Favipiravir versus other antiviral or standard of care for COVID-19 treatment: a rapid systematic review and meta-analysis

Table 1 NHLBI assessment of observational studies and case series

Study	Study type	Score	Percentage	Quality
Çalik BaŞaran et al. [11]	Prospective observational study	10/14	71.4	Good
Doi et al. [12]	Case series	6/9	66.66	Good
Irie et al. [13]	Case series	6/9	66.66	Good
Rattanaumpawan et al. [14]	Retrospective observational study	8/14	57.1	Fair
Yamamura et al. [15]	Prospective single center study	10/14	71.4	Good

Good if they fulfilled 60–100% of the tool items, fair if 50–59% or Poor if 0–49%

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