Table 2.
Characteristics of patients with non-metastatic gastric cancer by age, young versus elderly. Chinese cohort 2000-2012 (n=1037)
| Characteristics | Total | <50 | ≥50 | P valueb |
|---|---|---|---|---|
| 1037 (100) | 244 (23.53) | 793 (76.47) | ||
| Median Follow-up | ||||
| Months (IQR) | 45 (18-73) | 58.5 (26-76) | 42 (16-72) | |
| Age (IQR) | 60 (50-69) | 43(38-47) | 64 (57-71) | |
| Sex | <0.001 | |||
| Male | 724 (69.82) | 148 (60.66) | 576 (72.64) | |
| Female | 313 (30.18) | 96 (39.34) | 217 (27.36) | |
| Lauren classification | 0.001 | |||
| Intestinal | 773 (74.54) | 166 (68.03) | 607 (76.54) | |
| Mixed | 39 (3.76) | 5 (2.05) | 34 (4.29) | |
| Diffuse | 225 (21.7) | 73 (29.92) | 152 (19.17) | |
| Depth of invasion | 0.002 | |||
| T1 | 185 (17.84) | 62 (25.41) | 123 (15.51) | |
| T2 | 168 (16.2) | 43 (17.62) | 125 (15.76) | |
| T3 | 515 (49.66) | 101 (41.39) | 414 (52.21) | |
| T4 | 169 (16.3) | 38 (15.57) | 131 (16.52) | |
| Lymph node involvement | 0.905 | |||
| N0 | 384 (37.03) | 89 (36.48) | 295 (37.2) | |
| N1 | 176 (16.97) | 45 (18.44) | 131 (16.52) | |
| N2 | 196 (18.9) | 44 (18.03) | 152 (19.17) | |
| N3 | 281 (27.1) | 66 (27.05) | 215 (27.11) | |
| Site | 0.001 | |||
| Upper | 184 (17.74) | 24 (9.84) | 160 (20.18) | |
| Middle | 330 (31.82) | 88 (36.07) | 242 (30.52) | |
| Lower | 474 (45.71) | 124 (50.82) | 350 (44.14) | |
| Diffuse | 49 (4.73) | 8 (3.28) | 41 (5.17) | |
| Grade | <0.001 | |||
| Undifferentiated/poor | 644 (62.1) | 191 (78.28) | 453 (57.12) | |
| Well/moderate | 323 (31.15) | 42 (17.21) | 281 (35.44) | |
| Unknown | 70 (6.75) | 11 (4.51) | 59 (7.44) | |
| Outcome | <0.001 | |||
| Alive | 577 (55.64) | 167 (68.44) | 410 (51.7) | |
| Dead | 460 (44.36) | 77 (31.56) | 383 (48.3) | |
Abbreviation: IQR=interquartile range
aData are presented as No. (Percentage) of patients.
bP value of the Chi-square test or Wilcoxon-Mann-Whitney test comparing young and elderly groups