Patient Characteristics According to Recurrence
| Characteristic | Total (n = 87) | Recurrence (n = 57) | No recurrence (n = 30) | P |
| Age (y) | 61 ± 10 | 61 ± 11 | 63 ± 8 | 0.6 |
| Sex | 0.8 | |||
| Male | 52 | 23 | 12 | |
| Female | 35 | 34 | 18 | |
| Diabetes mellitus | 44 | 30 (68) | 14 (32) | 0.7 |
| Neoadjuvant treatment | 0.9 | |||
| Yes | 30 | 20 (67) | 10 (33) | |
| No | 57 | 37 (65) | 20 (35) | |
| Adjuvant treatment | 0.3 | |||
| Yes | 65 | 45 (69) | 20 (31) | |
| No | 22 | 12 (55) | 10 (45) | |
| Tumor location | 0.4 | |||
| Head | 65 | 40 (62) | 25 (38) | |
| Body | 16 | 13 (81) | 4 (19) | |
| Tail | 6 | 4 (67) | 1 (33) | |
| Operation type | 0.4 | |||
| Classic pancreaticoduodenectomy | 8 | 6 (75) | 2 (25) | |
| Pylorus-preserving pancreaticoduodenectomy | 58 | 35 (60) | 23 (40) | |
| Total pancreatectomy | 3 | 3 (100) | 0 (0) | |
| Distal pancreatectomy | 18 | 13 (72) | 5 (28) | |
| Serum CA19-9 level (U/mL) | 536.6 ± 1,379.7 | 644.9 ± 1,679.1 | 330.9 ± 366.6 | 0.2 |
| Tumor size (cm) | 2.1 ± 0.9 | 2.3 ± 0.8 | 1.8 ± 1.0 | 0.01 |
| pT stage | 0.002 | |||
| Tx | 4 | 1 (25) | 3 (75) | |
| T1 | 13 | 5 (38) | 8 (62) | |
| T2 | 4 | 2 (50) | 2 (50) | |
| T3 | 66 | 49 (74) | 17 (26) | |
| Lymph node metastasis | 0.07 | |||
| Yes | 48 | 27 (56) | 21 (44) | |
| No | 39 | 30 (77) | 9 (23) | |
| TNM stage (n = 83) | 0.01 | |||
| IA–IB | 13 | 5 (38) | 8 (62) | |
| IIA | 31 | 21 (68) | 10 (32) | |
| IIB | 38 | 30 (79) | 8 (21) | |
| IV | 1 | 0 (0) | 1 (100) | |
| Differentiation (n = 77) | 0.2 | |||
| Well | 10 | 9 (90) | 1 (10) | |
| Moderate | 59 | 38 (64) | 21 (36) | |
| Poor | 8 | 5 (63) | 3 (37) | |
| Perineural invasion | 0.3 | |||
| Yes | 51 | 36 (71) | 15 (29) | |
| No | 36 | 21 (58) | 15 (42) | |
| Lymphovascular invasion | 0.6 | |||
| Yes | 25 | 18 (72) | 7 (28) | |
| No | 62 | 39 (63) | 23 (37) | |
| SUVmax | 0.06 | |||
| Median | 4.4 | 4.5 | 3.9 | |
| Range | 2.1–17.3 | 2.2–17.3 | 2.1–13.7 | |
| Glucose-corrected SUVmax | 0.05 | |||
| Median | 5.4 | 5.9 | 4.9 | |
| Range | 2.4–16.9 | 2.6–16.9 | 2.4–15.4 | |
| MTV (cm3) | 0.02 | |||
| Median | 3.9 | 4.1 | 2.0 | |
| Range | 0.0–28.1 | 0.0–28.1 | 0.0–18.9 | |
| TLG (g) | 0.02 | |||
| Median | 13.6 | 15.4 | 7.6 | |
| Range | 0.0–102.9 | 0.0–102.9 | 0.0–89.7 | |
| Glucose-corrected TLG (g) | 0.02 | |||
| Median | 14.7 | 16.5 | 8.4 | |
| Range | 0.0–156.9 | 0.0–135.9 | 0.0–156.9 |
Data in parentheses are percentages.