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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

CategoriesYearCluster time frame (start date to end date)Observed cases
(n)
Expected cases (n)RRLLRP
PTB20052005-1-1 to 2005-8-3123,97817,3721.411181.73< 0.001
PTB20062006-1-1 to 2006-6-3016,38613,0151.27418.54< 0.001
PTB20072007-1-1 to 2007-6-3017,33113,1141.34639.52< 0.001
PTB20082008-1-1 to 2008-5-3114,65611,0871.33538.42< 0.001
PTB20092009-1-1 to 2009-4-3011,05588081.26271.75< 0.001
PTB20102010-1-1 to 2010-1-31299822881.31100.96< 0.001
PTB20112011-1-1 to 2011-1-31302223011.32103.31< 0.001
PTB20122012-1-1 to 2012-5-3113,59411,3721.20210.77< 0.001
PTB20132013-1-1 to 2013-2-28548744391.24116.33< 0.001
PTB20142014-1-1 to 2014-1-31299723461.2883.53< 0.001
PTB20152015-1-1 to 2015-1-31293823591.2566.12< 0.001
PTB20162016-1-1 to 2016-1-31276123741.1630.21< 0.001
PTB20172017-5-1 to 2017-6-30502047101.0710.14< 0.001
PTB20182018-1-1 to 2018-1-31300424031.2570.12< 0.001
PTB2005–20182005-1-1 to 2006-8-3153,81443,6011.271268.18< 0.001
SSP-TB2005–20182008-1-1 to 2011-10-3145,94135,5131.451988.7< 0.001
SSN-TB2005–20182013-1-1 to 2017-2-2869,53853,0611.523494.3< 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