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Table 1 Cumulative dengue cases, annual average dengue incidence, and Medical Officer of Health division-specific variables averaged across all years in the study period in Kalutara District, Sri Lanka, 2010–2019

From: Assessing the associations between Aedes larval indices and dengue risk in Kalutara district, Sri Lanka: a hierarchical time series analysis from 2010 to 2019

MOH division-specific characteristics

Long-term surveillance sites/MOH Division sites

Agalawatta

Bandaragama

Bulathsinhala

Horana

Ingiriya

Madurawala

Mathugama

Palindanuwara

Walallavita

Panadura

Cumulative dengue cases, n

1017

2549

1341

2822

1179

1079

3508

1173

1430

11,876

Annual average dengue incidence, n per 100,000

248

183

189

239

198

116

262

198

228

485

Premise Index, mean (range)

11.0 (0.9–24.6)

11.0 (1.6–63.3)

10.8 (1.9–24.0)

9.6(1.5–23.0)

10.8 (0.0–25.0)

10.9 (0.0–24.0)

10.4 (1.0 -29.0)

10.1 (0.0 -25.0)

10.6 (0.0 23.0)

6.6 (0.0- 24.0)

Breteau Index, mean (range)

13.4 (0.9–43.8)

12.4 (2.0–31.0)

14.7 (1.9 -64.0)

12.9 (1.9–38.0)

15.8 (0.0–54.0)

14.3 (0.0–40.3)

13.8 (1.0–41.6)

13.7 (0.0–36.0)

13.7 (0.0–36.0)

8.2 (0.0–26.8)

Container Index, mean (range)

26.5 (5.4–54.0)

26.4 (9.4–48.9)

22.5 (3.9–48.7)

20 (6.4–50.0)

19.6 (0.0–50.0

27.7 (0.0–60.5)

21.1 (3.8–50.0)

28.8 (0.0–57.6)

29.4 (0.0–69.5)

21.3 (0.0–66.6)

Population density (persons/km2)

415

2091

334

1078

640

665

507

208

279

3352

Land area (ha)

8800

5600

20,600

10,900

9000

14,000

26,400

27,600

20,900

7200

Per-capita land use (ha)

0.2

0.1

0.3

0.1

0.2

0.2

0.2

0.5

0.4

0.1

Household land use (ha)

0.9

0.2

1.2

0.4

0.6

0.7

0.6

2

1.4

0.1

Number of houses

9649

27,263

17,261

29,431

13,921

13,644

20,709

13,675

14,659

44,931

Number of luxury houses

0

10

1

14

0

17

11

4

0

303

Number of huts and shanties

6

29

31

84

77

80

102

53

12

144

Land area of rubber cultivation (ha)

370

654

14,614

5128

5128

6095

18,300

10,122

6172

145

Manufacturing industry, n

11

177

302

118

288

343

441

66

11

74

Number of schools

21

21

32

31

22

31

67

38

30

42

School-going population, n

5495

14,637

9269

30,289

7472

9329

32,355

8782

8310

39,417

Mean cumulative rainfall (mm/month)

337.1

241.2

367.8

241.2

348.1

357.5

259.8

273.6

352.8

215.6

Mean monthly temperature (°C)

31.8

30

31.8

31.8

31.8

30

30

31.8

31.8

30

  1. MOH Medical Officer of Health