Clinical Orthopaedics &Amp; Related Research

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“…Since we assume a uniform distribution of weights within W, we can apply Starr's domain criterion (Starr, 1962;Charnetski and Soland, 1978;Erkut and Tarimcilar, 1991;Eiselt and Laporte, 1992) to determine the probability p(a i c, W) that a i is the optimal alternative for the agent given the compensation system c and the other information W. This probability is given as the ratio of the volume of the polyhedron O(a i ) to the volume of W.…”

Section: Model Formulation and Evaluation Methodsmentioning

confidence: 99%

Multicriteria agency theory

Vetschera

1998

J. Multi-Crit. Decis. Anal.

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“…A sensitivity analysis was also performed to evaluate the robustness of the decision accomplished [11]. Sensitivity analysis allows the adjustment of values for benefits, opportunities, costs, and risks to determine whether there are critical values for each above or below which the model would recommend a different approach.…”

Section: Analytic Hierarchy Processmentioning

confidence: 99%

Diagnosis of Periprosthetic Joint Infection in Medicare Patients: Multicriteria Decision Analysis

Díaz-Ledezma¹,

Lichstein²,

Parvızı³

2014

Clinical Orthopaedics &Amp; Related Research

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Background In the setting of finite healthcare resources, developing cost-efficient strategies for periprosthetic joint infection (PJI) diagnosis is paramount. The current levels of knowledge allow for PJI diagnostic recommendations based on scientific evidence but do not consider the benefits, opportunities, costs, and risks of the different diagnostic alternatives. Questions/purposes We determined the best diagnostic strategy for knee and hip PJI in the ambulatory setting for Medicare patients, utilizing benefits, opportunities, costs, and risks evaluation through multicriteria decision analysis (MCDA). Methods The PJI diagnostic definition supported by the Musculoskeletal Infection Society was employed for the MCDA. Using a preclinical model, we evaluated three diagnostic strategies that can be conducted in a Medicare patient seen in the outpatient clinical setting complaining of a painful TKA or THA. Strategies were (1) screening with serum markers (erythrocyte sedimentation rate [ESR]/ C-reactive protein [CRP]) followed by arthrocentesis in positive cases, (2) immediate arthrocentesis, and (3) serum markers requested simultaneously with arthrocentesis. MCDA was conducted through the analytic hierarchy process, comparing the diagnostic strategies in terms of benefits, opportunities, costs, and risks. Results Strategy 1 was the best alternative to diagnose knee PJI among Medicare patients (normalized value: 0.490), followed by Strategy 3 (normalized value: 0.403) and then Strategy 2 (normalized value: 0.106). The same ranking of alternatives was observed for the hip PJI model (normalized value: 0.487, 0.405, and 0.107, respectively). The sensitivity analysis found this sequence to be robust with respect to benefits, opportunities, and risks. However, if during the decisionmaking process, cost savings was given a priority of higher than 54%, the ranking for the preferred diagnostic strategy changed. Conclusions After considering the benefits, opportunities, costs, and risks of the different available alternatives, our preclinical model supports the American Academy of Orthopaedic Surgeons recommendations regarding the use of serum markers (ESR/CRP) before arthrocentesis as the best diagnostic strategy for PJI among Medicare patients. Level of Evidence Level II, economic and decision analysis. See Instructions to Authors for a complete description of levels of evidence.

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On Sensitivity Analysis in the Analytic Hierarchy Process

Cited by 33 publications

References 0 publications

Surgical Approaches for Cam Femoroacetabular Impingement: The Use of Multicriteria Decision Analysis

Surgical Approaches for Cam Femoroacetabular Impingement: The Use of Multicriteria Decision Analysis

Multicriteria agency theory

Diagnosis of Periprosthetic Joint Infection in Medicare Patients: Multicriteria Decision Analysis

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