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Table 1 Temporal clustering of pulmonary tuberculosis cases in Yunnan, 2005–2018

From: The characteristics of spatial-temporal distribution and cluster of tuberculosis in Yunnan Province, China, 2005–2018

Categories

Year

Cluster time frame (start date to end date)

Observed cases

(n)

Expected cases (n)

RR

LLR

P

PTB

2005

2005-1-1 to 2005-8-31

23,978

17,372

1.41

1181.73

< 0.001

PTB

2006

2006-1-1 to 2006-6-30

16,386

13,015

1.27

418.54

< 0.001

PTB

2007

2007-1-1 to 2007-6-30

17,331

13,114

1.34

639.52

< 0.001

PTB

2008

2008-1-1 to 2008-5-31

14,656

11,087

1.33

538.42

< 0.001

PTB

2009

2009-1-1 to 2009-4-30

11,055

8808

1.26

271.75

< 0.001

PTB

2010

2010-1-1 to 2010-1-31

2998

2288

1.31

100.96

< 0.001

PTB

2011

2011-1-1 to 2011-1-31

3022

2301

1.32

103.31

< 0.001

PTB

2012

2012-1-1 to 2012-5-31

13,594

11,372

1.20

210.77

< 0.001

PTB

2013

2013-1-1 to 2013-2-28

5487

4439

1.24

116.33

< 0.001

PTB

2014

2014-1-1 to 2014-1-31

2997

2346

1.28

83.53

< 0.001

PTB

2015

2015-1-1 to 2015-1-31

2938

2359

1.25

66.12

< 0.001

PTB

2016

2016-1-1 to 2016-1-31

2761

2374

1.16

30.21

< 0.001

PTB

2017

2017-5-1 to 2017-6-30

5020

4710

1.07

10.14

< 0.001

PTB

2018

2018-1-1 to 2018-1-31

3004

2403

1.25

70.12

< 0.001

PTB

2005–2018

2005-1-1 to 2006-8-31

53,814

43,601

1.27

1268.18

< 0.001

SSP-TB

2005–2018

2008-1-1 to 2011-10-31

45,941

35,513

1.45

1988.7

< 0.001

SSN-TB

2005–2018

2013-1-1 to 2017-2-28

69,538

53,061

1.52

3494.3

< 0.001

  1. PTB Pulmonary tuberculosis, SSP-TB Sputum smear-positive tuberculosis, SSN-TB Sputum smear-negative tuberculosis, RR Relative risk, LLR Log-likelihood ratios