Table 4.

of salvage radiation therapy (RT) for loco-regional recurrent non-small cell lung cancer

Study	Period	No.	RT dose, median (range, Gy)	Proportion of patients receiving CCRT (%)	OS at 2 yr (%)	Median OS (mo)
Kelsey et al. [12]	1991-2003	29	66 (46-74)	51.7	38	17
Tada et al. [13]	1992-2002	31	60	16.1	30	14
Cai et al. [14]	1992-2004	54	> 59.4	47.8	14.8 (at 5 yr)	19.8
Bae et al. [15]	1994-2007	64	54 (44-66)	21.9	47.9	18.5
Bar et al. [16]	1999-2009	30	63.5 (26-66)	100	50.8	26.9
Lee et al. [17]	2001-2009	38	60 (45-75)	31.6	56	27.9
Kim et al. [18]	2004-2014	57	66 (45-70)	73.7	62.4	54.8
Seol et al. [19]	2008-2013	31	66 (51-66)	51.6	58.4	14
Current study	2004-2016	127	66 (37-70)	100	72.9	49

CCRT, concurrent chemo-radiation therapy; OS, overall survival.