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Table 1 Characteristics of transmission periods and hotspots

From: Spatio-temporal variation of malaria hotspots in Central Senegal, 2008–2012

Period: (cumulative inca), dates, duration

Hotspot status

Number of villages

Cumulative incidence rate a

SMCb

(%)

Weekly average rainfall

(mm/week)

(SDc)

Dominant vegetation typed

(% village)

2008 LTP (0.93)

01/01/2008 -

30/06/2008 -

26 weeks

Hotspot

19

9.82

0 (0.00%)

1.9 (0.99)

Mixed (63.16)

Non-Hotspot

556

0.44

0 (0.00%)

1.6 (0.77)

Mixed (59.35)

2008–2009 HTP (14.88)

01/07/2008 –

12/01/2009 –

28 weeks

Hotspot

128

33.53

28 (21.87%)

26.41 (1.78)

Mixed (88.28)

Non-Hotspot

447

5.46

47 (10.51%)

22.59 (2.46)

Mixed (51.23)

2009 LTP (0.88)

13/01/2009 –

03/08/2009 –

29 weeks

Hotspot

27

10.66

0 (0.00%)

10.54 (2.02)

Mixed (96.3)

Non-Hotspot

548

0.5

0 (0.00%)

8.26 (1.57)

Mixed (83.58)

2009–2010 HTP (7.53)

04/08/2009 –

15/02/2010 –

28 weeks

Hotspot

62

27.04

23 (37.1%)

20.61 (1.79)

Mixed (93.55)

Non-Hotspot

513

5.17

201 (39.18%)

18.21 (2.24)

Mixed (83.04)

2010 LTP (0.83)

16/02/2010 –

12/07/2010 –

21 weeks

Hotspot

22

12.61

0 (0.00%)

2.43 (1.46)

Mixed (68.18)

Non-Hotspot

553

0.41

0 (0.00%)

3.39 (1.58)

Mixed (62.03)

2010–2011 HTP (29.9)

13/07/2010 –

24/01/2011 –

28 weeks

Hotspot

142

80.26

77 (54.22%)

23.4 (1.49)

Mixed (57.04)

Non-Hotspot

433

19.61

294 (67.9%)

22.95 (2.98)

Mixed (63.97)

2011 LTP (2.73)

25/01/2011 –

22/08/2011 –

30 weeks

Hotspot

43

12.69

0 (0.00%)

8.39 (1.25)

Mixed (72.09)

Non-Hotspot

532

1.57

0 (0.00%)

9.52 (0.83)

Grasslands (40.79)

2011–2012 HTP (14.62)

23/08/2011 –

09/01/2012 –

20 weeks

Hotspot

105

34.35

0 (0.00%)

18.52 (0.51)

Grasslands (35.24)

Non-Hotspot

470

9.59

0 (0.00%)

18.93 (1.53)

Mixed (41.70)

2012 LTP (1.66)

10/01/2012 –

09/07/2012 –

26 weeks

Hotspot

10

19.16

0 (0.00%)

4.93 (0.69)

Mixed (60)

Non-Hotspot

565

1.24

0 (0.00%)

3.61 (0.8)

Mixed (42.83)

2012 HTP (38.1)

10/07/2012 –

31/12/2012 –

24 weeks

Hotspot

147

119.24

0 (0.00%)

31.71 (2.36)

Grasslands (59.86)

Non-Hotspot

428

25.74

0 (0.00%)

30.49 (1.93)

Mixed (51.17)

  1. High Transmission Periods (HTP) and Low Transmission Periods (LTP) with cumulative incidence rate, start and end dates, and duration (in weeks); hotspot status of villages (hotspot or non-hotspot); number of hotspot and non-hotspot villages; cumulative incidence rate in hotspot and non-hotspot villages; number and percentage of hotspot and non-hotspot villages that received seasonal malaria chemoprevention (SMC); weekly average rainfall and standard deviation in hotspot and non-hotspot villages; dominant vegetation type (open shrublands, grasslands, croplands, mixed vegetation) in hotspot and non-hotspot villages for each period
  2. a Cumulative incidence rate (cases/100,000 person-weeks)
  3. b Number and percentage of villages that received SMC (seasonal malaria chemoprevention)
  4. c Standard deviation
  5. d Dominant vegetation type for each period