. 2014 Mar 1;24(3):556–567. doi: 10.1089/thy.2013.0284

Table 5.

Trends in the Proportion of Incidence Cases by Tumor Size, 1997–2008

	Annual percentage change
	Tumor size ≤1 cm	Tumor size ≤2 cm	Tumor size >4 cm
Population
SES-low	2.0^*	2.0^*	−3.1^*
SES-high	2.0^*	2.0^*	−3.1^*
Non-Hispanic white
SES-low	4.5^*	2.6^*	−3.9^*
SES-high	4.5^*	2.6^*	−3.9^*
Non-Hispanic black
SES-low	4.0^a	2.7	−3.7^*
SES-high	6.2^a*	2.7	−3.7^*
Hispanic
SES-low	4.7^*	1.5^*	−0.2
SES-high	4.7^*	1.5^*	−0.2

Table reflects results from joinpoint analyses examining trends in the proportion of incidence by tumor size, based on available data. For example, the first column of data refers to changes in the proportion of tumors size ≤1 cm relative to all other tumor sizes diagnosed from 1997 to 2008. In all population and racial/ethnic subgroup comparisons, the annual percentage change (APC) was the same in the low and high SES groups (i.e., joinpoint regression lines were parallel). The years 1995 and 1996 had to be excluded from these analyses due to too few cases.

^{^a}

The year 1997 had to be additionally excluded from these analyses due to too few cases.

^{^*}

Statistically significant APC at p<0.05 in the joinpoint regression analyses.