Application of neoadjuvant chemoradiotherapy and neoadjuvant chemotherapy in curative surgery for esophageal cancer: A meta-analysis

Table 3 Quality of case-control studies and cohort studies

Ref.	Research type	Study endpoint	NOS scoring
Anderegg et al[11], 2017	CCS	1-9	7
Esophageal Cancer Study Group Participating Centers[12], 2019	CCS	3, 4, and 6	7
Gawad et al[13], 2015	CCS	4	6
Markar et al[14], 2017	CCS	3, 5, 7, 8, and 9	7
Tian et al[15], 2020	CCS	3, 4, 5, and 7	7
Nakashima[16], 2018	CCS	3-8	7
Park et al[17], 2020	CCS	5, 7, 8, 9	6
Pucher et al[18], 2020	CCS	1-7 and 9	6
Samson et al[19], 2016	CCS	5, 6, and 7	6
Spicer et al[20], 2016	CCS	1-5, 7, 8, and 9	7
Stiles et al[21], 2019	CCS	1-4, 6-9	7
Swisher et al[22], 2010	CCS	3, 4, and 6-9	7
Tang et al[23], 2023	CCS	5	6
Tercioti et al[24], 2011	CCS	6, 7, and 9	6
Tiesi et al[25], 2017	CCS	3-8	7
Jiang et al[26], 2022	CCS	4	7
Zhou et al[27], 2020	CS	3 and 4	7

CCS: Case-control study; CS: Cohort Study; NOS: Newcastle Ottawa Scale.