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Table 3 Methodological quality of the systematic reviews included in the overview

From: Comparing the efficacy and safety of duloxetine and amitriptyline in the treatment of fibromyalgia: overview of systematic reviews

Author, year Methodological quality
(AMSTAR)
Thorpe et al., 2018 [18] 12/16 – moderate
Sommer et al.,2017 [19] 10/16 – low
Smith et al., 2011 [20] 15/16- high
Roskell et al., 2011 [6] 13/16 – moderate
Häuser et al., 2011 [21] 14/16 – high
Häuser et al., 2009 [5] 14/16 – high
Üçeyler et al., 2008 [22] 9/16 – very low
Perrot et al., 2008 [23] 7/16 – very low