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Table 3 Retrospective analyses of space–time and spatial variation in temporal trend of Dengue incidence in Brazil Northeast, 2014–2017

From: Spatiotemporal dynamics, risk areas and social determinants of dengue in Northeastern Brazil, 2014–2017: an ecological study

a. Space–time
Cluster Time period States Radium (km) Number of municipalities Number of cases Annual rate/100 000 Relative risk P-value
1 2015–2016 Alagoas, Pernambuco, Paraíba, Rio Grande do Norte and Ceará 533.39 808 287 252 524.3 4.07 < 0.001
2 2015–2016 Bahia (Itabuna) 0.0 1 25 906 5882.8 27.56 < 0.001
3 2016–2017 Maranhão 51.35 2 2153 1049.8 4.69 < 0.001
4 2015–2015 Bahia and Piauí 59.38 4 1012 1092.7 4.87 < 0.001
b. Spatial variation in temporal trend
Cluster Inside time trend (%) Localization Radium (km) Number of municipalities Number of cases Annual rate/100 000 Relative risk P-value
1 10.53 Rio Grande do Norte and Ceará 155.93 82 101 814 466.3 2.35 0.001
2 84.89 Tocantins and Maranhão 287.79 41 8850 214.6 0.96 0.001
3 19.56 South of Bahia 288.43 65 38 094 434.6 2.01 0.001
4 2354.45 Agreste Pernambucano 11.76 2 662 351.2 1.57 0.001
5 192.11 South of Ceará 18.52 2 920 877.7 3.92 0.001
6 36.93 Ceará and Paraíba 28.82 6 5421 856.7 3.85 0.001
7 23.53 Pernambuco and Alagoas 32.32 14 6109 434.2 1.95 0.001
8 1365.01 West of Bahia 0.0 1 204 392.6 1.75 0.001
9 Inf Sergipe 0.0 1 2 256.3 0.007 0.001
10 45.23 Zona da mata of Pernambuco 13.59 3 1626 319.6 1.43 0.001
11 3.14 East of Pernambuco and Paraíba 52.02 25 21 042 346.3 1.57 0.001
12 89.79 Agreste Pernambucano 0.0 1 358 181.4 0.81 0.001
13 2.87 East of Pernambuco 45.90 15 13 000 204.4 0.91 0.001
14 28.12 Sertão of Paraíba 12.32 3 1106 725.3 3.24 0.001
15 128.66 Sergipe 0.0 1 85 71.5 0.32 0.001
16 52.06 Paraíba 0.0 1 238 136.15 0.61 0.001
17 42.88 Pernambuco 11.19 3 273 119.9 0.53 0.001
18 17.80 Bahia 0.0 1 783 294.6 1.31 0.001
19 5.02 Pernambuco 18.94 5 2842 155.2 0.69 0.001
20 40.71 Bahia 40.75 2 242 67.9 0.30 0.001
21 28.15 Alagoas 0.0 1 385 383.7 1.71 0.001
22 4.28 Paraíba and Pernambuco 29.07 5 2543 1502.5 7.77 0.001
23 43.77 Pernambuco 0.0 1 157 157.7 0.70 0.001
24 Inf Piauí 0.0 1 11 56.1 0.25 0.001
25 45.81 Alagoas 0.0 1 123 452.5 2.02 0.001
26 15.03 Piauí 117.04 30 488 40.2 0.18 0.001
27 19.66 Paraíba 0.0 1 327 248.4 1.11 0.001
28 25.48 Alagoas and Sergipe 25.48 4 722 213.0 0.95 0.001
  1. Inf Infinite