Table 2. Relationship between the SUV max and patient characteristics*.
Factors | SUVmax <4.5 [n (%)] | SUVmax ≥4.5 [n (%)] | P |
---|---|---|---|
Number | 70 | 72 | |
Age, years (mean ± SD) | 65±12 | 67±13 | 0.467 |
Gender | 0.726 | ||
Male | 39 (55.7) | 38 (52.8) | |
Female | 31 (44.3) | 34 (47.2) | |
Smoking | 0.392 | ||
Yes | 43 (61.4) | 38 (54.3) | |
No | 27 (38.6) | 32 (45.7) | |
Serum CEA, ng/mL (mean ± SD) | 4.1±7.4 | 4.0±8.3 | 0.928 |
Tumor size, cm (mean ± SD) | 1.3±0.8 | 2.2±1.1 | <0.001 |
DFI, months (mean ± SD) | 29±50 | 34±45 | 0.507 |
Laterality | 0.097 | ||
Bilateral | 10 (14.3) | 4 (5.6) | |
Unilateral | 60 (85.7) | 68 (94.4) | |
Number of tumors | 0.215 | ||
Multiple | 22 (31.4) | 16 (22.2) | |
Single | 48 (68.6) | 56 (77.8) | |
Surgery | <0.001 | ||
Wedge | 57 (81.4) | 35 (48.6) | |
Non-wedge | 13 (18.6) | 37 (51.4) | |
Curability | 0.812 | ||
Complete | 64 (91.4) | 65 (90.3) | |
Incomplete | 6 (8.6) | 7 (9.7) | |
Primary site | 0.089 | ||
Colorectal | 43 (61.4) | 34 (47.2) | |
Non-colorectal | 27 (38.6) | 38 (52.8) |
*, chi-square test used for categorical data and unpaired t-test used for continuous data. SUV, standardized uptake value; SD, standard deviation; CEA, carcinoembryonic antigen; DFI, disease-free interval.