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Table 1 Demographic comparison of patients in non-MT group and MT group

From: Clinical efficacy and safety of maintenance therapy for advanced non-small cell lung cancer: a retrospective real-world study

Index Non-MT group (n = 87) MT group (n = 71) t/χ 2 P value
Age (Year, \(\overline{x}\) ± s) 60.28 ± 7.78 61.63 ± 9.30 0.869 0.386
Gender (N)    0.079 0.778
Man 52 (59.8%) 44 (62.0%)   
Woman 35 (40.2%) 27 (38.0%)   
Marital status (N)    1.348 0.246
Married 76 (87.4%) 66 (93.0%)   
Non-married 11 (12.6%) 5 (7.0%)   
Smoking history    0.799 0.372
Yes 58 (66.7%) 52 (73.2%)   
No 29 (33.3%) 19 (26.8%)   
Medical insurance    2.069 0.558
New rural cooperative 37 (42.5%) 26 (36.6%)   
Residents 25 (28.7%) 21 (29.6%)   
Employees 16 (18.4%) 19 (26.8%)   
Self-pay 9 (10.4%) 5 (7.0%)   
Pathological type (N)    0.842 0.175
Adenocarcinomas 65 (74.7%) 46 (64.8%)   
Squamous 22 (25.3%) 25 (35.2%)   
Clinical TNM stage (N)    0.589 0.443
IIIB 47 (54.0%) 34 (47.9%)   
IV 40 (46.0%) 37 (52.1%)   
Metastasis site (N)    0.955 0.917
Contralateral lung 31 (35.6%) 27 (38.0%)   
Liver 14 (16.1%) 9 (12.7%)   
Bone 18 (20.7%) 13 (18.3%)   
Brain 17 (19.5%) 13 (18.3%)   
Others 8 (9.2%) 9 (12.7%)   
Distal metastasis (N)    1.313 0.252
1 ~ 2 55 (63.2%) 48 (67.6%)   
 ≥ 3 32 (36.8%) 23 (32.4%)   
PS score (N)    0.782 0.376
0 ~ 1 62 (71.3%) 55 (77.5%)   
2 25 (28.7%) 16 (22.5%)   
First-line chemotherapy drugs (N)    2.155 0.707
Vinorelbine + cisplatin/carboplatin 7 6   
Taxol + cisplatin/carboplatin 9 6   
Gemcitabine + cisplatin/carboplatin 26 15   
Docetaxel + cisplatin/carboplatin 20 18   
Pemetrexed + cisplatin/carboplatin 25 26   
Antiangiogenic drugs (N)    0.574 0.750
Recombinant human vascular endostatin 8 6   
Bevacizumab 11 12   
No 68 53   
Therapeutic efficacy    0.056 0.972
CR 7 (8.1%) 5 (7.0%)   
PR 29 (33.3%) 24 (33.8%)   
SD 51 (58.6%) 42 (59.2%)   
  1. MT, maintenance treatment; TNM, tumor, node, metastasis; PS, performance statue; CR, complete response; PR, partial response; SD, stable disease. P value of age was calculated by two-sided t-test, and the rest indexes were calculated by two-sided chi-square test