Table 2. Potentially Missed All-Sites Cancer Cases by Stage at Diagnosis and Period, 2020-2021a.
| Stage at diagnosis and period | Observed rateb | Expected rate (95% PI) | Relative difference (95% PI), % | Potential missed cases (95% PI) |
|---|---|---|---|---|
| All stages | ||||
| 2020 | 408.0 | 450.4 (445.7 to 455.8) | −9.4 (−10.5 to −8.5) | 116 350 (103 551 to 31 117) |
| 2021 | 438.3 | 450.4 (444.7 to 456.3) | −2.7 (−3.9 to −1.4) | 33 226 (17 513 to 49 463) |
| Combined | 423.2 | 450.4 (446.1 to 455.4) | −6.0 (−7.1 to −5.1) | 149 577 (126 059 to 176 970) |
| Early stagec | ||||
| 2020 | 180.4 | 204.8 (201.1 to 208.6) | −11.9 (−13.5 to −10.3) | 67 109 (56 808 to 77 227) |
| 2021 | 202.7 | 205.3 (200.4 to 209.6) | −1.3 (−3.3 to 1.2) | 7132 (−6385 to 18 878) |
| Combined | 191.6 | 205.1 (201.5 to 208.2) | −6.6 (−8.0 to −4.9) | 74 151 (54 390 to 91 470) |
| Late staged | ||||
| 2020 | 188.0 | 200.9 (196.8 to 204.8) | −6.4 (−8.2 to −4.5) | 35 375 (24 158 to 46 031) |
| 2021 | 197.5 | 200.3 (195.9 to 205.1) | −1.4 (−3.7 to 0.8) | 7770 (−4300 to 20 895) |
| Combined | 192.8 | 200.6 (197.2 to 204.6) | −3.9 (−5.8 to −2.3) | 43 145 (24 534 to 64 767) |
Abbreviation: PI, prediction interval.
a
Data from the National Cancer Institute’s Surveillance, Epidemiology, and End Results 22 (SEER-22) Registries Database, November 2023 submission for 2000-2021.6
b
Rates given per 100 000 people in the population and age-adjusted to the 2000 US standard population.
c
Early stage at diagnosis defined as localized stage only.
d
Late stage at diagnosis defined as regional or distant stage.