Table 3 Association of EGFR mutation with PD-1/PD-L1 expression
Data |  | All patients (n = 2853) n(%) | EGFR | p | |
|---|---|---|---|---|---|
Mutation (n = 1575) | Wild (n = 1278) | ||||
n (%) | n (%) | ||||
PD-L1(SP28-8) tumor cell |  < 1% | 1787 (85.71) | 1067 (59.71) | 720 (40.29) |  < 0.001 |
1–5% | 81 (3.88) | 30 (37.04) | 51 (62.96) | ||
5–10% | 45 (2.16) | 15 (33.33) | 30 (66.67) | ||
 ≥ 10% | 172 (8.25) | 56 (32.56) | 116 (67.44) | ||
PD-L1(SP142) tumor cell |  < 1% | 1477 (78.27) | 886 (59.99) | 591 (40.01) |  < 0.001 |
1–5% | 98 (5.19) | 47 (47.96) | 51 (52.04) | ||
5–10% | 62 (3.29) | 23 (37.10) | 39 (62.90) | ||
 ≥ 10% | 250 (13.25) | 71 (28.40) | 179 (71.60) | ||