Results
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A total of 137 nurses were identified from the nursing office for initial eligibility screening. We excluded 73 participants because they did not meet the inclusion criteria (51 were not diagnosed with CFS; 22 declined to participate). The remaining 64 participants were then randomly assigned to either the intervention or placebo group.
At the end of the intervention, 4 participants (13.8%) in the Astragalus root extract group (n=29) and 24 (80%) in the control group (n=30) had CFS and at the 1-month follow-up, 5 participants (17.2%) in the Astragalus root extract group and 21 (70 %) in the control group (n=53) had CFS (no missing cases).


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