Is endoscopic retrograde appendicitis therapy a better modality for acute uncomplicated appendicitis? A systematic review and meta-analysis

Table 2 Detailed quality assessment of included studies using modified Jadad score

Ref.	Randomization	Concealment of allocation	Double blinding	Description of withdrawals and dropouts	Total score
Kang et al[1], 2018	2	0	0	1	3
Deng et al[2], 2018	0	0	0	1	1
Huang et al[3], 2020	2	0	0	0	0
Lin et al[4], 2016	0	0	0	0	0
Ma et al[5], 2020	1	0	0	0	1
Wang et al[6], 2017	2	0	0	0	2
Pan et al[7], 2018	2	0	0	0	2
Wu et al[9], 2019	0	0	0	1	1
Ye et al[10], 2016	0	0	0	1	1
Zhang et al[11], 2017	1	0	0	0	1
Zhu et al[12], 2018	2	0	0	1	3
Yang et al[13], 2016	2	0	0	0	2