Table 1.

Characteristics of patients included in the review

No	Author	Year	Design	Country	Period	Histology	Sex, (M/F)	Age	NOS
1	Chaichana KL	2009	R	USA	1996–2006	NSLC: 85%; SLC: 15%	17/10	Mean ± SD: 62.0 ± 11.0	8
2	Lei M	2016	R	China	2005–2015	NSLC: 100%	48/25	Median: 57	7
3	Chen YJ	2015	R	China	2000–2010	NSLC: 100%	34/16	Median (range): 62 (20–87)	7
4	Park SJ	2016	P	Korea	2010–2014	NSLC: 100%	27/23	Mean ± SD: 58.0 ± 11.3	8
5	Zairi F	2016	R	France	2005–2011	NSLC: 84.9%; SLC: 15.1%	45/8	Median (range): 59 (36–78)	9
6	Tang Y	2015	R	China	2002–2013	NSLC: 100%	75/41	Median (range): 55.0 (26–79)	7
7	Lin HH	2019	R	China	2001–2011	NSLC: 100%	39/26	Mean ± SD: 60.7 ± 11.3	8
8	Jung JM	2021	R	Korea	2004–2019	NSLC: 100%	39/19	Mean ± SD: 62.0 ± 9.6	7
9	Chen Q	2021	R	China	2009–2021	NSLC: 94%; SLC: 6%	60/23	Median (range): 60 (42–81)	7
10	Zhang C	2020	R	China	2009–2015	NA	9/6	Median (range): 50 (40–68)	7
11	Fukuhara A	2010	R	Japan	1999–2007	NSLC: 76.9%; SLC: 23.1%	9/5	Median (range): 63 (54–78)	8
12	Hessler C	2011	R	German	1999–2004	NSLC: 71.4%; SLC: 28.6%	49/27	Median (range): 62 (37–89)	8
13	Truong VT	2021	R	France	2008–2018	NSLC: 92%; SLC: 8%	45/42	Mean ± SD: 61.3 ± 1.9	7
14	Tancioni F	2012	R	Italy	2004–2007	NA	NA	NA	8

R retrospective, P prospective, NSLC non-small cell lung cancer, SLC small cell lung cancer