Evaluation of surgical outcomes and prognostic factors of second primary lung cancer based on a systematic review and meta-analysis

Table 3 Clinicopathologic traits of included articles (continued)

Study (year)	Extent of resection first operation			Extent of lung resection second operation			Lymph node metastasis		5-year OS (%)
Study (year)	Sublobar	Lobectomy	Pneumonectomy	Sublobar	Lobectomy	Completion pneumonectomy	N0	N1 + N2	First tumor	mSPLC
Hamaji et al.(2013) [31]	28	126	7	124	36	1	104	57	87.4	60.8
Yang et al.(2014) [30]	1	140	2	60	50	33	82	61	83.9	54.5
Zhao et al.(2017) [23]	21	94	NR	58	57	NR	87	28	86.5	69.5
Sato et al.(2021) [28]	14	47	NR	39	11	11	41	20	NR	78.7
Doddoli et al.(2001) [27]	NR	36	2	12	10	16	27	11	70	32
Lee et al.(2009) [32]	6	50	2	35	23	NR	56	2	NR	66
Zuin et al.(2013) [24]	10	106	5	60	44	17	107	14	76	42
Aziz et al.(2002) [25]	8	32	1	4	26	11	33	8	NR	44
Riquet et al.(2008) [26]	NR	NR	NR	54	103	77	144	90	NR	31.6
Battafarano et al.(2004) [22]	9	57	3	34	31	4	50	19	60.9	33.4
Rea et al.(2001) [29]	13	65	2	40	32	8	71	9	77	51

ISSN: 1471-2482