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Table 2 The cluster of malaria cases detected using the purely spatial clustering

From: Spatial, temporal, and spatiotemporal analysis of malaria in Hubei Province, China from 2004–2011

Year

Type

N

Coordinates/Radius

Observed cases

Expected cases

RR

LLR

p-value

2004

A

5

32.1727 N,112.2313E/53.23 km

1917

167.04

39.03

3785.83

0.00

 

B

5

31.3004 N,113.6210E/45.28 km

288

150.53

2.02

53.25

0.00

2005

A

13

32.0882 N,112.7601E/119.54 km

1280

254.78

27.13

1673.24

0.00

2006

A

10

32.0882 N,112.7601E/108.22 km

1476

245.29

33.44

2185.75

0.00

2007

A

13

32.0882 N,112.7601E/119.54 km

1509

290.03

35.40

2085.96

0.00

2008

A

10

31.8849 N,113.2816E/103.99 km

864

160.20

24.28

1153.57

0.00

2009

A

13

32.0882 N,112,7601E/119.54 km

514

115.20

15.12

564.95

0.00

 

B

4

30.9408 N,114.0040E/32.82 km

61

27.37

2.35

16.13

0.00

2010

A

10

31.8849 N, 113.2816 E/103.99 km

259

58.88

11.12

262.21

0.00

 

B

1

30.7392 N,111.2928E/0.00 km

13

2.75

4.86

10.08

0.00

2011

A

11

32.0882 N,112.7601E/116.40 km

70

11.94

39.90

104.62

0.00

  1. Type: A: the most likely cluster; B: secondary cluster.
  2. N: the cluster number of county was identified by Kulldorff’s spatial scan.
  3. RR: Relative risk; LLR: Log likelihood ratio.