TABLE 4.
Joinpoint regression analysis for trends in incidence rate of thyroid cancer by SEER summary stage
| Categories | Trend1 | Trend2 | AAPC (95% CI) | ||
|---|---|---|---|---|---|
| Years | APC (95% CI) | Years | APC (95% CI) | ||
| Men | |||||
| Localized | 2006‐2012 | 19.4 (11.4 to 27.9)* | 2012‐2016 | −15.7 (−24.2 to −6.3)* | 3.9 (−1.0 to 8.9) |
| Regional | 2006‐2012 | 23.3 (15.1 to 32.1)* | 2012‐2016 | −11.8 (−19.8 to −3.0)* | 7.8 (3.1 to 12.8)* |
| Distant | 2006‐2010 | 6.8 (−5.2 to 20.3) | 2010‐2016 | −10.1 (−15.7 to −4.2)* | −3.7 (−8.3 to 1.1) |
| Unknown | 2006‐2009 | 14.1 (−3.9 to 35.4) | 2009‐2016 | −6.0 (−10.0 to −1.7)* | −0.3 (−5.0 to 4.6) |
| Women | |||||
| Localized | 2006‐2012 | 14.7 (8.7 to 20.9)* | 2012‐2016 | −19.9 (−27.3 to −11.8)* | −0.7 (−4.6 to 3.4) |
| Regional | 2006‐2012 | 17.6 (10.5 to 25.0)* | 2012‐2016 | −15.9 (−24.0 to −7.0)* | 2.8 (−1.6 to 7.4) |
| Distant | 2006‐2010 | 9.2 (−2.0 to 21.7) | 2010‐2016 | −15.1(−20.5 to −9.2)* | −6.1 (−10.4 to −1.5)* |
| Unknown | 2006‐2009 | 7.5 (−7.6 to 25.1) | 2009‐2016 | −9.9 (−14.0 to −5.7)* | −5.0 (−9.1 to −0.7)* |
The age‐standardized incidence rates are calculated as incidence cases per 100,000 people using Segi’s world standard population. SEER summary stage was classified into localized stage, regional stage, distant stage and unknown stage and it has been collected nationally since 2006.
Abbreviations: 95% CI, 95% Confidence intervalAAPC, Average annual percent change; APC, Annual percent change.
*
p‐value<0.05