Spatiotemporal Drivers of the African Swine Fever Epidemic in Lao PDR
Table 3
Association between the date of reporting (epidemic day) of African swine fever (ASF) cases in the 2019 Laos outbreak and protected (natural) area, pig production, and poverty (Spearman rank correlation, r).
Risk factors
Min
Max
Median
IQR
Epidemic day
r
Distance to the nearest protected area
0
0.43
0.02
0.04
0.057
0.486
The number of protected areas within 10 km of the case location
0
4
2.00
1
−0.253
0.020
Land area (km2) of the protected area within 10 km of the case location
0
315
136.65
181
−0.034
0.677
The proportion of the protected area within 10 km of the case location
0
100
43.53
58
−0.041
0.616
Share of pig ownership (%) in the village at the case location
0
100
57.89
47
−0.253
0.002
The average share of pig ownership (%) within 10 km of the case location
1
93
57.59
26
−0.225
0.005
The number of pigs
0
9405
2359
2134
−0.008
0.925
The number of roads
0
12
3
3
−0.237
0.003
Length of roads
0
84
28.76
21
−0.242
0.003
% Population living below the poverty line at the case location
1
82
24.38
22
−0.166
0.042
The average % population living below the poverty line within 10 km
7
73
23.99
13
−0.272
<0.001
The number of people below the poverty line
7
1957
153.10
226
−0.125
0.125
The average number of people below the poverty line
