Research Article

Correlation between the Immune Checkpoint Inhibitors Prognostic Index and Outcomes in Nonsmall Cell Lung Cancer: A Multicentre Analysis

Table 4

The baseline characteristics according to the ICPI group in the ICIs cohort.

Low-risk ICPIModerately high-risk ICPI value
n = 101n = 42

Sex0.314
 Male19 (18.8)5 (11.9)

Age (year)0.923
 ≥6540 (39.6)17 (40.5)

Smoking status0.031
 Nonsmoker21 (20.8)16 (38.1)
 Smoker80 (79.2)26 (61.9)

Histology0.960
 Adenocarcinoma52 (51.5)21 (50.0)
 Squamous43 (42.6)18 (42.9)
 NSCLC-others6 (5.9)3 (7.1)

KRAS alteration status0.496
 KRAS wild-type43 (42.6)22 (52.4)
 KRAS-mutant5 (5.0)1 (2.4)
 NA53 (52.5)19 (45.2)

PD-L1 status0.622
 Negative6 (5.9)2 (4.8)
 Positive15 (14.9)9 (21.4)
 NA80 (79.2)31 (73.8)

PS (ECOG)0.085
 0-1101 (100)40 (95.2)
 ≥20 (0)2 (4.8)

Stage0.090
 I-II7 (6.9)0 (0)
 IIIA8 (7.9)1 (2.4)
 IIIB–IV86 (85.1)41 (97.8)

Metastatic sites number<0.001
 <250 (49.5)7 (16.7)
 ≥251 (50.5)35 (83.3)

Metastatic sites
 Live9 (8.9)9 (21.4)0.04
 Bone16 (15.8)18 (42.9)0.001
 Brain14 (13.9)5 (11.9)0.754
 WBC (×109/L)6.44 (5.22–7.75)8.11 (6.09–10.13)<0.001
 ANC (×109/L)4.04 (2.81–5.10)6.02 (4.69–8.00)<0.001
 ALC (×109/L)1.60 (1.13–1.95)1.01 (0.81–1.54)<0.001
 MON (×109/L)0.54 (0.39–.071)0.61 (0.41–0.75)0.879
 RDW (%)13.4 (13.0–14.6)14.6 (13.6–14.9)0.150
 PLT (×109/L)231 (163–289)212 (180–309)0.929
 ALB (g/L)42.93 ± 3.6136.49 ± 4.26<0.001
 PLR139.0 (110.1–198.4)218.5 (144.2–284.5)<0.001
 dNLR1.93 (1.16–2.28)3.62 (2.51–4.31)<0.001

ICIs drug0.028
 Sintilimab18 (90)2 (10)
 Nivolumab21 (56.8)16 (43.2)
 Pembrolizumab62 (72.1)24 (27.9)

ICIs treatment modality0.011
 ICI monotherapy26 (56.5)20 (43.5)
 ICI + chemotherapy75 (77.3)22 (22.7)
 ICI + antiangiogenic

ICIs line0.168
 136 (35.6)10 (23.8)
 ≥265 (64.4)32 (76.2)

Previous treatments
 Chemotherapy61 (60.4)28 (66.7)0.481
 Radiotherapy11 (10.9)12 (28.6)0.009
 EGFR-TKI8 (7.9)4 (9.5)0.753
 Antiangiogenic16 (15.8)9 (21.4)0.423
 Surgery9 (8.9)4 (9.5)0.156

Disease response0.103
 CR2 (2.0)0 (0)
 PR44 (43.6)16 (38.1)
 SD42 (41.6)13 (31.0)
 PD13 (12.9)13 (21.0)

Response rates
 ORR (%)45.538.10.714
 DCR (%)87.1690.031