Corrigendum: Efficacy and safety of low-dose naltrexone for the management of fibromyalgia: a systematic review and meta-analysis of randomized controlled trials with trial sequential analysis

1. RESULTS section: On page 372, sub-section "4) At least 30% improvement in pain", in the second to seventh line of the first left paragraph Before correction Meta-analysis from these studies showed administration of LDN was associated with a higher number of patients who experienced at least 30% improvement in pain when compared to a placebo (OR: 3.32, 95% CI: 1.59, 6.92, P = 0.001, I 2 = 0%, random-effect model) After correction Meta-analysis from these studies showed administration of LDN was associated with a higher number of patients who experienced at least 30% improvement in pain when compared to a placebo (OR: 2.47, 95% CI: 1.10, 5.54, P = 0.03, I 2 = 7%, random-effect model).