Research Article
Preoperative Body Composition Combined with Tumor Metabolism Analysis by PET/CT Is Associated with Disease-Free Survival in Patients with NSCLC
Table 2
Relationship between primary tumor SUVmax, body composition, and clinical features.
| | Characteristic (mean ± SD) | SUVmax | | Low (n = 77) | High (n = 77) | P |
| | Gender (%) | | | 0.379 | | Female | 26 (33.8) | 20 (26.0) | | | Male | 51 (66.2) | 57 (74.0) | | | Age† | 60.00 [53.00, 66.00] | 59.00 [51.00, 64.00] | 0.253 | | BMI† | 21.78 [19.78, 24.17] | 23.19 [21.10, 25.34] | 0.015 | | SMA (cm2) | 106.35 (21.00) | 115.08 (22.01) | 0.013 | | SMI | 43.61 (3.94) | 44.03 (4.36) | 0.533 | | SMD (HU) | 43.68 (3.08) | 44.33 (3.38) | 0.212 | | VFA† (cm2) | 92.86 [61.96, 137.17] | 123.08 [72.69, 166.21] | 0.005 | | VATI† | 34.48 [23.28, 53.16] | 45.40 [28.42, 61.33] | 0.017 | | SVR† | 1.10 [0.78, 1.60] | 0.90 [0.70, 1.38] | 0.065 | | Sarcopenia (%) | | | 0.872 | | Without | 38 (49.4) | 36 (46.8) | | | With | 39 (50.6) | 41 (53.2) | | | Pathology (%) | | | 0.002 | | Adenocarcinoma | 54 (70.1) | 34 (44.2) | | | Squamous carcinoma | 23 (29.9) | 43 (55.8) | | | Differentiation (%) | | | <0.001 | | Poor | 19 (24.7) | 31 (40.3) | | | Moderate | 33 (42.9) | 40 (51.9) | | | Well | 25 (32.5) | 6 (7.8) | | | SUVmax† | — | — | | | Liver SUVmean† | 2.09 [1.87, 2.46] | 2.25 [2.01, 2.49] | 0.09 | | Spleen SUVmean† | 1.84 [1.60, 2.03] | 1.91 [1.72, 2.03] | 0.208 | | AJCC stage | | | <0.001 | | Stage I | 51 (66.2) | 22 (28.6) | | | Stage II | 16 (20.8) | 30 (39.0) | | | Stage III | 10 (13.0) | 25 (32.5) | | | T stage (%) | | | <0.001 | | T1 | 53 (68.8) | 15 (19.5) | | | T2 | 19 (24.7) | 42 (54.5) | | | T3 | 4 (5.2) | 12 (15.6) | | | T4 | 1 (1.3) | 8 (10.4) | | | N stage (%) | | | 0.052 | | N0 | 59 (76.6) | 45 (58.4) | | | N1 | 9 (11.7) | 15 (19.5) | | | N2 | 9 (11.7) | 17 (22.1) | |
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†Non-normal distribution, quartile.
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