Table 1.
Characteristics of the enrolled patients.
| Variables | N | (%) | |
|---|---|---|---|
| Clinicopathologic Factors | |||
| Age (years) | <65/≥65 | 80/55 | 59.3/40.7 |
| Sex | Male/female | 78/57 | 57.8/42.2 |
| Smoking | Non-smoker/ex-smoker/smoker | 68/65/2 | 50.4/48.1/1.5 |
| ECOG-PS | 0/1/2 | 8/70/57 | 5.9/51.9/42.2 |
| Stage | IIIB/IV | 12/123 | 8.9/91.1 |
| Cell type | Adenocarcinoma/squamous cell carcinoma/others | 92/29/14 | 68.1/21.5/10.4 |
| Number of organs with metastasis | 0/1/2/3 | 12/54/39/30 | 8.9/40.0/28.9/22.2 |
| Prior surgery | No/yes | 102/33 | 75.6/24.4 |
| Prior chemotherapy | None/first line/second line/≥third line | 58/38/13/26 | 43.0/28.1/9.6/19.3 |
| Prior radiotherapy | No/yes | 86/49 | 63.7/36.3 |
| Host-related Biomarkers | |||
| Ferritin (ng/mL) | Men ≤200/>200 | 35/43 | 44.9/55.1 |
| Women ≤150/>150 | 32/25 | 56.1/43.9 | |
| Hemoglobin (g/dL) | Men <13/≥13 | 43/35 | 55.1/44.9 |
| Women<12/≥12 | 35/21 | 62.5/37.5 | |
| Platelet (× 103/μL) | <400/≥400 | 123/12 | 91.1/8.9 |
| Neutrophil (cells/μL) | ≤7700/>7700 | 117/18 | 86.7/13.3 |
| Lymphocyte (cells/μL) | <1500/≥1500 | 78/57 | 57.8/42.2 |
| Monocyte (cells/μL) | ≤800/>800 | 122/13 | 90. 4/9.6 |
ECOG-PS = Eastern Cooperative Oncology Group performance status