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Table 3 Summary of construction site-initiateda clusters based on the scale of construction projectsb

From: Construction sites as an important driver of dengue transmission: implications for disease control

 

2013

2014

2015

2016

Scale of construction site

Large

Small

Large

Small

Large

Small

Large

Small

12

18

15

40

13

18

17

11

Cluster sizea

≥10

< 10

≥10

< 10

≥10

< 10

≥10

< 10

≥10

< 10

≥10

< 10

≥10

< 10

≥10

< 10

No. of clusters

9

3

12

6

6

9

16

24

2

11

4

14

4

13

4

7

Odds ratiob (95% CI)

1.5 (0.29–7.68)

1.0 (0.30–3.36)

0.64 (0.10–4.14)

0.54 (0.10–2.84)

  1. aConstruction site-initiated clusters are those that notified the first case among construction site workers
  2. bConstructions sites costing ten million Singapore dollars and above were classified as large scale projects
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BMC Infectious Diseases

ISSN: 1471-2334

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