Table 1.
Demographic and clinical characteristics of patients who underwent curative intent surgery for pancreatic adenocarcinoma
| All patients (n=557) |
Men (n=296) |
Women (n=261) |
P valuea | |
|---|---|---|---|---|
| Age at surgery (years); mean±SD | 65.7±10,6 | 65.2±10.8 | 66.3±10,3 | 0.21 |
| Total psoas area (cm2/m2); mean±SD | 537.7±168.1 | 611.0±167.9 | 454.3± 123.7 | <0.001 |
| Cutoff for lowest quartile (cm2/m2) | 413 | 492 | 362 | |
| Race | ||||
| White; n (%) | 475 (85.3) | 260 (87.8) | 215 (82.4) | 0.46 |
| Black; n (%) | 45 (8.1) | 20 (6.8) | 25 (9.6) | |
| Hispanic; n (%) | 12 (2.2) | 5(1.7) | 7 (2.7) | |
| Asian; n (%) | 9(1.6) | 3(1.0) | 6 (2.3) | |
| North American Native; n (%) | 1 (0.2) | 0 | 1 (0.4) | |
| Other; n (%) | 15 (2.7) | 8 (2.7) | 4 (2.7) | |
| Tumor characteristics | ||||
| Grade of tumor | ||||
| Well differentiated; n (%) | 27 (4.9) | 15 (5.0) | 12 (4.6) | 0.11 |
| Moderately differentiated; n (%) | 304 (54.6) | 150 (50.7) | 154 (59.0) | |
| Poorly differentiated; n (%) | 226 (40.6) | 131 (44.3) | 95 (36.4) | |
| Stage of tumor | ||||
| I; n (%) | 33 (5.9) | 13 (4.4) | 20 (7.7) | 0.36 |
| II; n (%) | 94 (16.9) | 51 (17.2) | 43 (16.5) | |
| III; n (%) | 398 (71.5) | 214 (72.3) | 184 (70.5) | |
| IV; n (%) | 22 (4.0) | 14 (4.7) | 8(3.1) | |
| is; n (%) | 1 (0.2) | 1 (0.3) | 0 | |
| Unknown; n (%) | 9(1.6) | 3(1.0) | 6 (2.3) | |
| Nodal metastasis; n (%) | 433 (77.7) | 237 (80.1) | 196 (75.1) | 0.16 |
| Distant metastasis; n (%) | 11 (2.0) | 5 (1.7) | 6 (2.3) | 0.73 |
| Tumor size (cm); mean±SD | 3.4± 1.5 | 3.5± 1.6 | 3.2±1.4 | 0.01 |
| Number of positive nodes; mean±SD | 3.3±3.5 | 3.5±3.5 | 3.0±3.5 | 0.13 |
| Number of resected nodes; mean±SD | 19.8±8.8 | 19.6±8.2 | 20.0±9.5 | 0.54 |
| Type of operation | ||||
| Pancreatoduodenectomy; n (%) | 479 (86.0) | 261 (87.8) | 219 (84.0) | 0.18 |
| Distal pancreatectomy; n (%) | 78 (14.0) | 36 (12.2) | 42 (16.1) |
a
P value for comparison between men and women