Video-assisted thoracoscopic surgery versus muscle-sparing thoracotomy for non-small cell lung cancer: a systematic review and meta-analysis

Table 1 Characteristics of the included clinical trials

Study	Year	Country	Study design	Gender (M/F)	Sample size VATS/MST	Staging	Propensity score matching	Quality assessment
Giudicelli	1994	France	Prospective	50/17	44/23	Pathologic Stage I to stage IV	Unmatched	NOS: 6
Kirby	1995	USA	RCT	26/35	30/31	Clinical stage I	Unmatched	Jadad: 1
Nomori	2001	Japan	Prospective	44/22	33/33	Clinical stage I	Unmatched	NOS: 8
Wang	2010	China	Retrospective	175/141	121/195	Pathologic Stage I to stage IV	Unmatched	NOS: 6
Ilonen	2013	Finland	Retrospective	125/107	116/116	Clinical stage I	Matched	NOS: 7
Erus	2014	Turkey	Prospective	35/20	25/30	Clinical stage I	Unmatched	NOS: 8
Kuritzky	2015	USA	Retrospective	45/75	60/60	Clinical stage I	Matched	NOS: 8
Usuda	2017	Japan	Retrospective	46/41	25/62	Clinical Stage I to stage III	Unmatched	NOS: 6
Zhao	2017	China	Retrospective	250/232	241/241	Clinical stage I	Matched	NOS: 8
Menna	2018	Italy	Retrospective	18/10	16/12	Clinical Stage I	Unmatched	NOS: 7

Abbreviations: non-RCT non-randomized controlled trial, RCT randomized controlled trial, VATS video-assisted thoracoscopic surgery, MST muscle-sparing thoracotomy, NOS Newcastle-Ottawa Scale

ISSN: 1471-2482