Geographical, temporal and racial disparities in late-stage prostate cancer incidence across Florida: A multiscale joinpoint regression analysis

Table 4 Impact of geographical scale on parameters of the joinpoint regression models and detection of racial disparities.

Geographical	AAPC		Onset year		Racial disparities
Units	WM	BM	WM	BM	H_o : Parallel	B_rr' statistic
State
Florida	-3.9	-4.4	1989	1988	NR	2
Metro vs Nonmetro
Urban counties	-4.0	-4.3	1989	1988	NR	1
Rural counties	-3.6	-5.1	1982	1982	NR	12
Counties
Miami-Dade	-5.2	-6.4	1982	1986	R	2
Duval	-3.0	-3.3	1989	1989	R	9
Hillsborough	-4.8	-7.0	1990	1988	R	6
Orange	-3.1	-3.0	1986	1992	R	16
Escambia	-4.2	-3.1	1989	1982	R	16
Alachua	-3.0	-3.3	1982	1988	R	6
Beale 3-6	-3.8	-3.7	1987	1987	R	7
Beale > 6	-2.6	-4.9	1991	1982	R	25

Results for white males (WM) and black males (BM) include: 1) the average annual percent change (AAPC) computed over the entire time series, 2) the onset year for the first significant decline in the proportion of late-stage diagnosis (i.e. APC negative and significantly different from zero), 3) the results of the test of parallelism using a significance level α = 0.05 (R = reject, NR = non reject), and 4) the value of the B_rr' statistic that measures the number of years where the 95% confidence intervals of APC for white and black males did not overlap (Equation 6).

ISSN: 1476-072X