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Analysis of treatment cost and persistence among migraineurs: A two-year retrospective cohort study in Pakistan

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  • Kamran Khan
  • Mudassar Iqbal Arain
  • Muhammad Arif Asghar
  • Ahad Abdul Rehman
  • Muhammad Ali Ghoto
  • Abdullah Dayo
  • Muhammad Suleman Imtiaz
  • Mohsin Hamied Rana
  • Muhammad Asif Asghar

Abstract

Objectives: The persistence pattern of anti-migraine drugs’ use among migraineurs is very low in the United States and different European countries. However, the cost and persistence of antimigraine drugs in Asian countries have not been well-studied. Hence, the present study aimed to evaluate the treatment cost and persistence among migraineurs in Pakistan. Methods: Data from prescriptions collected from migraineurs who visited the Outpatient Department (OPD) of different public and private sector tertiary-care hospitals of Karachi, Pakistan were used to conduct this retrospective cohort study from 2017 to 2019. The minimum follow up period for each migraineur was about 12 months for persistence analysis while dropped-out patients data were also included in survival analysis as right censored data. Pairwise comparisons from Cox regression/hazards ratio were used to assess the predictors of persistence with the reference category of non-binary variables i.e. hazard ratio = 1 for low frequency migraineurs and NSAIDs users. Persistence with anti-migraine drugs was estimated using the Kaplan-Meier curve along with the Log Rank test. Results: A total of 1597 patients were included in this study, 729 (45.6%) were male and 868 (54.3%) were female. Non-steroidal anti-inflammatory drugs (NSAIDs) were the most prescribed class of drug initially for all classes of migraineurs (26.1%). Of them, 57.3% of migraineurs discontinued their treatment, 28.5% continued while 14.8% were switched to other treatment approaches. Persistence with initial treatment was more profound in female (58.8%) patients compared to males while the median age of continuers was 31 years. The total cost of migraine treatment in the entire study cohort was 297532.5 Pakistani Rupees ($1901.1). By estimating the hazard ratios (HR) using the Cox regression analysis, it can be observed that patients with high frequency (HR, 1.628; 95%CI, 1.221–2.179; p

Suggested Citation

  • Kamran Khan & Mudassar Iqbal Arain & Muhammad Arif Asghar & Ahad Abdul Rehman & Muhammad Ali Ghoto & Abdullah Dayo & Muhammad Suleman Imtiaz & Mohsin Hamied Rana & Muhammad Asif Asghar, 2021. "Analysis of treatment cost and persistence among migraineurs: A two-year retrospective cohort study in Pakistan," PLOS ONE, Public Library of Science, vol. 16(3), pages 1-13, March.
    • Handle: RePEc:plo:pone00:0248761
    DOI: 10.1371/journal.pone.0248761
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    References listed on IDEAS

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    1. Paul T E Cusack, 2020. "On Pain," Biomedical Journal of Scientific & Technical Research, Biomedical Research Network+, LLC, vol. 31(3), pages 24253-24254, October.
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