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Table 1 Incidence rates (cases/100,000 person-years) of BD in Sichuan province, 2011–2019

From: Spatio-temporal analysis of bacillary dysentery in Sichuan province, China, 2011–2019

  2011 2012 2013 2014 2015 2016 2017 2018 2019
Annual incidence 16.13 12.96 11.60 8.76 7.31 6.85 6.65 5.79 6.17
Age (incidence)
 < 1 207.49 223.83 230.61 167.37 149.39 121.55 122.46 111.32 84.94
1~  134.99 98.52 96.42 78.15 63.50 63.45 59.85 59.33 47.00
2~  73.71 52.32 45.19 43.01 34.78 35.83 31.49 30.27 28.57
3~  52.08 38.01 39.72 28.90 24.60 25.68 22.58 15.69 18.47
4~  33.84 30.90 28.43 20.34 17.41 16.70 19.97 13.63 17.54
5~  27.97 24.43 23.88 20.27 14.19 16.76 13.98 15.50 12.09
6~  21.88 19.37 22.52 12.22 13.89 13.12 12.57 10.62 11.52
7~  17.18 11.76 10.84 7.19 7.47 5.67 4.93 4.60 9.28
8~  13.97 8.81 10.09 5.39 4.46 3.64 3.48 3.75 7.77
9~  13.95 13.38 14.86 8.74 8.19 7.61 6.17 7.06 6.04
10~  10.58 7.32 6.98 4.81 4.15 4.05 4.09 3.70 4.11
15~  6.74 6.04 5.17 3.78 3.01 3.95 3.20 2.80 4.21
20~  9.49 6.94 5.86 3.92 3.32 3.26 3.49 2.80 5.54
25~  13.94 10.31 8.47 6.33 5.37 4.79 5.41 4.46 3.73
30~  9.83 11.00 8.98 6.21 5.60 4.91 5.08 4.33 4.46
35~  7.85 6.44 5.04 3.86 2.59 2.13 2.58 1.90 2.13
40~  8.99 7.35 6.08 4.41 3.11 2.89 2.84 2.49 2.72
45~  13.18 7.29 5.22 3.91 3.34 3.05 3.03 2.56 2.72
50~  7.39 8.87 8.12 6.65 5.69 6.51 7.19 5.76 3.89
55~  10.88 8.45 6.64 4.69 3.32 2.74 2.48 2.14 3.59
60~  15.11 11.05 8.31 7.17 5.57 5.33 4.56 3.78 3.61
65~  13.65 12.15 10.18 8.11 6.37 5.56 4.89 4.10 4.30
70~  16.58 13.24 13.39 8.82 8.16 6.34 6.70 4.43 4.61
75~  14.86 13.61 13.46 8.66 8.12 7.37 6.75 6.39 8.28
80~  19.82 13.45 10.67 8.95 6.99 5.20 4.87 4.72 5.91
 ≥ 85 35.50 10.41 7.59 9.50 7.67 6.33 7.34 5.02 5.50
Sex (incidence)
Male 17.40 13.47 11.53 8.89 7.57 7.14 6.63 5.80 6.27
Female 14.82 12.43 11.69 8.64 7.06 6.56 6.67 5.78 6.07
Male-to-female ratio 1.21 1.12 1.02 1.05 1.05 1.10 1.01 1.02 1.05
Population classification (%)
Scattered children 34.68 35.27 38.97 40.08 41.31 39.87 39.32 40.35 33.99
School-children 8.97 8.91 9.68 8.66 9.07 9.98 9.30 9.92 12.98
Nursery children 3.27 2.89 3.12 3.25 3.16 4.45 4.02 4.70 5.50
Farmer 32.25 33.40 30.89 30.63 29.75 28.86 31.00 28.60 30.73
others 20.83 19.54 17.35 17.38 16.71 16.85 16.36 16.43 16.80