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Table 2 Survival outcomes of the included studies

From: Systematic review and meta-analysis of T1 glottic cancer outcomes comparing CO2 transoral laser microsurgery and radiotherapy

Study Stages Included in Analysis Mean Follow-Up Time Sample Size OS % (n) DSS % (n) LP % (n) LC % (n)
TLM RT TLM RT TLM RT TLM RT TLM RT
Low et al. [11] T1a 5 yrs 53 52 89 (47) 87 (45) 100 (53) 98 (51) 100 (53) 92 (48) 81 (43) 92 (48)
Alkan et al. [12] T1a, T1b 5 yrs 16 38 88 (14) 79 (30) 100 (16) 97 (37) 94 (15) 89 (34) 75 (12) 87 (33)
Taylor et al. [13] T1b 2 yrs 21 42 90 (19) 90 (38) 95 (20) 98 (41) 100 (21) 90 (38) 95 (20) 88 (37)
Remmelts et al. [14] T1a 5 yrs 50 54 90 (45) 81 (44) 100 (50) 98 (53) 100 (50) 96 (52) 90 (45) 94 (51)
Kerr et al. [15] T1a, T1b 2 yrs 125 62 94 (118) 95 (59) 100 (125) 92 (57)
Kujath et al. [20] T1 3 yrs 51 46 100 (51) 100 (46) 100 (51) 91 (42)
Mahler et al. [25] T1a 3 yrs 188 163 88 (165) 81 (132) 98 (184) 97 (158) 99 (187) 93 (152) 93 (174) 89 (145)
Schrijvers et al. [26] T1a 5 yrs 49 51 92 (45) 82 (42) 100 (49) 98 (50) 96 (47) 80 (41) 73 (36) 76 (39)
Thurnher et al. [28] T1a 5 yrs 81 108 100 (81) 91 (98) 100 (81) 84 (91) 90 (73) 69 (75)
Sjögren et al. [23] T1a 5 yrs 73 70 84 (61) 80 (56) 100 (73) 96 (67) 100 (73) 83 (58) 89 (65) 79 (55)
Goor et al. [22] T1a 2 yrs 54 31 100 (54) 100 (31) 100 (54) 100 (31) 100 (54) 97 (30) 94 (51) 90 (28)
Krengli et al. [18] T1a 5 yrs 122 80 96 (117) 91 (73) 96 (117) 91 (73)
Stoeckli et al. [19] T1 5 yrs 56 45 91 (51) 89 (40) 96 (54) 96 (43) 96 (54) 82 (37) 88 (49) 82 (37)
Brandenburg [21] T1a, T1b 5 yrs 30 44 100 (30) 95 (42) 97 (29) 86 (38) 83 (25) 80 (35)
Rosier et al. [24] T1a, T1b 5 yrs 31 41 84 (26) 90 (37)
Epstein et al. [27] T1a 5 yrs 17 43 88 (15) 84 (36) 71 (12) 86 (37)
  1. Abbreviations: RT radiotherapy, TLM transoral laser microsurgery, OS overall survival, DSS Disease Specific Survival, LC local control, LP laryngeal preservation, retro retrospective, pro prospective