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Table 2 Purely temporal clusters identified by different window sizes, study period March-2008 to March-2018

From: Spatio-temporal epidemiology of the tuberculosis incidence rate in Iran 2008 to 2018

Type of disease Window size Time frame Number of cases Expected cases Annual cases / 100,000 OE RR LLR P-value
Total TB Areas with high rates         
25% 2012–2013 22,073 20,425.02 14.2 1.08 1.10 81.73 0.001
35% 2011–2013 32,712 30,226.28 14.2 1.08 1.12 143.69 0.001
50% 2010–2014 53,366 49,895.66 14.0 1.07 1.15 238.58 0.001
Areas with low rates         
25% 2017–2018 17,937 21,059.13 11.2 0.85 0.82 303.99 0.001
35% 2017–2018 17,937 21,059.13 11.2 0.85 0.82 303.99 0.001
50% 2017–2018 17,937 21,059.13 11.2 0.85 0.82 303.99 0.001
Smear Positive Pulmonary TB Areas with high rates         
25% 2011–2012 10,891 10,089.69 7.1 1.08 1.10 39 0.001
35% 2011–2013 16,277 15,113.59 7.1 1.08 1.11 63 0.001
50% 2010–2014 26,720 24,948.57 7.0 1.07 1.15 124.32 0.001
Areas with low rates         
25% 2017–2018 8984 10,529.88 5.6 0.85 0.82 148.99 0.001
35% 2016–2018 13,911 15,703.99 5.8 0.89 0.84 151.91 0.001
50% 2015–2018 18,886 20,809.17 5.9 0.91 0.85 152.72 0.001