Table 1 Baseline characteristics of the study population

Village 1

407

22.5

Village 2

305

16.8

Village 3

751

41.5

Village 4

347

19.2

Gender

Male

929

51.3

Female

881

48.7

Age groups

≤9

568

31.4

10 -- 19

443

24.5

20 -- 29

321

17.7

≥30

478

26.4

Median age; [range]

16; [1; 88]

Ethnic groups

Cadong

350

19.3

M’nong

1,447

79.9

Kinh and others

13

0.7

Education level (age >18 years, n = 834)

None

230

27.6

Elementary

402

48.2

Secondary and above

202

24.2

Occupation (age >18 years, n = 834)

Students

27

3.2

Farmers

755

90.5

Others (officer, business)

52

6.2

Households N = 352

n

%

Average persons/household, median; [range]

5; [1; 11]

Bed net availability

No net

270

76.7

1-2 persons/net

21

6.0

≥3 persons/net

61

17.3

Type of roof

Aluminium

330

93.7

Others (leaves, tiles, wood, bamboo)

22

6.3

Type of wall

Wood

310

88.1

Bamboo

41

11.6

Brick

1

0.3

Cinnamon plantation

Owns cinnamon plantation

332

94.3

Average walking distance (hours) from village to plantation, median; [range]

1 h. [3 min; 8 hr]

Economic status

Lowest income

219

62.2

Low

27

7.7

Higher

106

30.1