TABLE 2.

Time trends in overall colorectal cancer mortality rate according to sex and income

Annual income, $	Time period	APC (P)	Pairwise comparisons	P for pairwise comparisons*
				Coincident	Parallel
Men
All	1985–2009	−0.41 (0.48)
<47,000 (low)	1985–2009	+0.95 (0.03)	Low versus high	<0.01	0.01
47,000 to 85,000 (average)	1985–2009	−0.44 (0.19)	Low versus average	<0.01	<0.01
>85,000 (high)	1985–2009	−1.83 (0.03)	Average versus high	0.04	0.15
Women
All	1985–2009	−0.24 (0.37)
<47,000 (low)	1985–1992	+8.07 (0.01)	Low versus high	0.01	0.02
	1992–2009	+0.04 (0.94)
47,000 to 85,000 (average)	1985–2009	−0.63 (0.05)	Low versus average	<0.01	<0.01
>85,000 (high)	1985–2009	−1.86 (0.07)	Average versus high	0.38	0.20

^*The test of coincidence assesses whether two Joinpoint regression functions are identical and the test of parallelism assesses whether the two regression mean functions are parallel