Disparities in Spatial Prevalence of Feline Retroviruses due to Data Aggregation: A Case of the Modifiable Areal Unit Problem

Table 2

Moran’s 𝐼 statistics based on empirical Bayesian smoothed seroprevalence of FIV and FeLV infections by spatial aggregation level.

Infection	Areal unit	𝐼	𝐸^a	Var^b	SD^c	𝑃 value
FIV	Postal code	0.09	−0.002	0.001	3.30	<0.01
	County	0.15	−0.003	0.002	3.82	<0.01
	State	−0.06	−0.021	0.409	−0.37	0.66
FeLV	Postal code	0.12	−0.002	0.001	4.05	<0.01
	County	0.15	−0.003	0.002	3.53	<0.01
	State	0.00	−0.021	0.011	0.18	0.42

aExpected value of Moran's 𝐼 under the null hypothesis of no spatial autocorrelation; ^bvariance; ^cstandard Deviation.