Skip to main content

Table 2 Space-time PTB clusters in Zhaotong in the period 2011/1/1–2015/12/31

From: Space-time clustering and associated risk factors of pulmonary tuberculosis in southwest China

Cluster type

Time period

Centre and radius (km)

Areas covered (n)

Observed cases (n)

Expected cases (n)

RRa

P-value

Most likely cluster

2013/3/1–2015/8/31

Wufeng 45.51

29

5994

3418

2.01

< 0.001

Secondary cluster 1

2014/4/1–2014/6/30

Fenghuang 7.06

3

155

45

3.47

< 0.001

Secondary cluster 2

2011/2/1–2013/7/31

Dousha 13.76

3

362

214

1.70

< 0.001

Secondary cluster 3

2011/3/1–2012/10/31

Cuihua 0

1

119

58

2.06

< 0.001

Secondary cluster 4

2015/12/1–2015/12/31

Zhongming 9.04

2

23

6

3.91

0.030

Secondary cluster 5

2012/2/1–2012/5/31

Xiluodu 17.84

4

81

45

1.82

0.162

Secondary cluster 6

2012/1/1–2012/7/31

Baihetan 0

1

86

51

1.68

0.704

  1. aRelative risk