Analyzing 2000–2010 Childhood Age-Adjusted Cancer Rates in Florida: A Spatial Clustering Approach

Figures & data

Figure 1. Visualization of the (a) calculated log-transformed age-adjusted caner rates with upper 0.13% extreme observations, and (b) 983 ZCTAs in the map of Florida with a few highlighted areas that correspond to ZCTAs in the left panel.

Table 1. Posterior distributions and estimates of the number of clusters d for the 11 years

d	2000	2001	2002	2003	2004	2005	2006	2007	2008	2009	2010
3				0.246
4				0.349			0.007
5				0.347			0.298
6				0.059	0.057		0.167			0.323
7					0.055		0.487			0.417
8					0.197		0.038			0.257
9	0.225				0.171		0.003	0.231		0.003
10	0.517		0.161		0.267			0.521	0.004		0.219
11	0.251		0.118		0.199	0.037		0.122	0.063		0.595
12	0.006	0.193	0.477		0.048	0.194		0.113	0.161		0.171
13		0.514	0.184		0.006	0.386		0.013	0.533		0.014
14		0.229	0.050			0.309			0.194		0.001
15		0.055	0.011			0.073			0.044
16		0.007				0.001			0.001
17		0.002
	10	13	12	4	10	13	7	10	13	7	11

NOTE: A bold number indicates the highest posterior probability.

Figure 2. Posterior mean and 95% credible interval of the cluster mean age-adjusted rates (y-axis) versus cluster labels r = 1, 2, …, d (x-axis) for the 11 years.

Figure 3. Map of the central clustering configuration with clustering labels assigned by descending order of the posterior mean of the cluster mean estimates for the 11 years.

Table 2. Posterior mean (2.5%, 97.5%th quantile) of the scaling parameter λ_k for k = 1 (intercept), k = 2 (percentage of male population), k = 3 (percentage of white population), and κ

	2000	2001	2002	2003	2004	2005	2006	2007	2008	2009	2010
λ1	785.9	210.2	228.0	431.9	230.9	242.2	157.4	299.4	234.2	508.5	284.2
	(357.4,	(101.8,	(108.2,	(131.1,	(97.0,	(123.4,	(60.5,	(136.8,	(110.3,	(205.8,	(131.1,
	1760.2)	439.8)	486.7)	1200.6)	501.6)	474.9)	373.8)	664.9)	469.5)	1179.1)	599.1)
λ2	0.010	0.011	0.009	0.009	0.009	0.009	0.010	0.010	0.010	0.009	0.011
	(0.002,	(0.002,	(0.002,	(0.002,	(0.002,	(0.002,	(0.002,	(0.002,	(0.002,	(0.002,	(0.002,
	0.041)	0.040)	0.036)	0.039)	0.040)	0.036)	0.041)	0.039)	0.043)	0.042)	0.041)
λ3	0.008	0.009	0.009	0.008	0.011	0.008	0.010	0.009	0.009	0.009	0.011
	(0.002,	(0.002,	(0.002,	(0.002,	(0.002,	(0.002,	(0.002,	(0.002,	(0.002,	(0.002,	(0.002,
	0.031)	0.037)	0.036)	0.033)	0.051)	0.030)	0.039)	0.036)	0.035)	0.038)	0.040)
κ	0.127	0.097	0.102	0.261	0.130	0.096	0.189	0.129	0.096	0.174	0.112
	(0.015,	(0.011,	(0.013,	(0.039,	(0.016,	(0.012,	(0.025,	(0.016,	(0.012,	(0.022,	(0.013,
	0.336)	0.262)	0.278)	0.614)	0.345)	0.266)	0.470)	0.350)	0.264)	0.424)	0.307)