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Table 3 The clusters of HFMD in Beijing, China, 2009–2014 by Spatial-temporal Scan a

From: Detecting spatial-temporal cluster of hand foot and mouth disease in Beijing, China, 2009-2014

Year Spatial radius (5–20 km) Date of cluster Hotspot districts Number of cases Expected cases Relative risk Log likelihood ratio P-value
2009 5 km 17–23 May FT 179 20 9.02 233.96 <0.001
10 km 17–23 May FT 229 26 8.78 293.75 <0.001
15 km 17–23 May FT 229 26 8.78 293.75 <0.001
20 km 18–24 May FT, FS, DX 296 47 6.31 294.81 <0.001
2010 5 km 24–30 Apr FT 241 37 6.52 247.3 <0.001
10 km 12–18 June FT, DX 478 74 6.48 487.07 <0.001
15 km 21–27 June FT, DX, TZ, CY 578 93 6.30 574.67 <0.001
20 km 12–18 June FT, DX, TZ, CY 808 157 5.21 676.09 <0.001
2011 5 km 21–27 June FT 212 27 7.99 254.53 <0.001
10 km 19–25 June FT, SJS 315 50 6.34 315.12 <0.001
15 km 18–24 June FT, SJS, FS 382 68 5.68 346.92 <0.001
20 km 18–24 June FT, SJS, FS, DX 520 94 5.62 467.43 <0.001
2012 5 km 1–7 June DX 168 18 9.50 227.58 <0.001
10 km 23–29 May DX, FT, CY 510 90 5.74 467.79 <0.001
15 km 23–29 May DX, FT, FS, CY 695 131 5.38 599.01 <0.001
20 km 23–29 May DX, FT, CY, TZ 851 173 5.00 681.99 <0.001
2013 5 km 1–7 July DX, 139 16 8.87 179.86 <0.001
10 km 1–7 July DX, FT 441 89 4.99 354.06 <0.001
15 km 1–7 July DX, FT, SJS, HD, FS 811 172 4.79 623.15 <0.001
20 km 1–7 July DX, FT, DC, XC, CY, TZ 1240 319 4.00 774.89 <0.001
2014 5 km 10–16 June DX 256 22 11.46 390.01 <0.001
10 km 10–16 June DX, FT, FS 368 38 9.63 502.59 <0.001
15 km 24–30 May DX, FT, FS 480 59 8.15 584.04 <0.001
20 km 21–27 June DX, FT, DC, XC, CY, TZ 1159 320 3.68 659.01 <0.001
  1. aThe maximum temporal cluster size was set to 7 days