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Shokri, Esmaeil, Razeghi, Mohsen, Raeisi Shahraki, Hadi, Jalli, Reza, Motealleh, Alireza. (1401). The Use of Cluster Analysis by Partitioning around Medoids (PAM) to Examine the Heterogeneity of Patients with Low Back Pain within Subgroups of the Treatment Based Classification System. سامانه مدیریت نشریات علمی, 13(1), 89-98. doi: 10.31661/jbpe.v0i0.2001-1047
Esmaeil Shokri; Mohsen Razeghi; Hadi Raeisi Shahraki; Reza Jalli; Alireza Motealleh. "The Use of Cluster Analysis by Partitioning around Medoids (PAM) to Examine the Heterogeneity of Patients with Low Back Pain within Subgroups of the Treatment Based Classification System". سامانه مدیریت نشریات علمی, 13, 1, 1401, 89-98. doi: 10.31661/jbpe.v0i0.2001-1047
Shokri, Esmaeil, Razeghi, Mohsen, Raeisi Shahraki, Hadi, Jalli, Reza, Motealleh, Alireza. (1401). 'The Use of Cluster Analysis by Partitioning around Medoids (PAM) to Examine the Heterogeneity of Patients with Low Back Pain within Subgroups of the Treatment Based Classification System', سامانه مدیریت نشریات علمی, 13(1), pp. 89-98. doi: 10.31661/jbpe.v0i0.2001-1047
Shokri, Esmaeil, Razeghi, Mohsen, Raeisi Shahraki, Hadi, Jalli, Reza, Motealleh, Alireza. The Use of Cluster Analysis by Partitioning around Medoids (PAM) to Examine the Heterogeneity of Patients with Low Back Pain within Subgroups of the Treatment Based Classification System. سامانه مدیریت نشریات علمی, 1401; 13(1): 89-98. doi: 10.31661/jbpe.v0i0.2001-1047

The Use of Cluster Analysis by Partitioning around Medoids (PAM) to Examine the Heterogeneity of Patients with Low Back Pain within Subgroups of the Treatment Based Classification System

Journal of Biomedical Physics and Engineering
مقاله 10، دوره 13، شماره 1، اردیبهشت 2023، صفحه 89-98    اصل مقاله (611.31 K)
نوع مقاله: Original Research
شناسه دیجیتال (DOI): 10.31661/jbpe.v0i0.2001-1047
نویسندگان
Esmaeil Shokri1؛ Mohsen Razeghi* 1، 2؛ Hadi Raeisi Shahraki3؛ Reza Jalli4؛ Alireza Motealleh1، 2
1Department of Physiotherapy, School of Rehabilitation Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
2Rehabilitation Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
3Department of Epidemiology and Biostatistics, Faculty of Health, Shahrekord University of Medical Sciences, Shahrekord, Iran
4Department of Radiology, Namazi Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
چکیده
Background: Current evidence in low back pain (LBP) focuses on population averages and traditional multivariate analyses to find the significant difference between variables. Such a focus actively obscured the heterogeneity and increased errors. Cluster analysis (CA) addresses the mentioned shortcomings by calculating the degree of similarity among the relevant variables of the different objects. 
Objective: This study aims to evaluate the agreement between the treatment-based classification (TBC) system and the equivalent 3 cluster typology created by partitioning around medoids (PAM) analysis.
Material and Methods: In this cross-sectional study, a convenient sample of 90 patients with low back pain (50 males and 40 females) aged 20 to 65 years was included in the study. The patients were selected based on the 21 criteria of 2007 TBC system. An equivalent 3 cluster typology (C3) was applied using PAM method. Cohen’s Kappa was run to determine if there was agreement between the TBC system and the equivalent C3 typology. 
Results: PAM analysis revealed the evidence of clustering for a C3 cluster typology with average Silhouette widths of 0.12. Cohen’s Kappa revealed fair agreement between the TBC system and C3 cluster typology (Percent of agreement 61%, Kappa=0.36, P<0.001). Selected criteria by PAM analysis were different with original TBC system.  
Conclusion: Higher probability of chance agreement was observed between two classification methods. Significant inhomogeneity was observed in subgroups of the 2007 TBC system.
کلیدواژه‌ها
Treatment Based Classification؛ Low Back Pain؛ Reproducibility of Results؛ Cluster Analysis؛ PAM Analysis
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