Table 1
Characteristics of the patients with gastric cancer (1993–2000)
| Characteristics | No. (%) | No. of deaths (%)† | Percentage of deaths |
|---|---|---|---|
| Total | 326 | 235 | 72.1 |
| Stage at diagnosis | |||
| I | 22 (6.7) | 13 (5.5) | 59.1 |
| II | 60 (18.4) | 35 (14.9) | 58.3 |
| III | 53 (16.3) | 37 (15.8) | 69.8 |
| IV | 191 (58.6) | 150 (63.8) | 78.5 |
| Age at diagnosis (years) | |||
| <61 | 87 (26.7) | 52 (22.1) | 59.7 |
| 61–70 | 122 (37.4) | 83 (35.3) | 68.0 |
| >70 | 117 (35.9) | 100 (42.6) | 85.5 |
| Year of diagnosis | |||
| Before 1996 | 76 (23.3) | 55 (23.4) | 72.4 |
| 1996–1997 | 109 (33.4) | 81 (34.5) | 74.3 |
| After 1997 | 141 (43.3) | 99 (42.1) | 70.2 |
| Sex | |||
| Male | 224 (68.7) | 155 (65.9) | 69.2 |
| Female | 102 (31.3) | 80 (34.1) | 78.4 |
[i] †Deaths from all causes
Table 2
Statistical crude ratios of patients who died from causes other than gastric cancer estimated using the flexible parametric cure model in the presence of competing risks by stage and age at diagnosis and sex
| Stage at | Age at diagnosis | Ratio (95% CI) | |
|---|---|---|---|
| diagnosis | (years) | Men | Women |
| I and II | 50 | 0.69 (0.46, 0.84) | 0.63 (0.28, 0.80) |
| 60 | 0.48 (0.31, 0.63) | 0.45 (0.24, 0.64) | |
| 70 | 0.40 (0.18, 0.61) | 0.25 (0.08, 0.45) | |
| 80 | 0.08 (0.02, 0.26) | 0.05 (0.01, 0.27) | |
| III | 50 | 0.49 (0.25, 0.69) | 0.20 (0.01, 0.54) |
| 60 | 0.45 (0.24, 0.64) | 0.17 (0.08, 0.29) | |
| 70 | 0.28 (0.14, 0.43) | 0.11 (0.04, 0.25) | |
| 80 | 0.07 (0.01, 0.17) | 0.06 (0.01, 0.25) | |
| IV | 50 | 0.32 (0.19, 0.45) | 0.27 (0.13, 0.42) |
| 60 | 0.22 (0.14, 0.31) | 0.12 (0.03, 0.28) | |
| 70 | 0.14 (0.08, 0.22) | 0.10 (0.02, 0.19) | |
| 80 | 0.04 (0.01, 0.14) | 0.03 (0.01, 0.16) | |
Figure 1
Graph of predicted 1-, 3-, and 5-year vital status (left) and crude ratios of men who will die from causes other than gastric cancer (right) by age at diagnosis (years)
Figure 2. A
Net probability. B. Crude probability. C. Crude probability further partitioned by predicted prognosis. D. Conditional probabilities of death from competing causes