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JOURNAL ARTICLE
REVIEW
Quality of reporting of randomized controlled trials of herbal medicines conducted in metabolic disorders in Middle East countries: A systematic review.
Complementary Therapies in Medicine 2018 June
INTRODUCTION: Based on WHO recommendation for considering herbal medicine as an inexpensive appropriate method to treat metabolic disorders, conducting randomized controlled trials (RCTs) is increasing worldwide. Since poor quality RCTs can lead to wrong conclusion, we assessed the quality of reporting of herbal medicines' RCTs conducted in Middle East in a systematic review study.
MATERIALS & METHODS: All herbal medicines' RCTs in metabolic disorders (diabetes mellitus, metabolic syndrome, hyperlipidemia, obesity and osteoporosis) conducted in Middle East countries and published before January 2017 were included. To obtain all related studies PubMed, Scopus, Web of Science, Cochran library, and Embase web databases were searched. Exclusion criteria were animal studies, non-herbal medicines' RCTs, RCTs conducted in Type 1 diabetes, in children or pregnant women. We used Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) checklist for reporting study selection processes as well as Consolidated Standards of Reporting Trials (CONSORT) statement for assessment of quality of reporting.
RESULTS: Out of 5319 identified studies, 215 RCTs were included. The proportion of published RCTs in the topic increased significantly over the time (P < 0.001). The total mean ± SD score for 37 items of CONSORT checklist was 21.15 ± 4.27. Most of RCTs (60%) were not reported randomization in the title. Some important items were incompletely reported including trial registration (42.3%), sample size estimation (38.1%), randomization method (35.3%), generation of allocation (27.9%), and concealment of allocation (13.5%).
CONCLUSIONS: Our findings indicate that the quality of reporting of herbal medicines' RCTs in metabolic disorders has improved over time in Middle East, but remains suboptimal.
MATERIALS & METHODS: All herbal medicines' RCTs in metabolic disorders (diabetes mellitus, metabolic syndrome, hyperlipidemia, obesity and osteoporosis) conducted in Middle East countries and published before January 2017 were included. To obtain all related studies PubMed, Scopus, Web of Science, Cochran library, and Embase web databases were searched. Exclusion criteria were animal studies, non-herbal medicines' RCTs, RCTs conducted in Type 1 diabetes, in children or pregnant women. We used Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) checklist for reporting study selection processes as well as Consolidated Standards of Reporting Trials (CONSORT) statement for assessment of quality of reporting.
RESULTS: Out of 5319 identified studies, 215 RCTs were included. The proportion of published RCTs in the topic increased significantly over the time (P < 0.001). The total mean ± SD score for 37 items of CONSORT checklist was 21.15 ± 4.27. Most of RCTs (60%) were not reported randomization in the title. Some important items were incompletely reported including trial registration (42.3%), sample size estimation (38.1%), randomization method (35.3%), generation of allocation (27.9%), and concealment of allocation (13.5%).
CONCLUSIONS: Our findings indicate that the quality of reporting of herbal medicines' RCTs in metabolic disorders has improved over time in Middle East, but remains suboptimal.
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