Table 3.
Univariate Analysis for Clinical Factors and PET/CT Parameters Related to PFS and OS.
Clinical Factors and Parameters | Median PFS, Months | P | Median OS, Months | P | |
---|---|---|---|---|---|
Gender | Male | 8.4 | .004 | 26.6 | .04 |
Female | 6.2 | 21.5 | |||
Age | ≤58 | 7.4 | .032 | 31.7 | .018 |
>58 | 5.8 | 20.7 | |||
Smoking status | No | 8.2 | .025 | 24.6 | .382 |
Yes | 5.4 | 19.9 | |||
PET/CT stage | I | 9.6 | .0 | 55.5 | .0 |
II | 8.4 | 37.8 | |||
III | 7.6 | 29.9 | |||
Ⅳ | 5.7 | 17.4 | |||
Histology | Adenocarcinoma | 6.7 | .002 | 25.5 | .051 |
Squamous cell carcinoma | 8.1 | 21.1 | |||
Poorly differentiated NSCLC | 4.8 | 21.5 | |||
Others | 5.2 | 32.9 | |||
Differentiation degree | Well-differentiated | 23.4 | .0 | 49.1 | .014 |
Moderately differentiated | 13.6 | 48.3 | |||
Poorly differentiated | 5.2 | 21.1 | |||
Type of surgery | Lobectomy | 12.7 | .0 | 48.6 | .0 |
Pneumonectomy | 10.5 | 35.6 | |||
Others | 8 | 19.3 | |||
No surgery | 6 | 19.3 | |||
Chemotherapy regimen | PMX-based | 7 | .013 | 29.4 | .001 |
PTX-based | 5.2 | 20.7 | |||
GEMZ-based | 6.3 | 23.1 | |||
TXT-based | 7.7 | 19.4 | |||
Adjuvant radiotherapy | No | 6.3 | .932 | 21.5 | .725 |
Yes | 7 | 26.6 | |||
Targeted therapy | No | 6.4 | .782 | 23 | .812 |
Yes | 7.2 | 21.8 | |||
SCC, ng/mL | ≤1.5 | 7 | .005 | 27.4 | .001 |
>1.5 | 5.2 | 13.3 | |||
CEA, ng/mL | ≤5.0 | 7.6 | .038 | 31 | .155 |
>5.0 | 6.5 | 21.6 | |||
NSE, ng/mL | ≤15.2 | 6.5 | .071 | 29.1 | .1 |
>15.2 | 6.6 | 20.7 | |||
SUVmax | ≤11.72 | 7 | .798 | 24.7 | .886 |
>11.72 | 6.5 | 21.7 | |||
MTV50 | ≤4.04 | 8.2 | .034 | 34.5 | .021 |
>4.04 | 6 | 18.1 | |||
TLG50 | ≤34.55 | 7.6 | .094 | 29.3 | .052 |
>34.55 | 6.3 | 19.3 |
Abbreviations: CEA, carcinoembryonic antigen; CT, computed tomography; GEMZ, gemcitabine; MTV, metabolic tumor volume; NSCLC, non-small cell lung cancer; NSE, neuron-specific enolase; OS, overall survival; PET, positron emission tomography; PFS, progression-free survival; PMX, pemetrexed; PTX, paclitaxel; SCC, squamous cell carcinoma antigen; SUVs, standardized uptake values; TLG, total lesion glycolysis; TXT, docetaxel.