Table 6.
Observed survival data by location for 10,833 patients with gastrointestinal stromal tumors from the Surveillance, Epidemiology, and End Results (SEER) database 2000–2018.
| Location | Observed Survival, % (95 Confidence Interval) | ||||
|---|---|---|---|---|---|
| 1-Year | 2-Year | 3-Year | 4-Year | 5-Year | |
| Esophagus # | 79.4 (65.1–88.3) | 79.4 (65.1–88.3) | 74.6 (59.6–84.8) | 74.6 (59.6–84.8) | 63 (46.4–75.8) |
| Stomach | 92.5 (91.7–93.1) | 87.7 (86.8–88.6) | 82.3 (81.2–83.4) | 77.7 (76.4–78.8) | 73.2 (71.9–74.5) |
| Small Intestine | 94.2 (93.2–95) | 89.8 (88.6–90.9) | 84.6 (83.1–86) | 79.8 (78.1–81.4) | 75.2 (73.3–76.9) |
| Cecum # | 83.8 (65.2–92.9) | 76.8 (57.3–88.2) | 72.8 (52.6–85.4) | 72.8 (52.6–85.4) | 72.8 (52.6–85.4) |
| Appendix # | + | + | 80 (20.4–96.9) | 60 (12.6–88.2)) | 40 (5.2–75.3)) |
| Ascending Colon # | 69 (48.8–82.5) | 56.4 (35.9–72.7) | 51.7 (31.2–68.9) | 51.7 (31.2–68.9) | 41.4 (21.6–60.2) |
| Hepatic Flexure # | 84.4 (50.4–95.9) | 67.5 (34.6–86.5) | 67.5 (34.6–86.5) | 67.5 (34.6–86.5) | 54 (20.3–78.9) |
| Transverse Colon # | 89.5 (641–97.3) | 89.5 (641–97.3) | 76.7 (48.8–90.6) | 76.7 (48.8–90.6) | 76.7 (48.8–90.6) |
| Splenic Flexure # | + | 66.7 (5.4–94.5) | 66.7 (5.4–94.5) | 66.7 (5.4–94.5) | 66.7 (5.4–94.5) |
| Descending Colon # | 86.3 (67.5–94.6) | 78.6 (58.2–89.8) | 74.2 (53.1–86.9) | 69.6 (47.8–83.7) | 64.6 (42.3–80.1) |
| Sigmoid Colon # | 91 (77.8–96.5) | 79 (63.5–88.5) | 73.8 (57.6–84.6) | 70.9 (54.2–82.4) | 67.9 (51–80.1) |
| Large Intestine, NOS # | 78.9 (58.9–89.9) | 78.9 (58.9–89.9) | 71 (50.2–84.4) | 62.7 (41.4–78) | 50.1 (29.7–67.5) |
| Rectosigmoid Junction # |
78.6 (47.2–92.5) | 78.6 (47.2–92.5) | 78.6 (47.2–92.5) | 78.6 (47.2–92.5) | 69.8 (37.8–87.6) |
| Rectum # | 93.3 (89.4–95.8) | 89.8 (85.3–93) | 87.5 (82.6–91.1) | 84.5 (79.2–88.6) | 78.7 (72.6–83.6) |
| Anus, Anal Canal, AD # | + | 88.9 (43.3–98.4) & |
88.9 (43.3–98.4) & |
88.9 (43.3–98.4) & |
88.9 (43.3–98.4) & |
Abbreviations: NOS, Not otherwise specified; AD, Anoderm; +, statistics could not be calculated; &, width of the confidence interval is more than that if normal approximation is applied; # = Due to the small sample size, the survival data from these locations should be interpreted cautiously.