Table 2.
Bone lymphoma incidence trends by demographic and tumor characteristics (diagnosed 1975–2016).
| Characteristic | Overall, Mean APC, % (95% CI) | Period 1 |
Period 2 |
||
|---|---|---|---|---|---|
| Years | APC, % (95% CI) | Years | APC, % (95% CI) | ||
| Overall | 1.2 (0.8 to 1.6) | 1975–2009 | 1.5 (1.3 to 1.8) | 2009–2016 | −0.2 (−2.3 to 1.8) |
| Age, y | |||||
| 0–19 | 1 (−0.3 to 2.3) | 1975–1979 | 8.1 (−5.0 to 23.0) | 1979–2016 | 0.3 (−0.1 to 0.7) |
| 20–39 | 0.6 (−0.4 to 1.6) | 1975–2010 | 1.2 (0.7 to 1.7) | 2010–2016 | −3.0 (−8.9 to 3.3) |
| 40–59 | 1.7 (1.1 to 2.4) | 1975–1999 | 2.6 (1.7 to 3.5) | 1999–2016 | 0.5 (−0.5 to 1.5) |
| ≥60 | 1.6 (1.0 to 2.3) | 1975–2010 | 2.0 (1.6 to 2.4) | 2010–2016 | 0.5 (−4.5 to 3.7) |
| Sex | |||||
| Male | 1.5 (0.9 to 2.0) | 1975–1994 | 2.1 (1.1 to 3.0) | 1994–2016 | 1.0 (0.4 to 1.5) |
| Female | 1.2 (0.7 to 1.6) | 1975–2005 | 1.5 (1.2 to 1.9) | 2005–2016 | 0.1 (−1.2 to 1.5) |
| Race | |||||
| White | 1.2 (0.8 to 1.7) | 1975–2010 | 1.6 (1.4 to 1.8) | 2010–2016 | −0.9 (−3.4 to 1.8) |
| Black | 1.9 (0.8 to 3.1) | 1975–2010 | 2.6 (1.9 to 3.3) | 2010–2016 | −1.8 (−8.1 to 5.0) |
| Others | 0.4 (−0.8 to 1.7) | 1975–2010 | −0.2 (−0.1 to 0.7) | 2010–2016 | 4.1 (−3.3 to 12.0) |
| Unknown | NA | NA | NA | NA | NA |
| SEER Historic Stage A | |||||
| Localized | 0.7 (0.0 to 1.4) | 1975–1995 | 1.0 (−0.1 to 2.1) | 1995–2015 | 0.3 (−0.5 to 1.3) |
| Regional | 0.7 (−0.4 to 1.9) | 1975–2013 | 0.6 (0.3 to 0.8) | 2013–2015 | 4.2 (−17.0 to 30.9) |
| Distant | 3.1 (2.2 to 4.0) | 1975–2010 | 3.4 (2.9 to 4.0) | 2010–2015 | 0.5 (−5.4 to 6.8) |
| Unknown | NA | NA | NA | NA | NA |
| Tumor Location | |||||
| Appendicular | 0.5 (0.1 to 1.0) | 1975–1995 | 1.1 (0.3 to 1.8) | 1995–2016 | 0.0 (−0.6 to 0.6) |
| Axial | 1.7 (1.1 to 2.3) | 1975–2010 | 2.3 (2.0 to 2.7) | 2010–2016 | −1.8 (−5.2 to 1.7) |
| Unknown | NA | NA | NA | NA | NA |
| Histologic Type | |||||
| DLBCL | 2.9 (1.4 to 4.4) | 1975–2009 | 4.3 (3.1 to 5.5) | 2009–2016 | −3.7 (−10.3 to 3.4) |
| Other NPL | 7.6 (5.6 to9.6) | 1975–1991 | 15.1 (9.9 to 20.6) | 1991–2016 | 3.1 (2.1 to 4.0) |
| Others and unclassified | NA | NA | NA | NA | NA |
Abbreviations: APC, annual percent change; CI, confidence interval; NA, not applicable; DLBCL, diffuse large B-cell lymphomas; NPL, non-Hodgkin’s lymphoma; SEER, Surveillance, Epidemiology, and End Results.