Table 3 Characteristics of plantation workers

Gender

 Male

56.8 (53.0–60.4)

58.7 (55.3–62.0)

57.7 (54.8–60.5)

 Female

43.3 (39.6–47.0)

41.3 (38.0–44.8)

42.3 (39.5–45.2)

Age group

 15–30

49.4 (41.1–57.6)

51.8 (46.1–57.4)

50.5 (44.0–57.0)

 31+

50.7 (42.4–58.9)

48.2 (42.6–53.9)

49.5 (43.0–56.0)

Education

 No or some primary

71.1 (67.6–74.5)

68.9 (64.6–72.9)

70.0 (67.6–72.4)

 Some Secondary

21.6 (18.8–24.8)

25.0 (21.4–29.0)

23.3 (21.4–25.3)

 Completed secondary or higher

7.2 (5.5–9.4)

6.1 (4.8–7.6)

6.7 (5.7–7.8)

Residence status based on questionnaire data

 Temporary

34.9 (26.2–44.8)

21.6 (13.4–33.1)

28.4 (20.2–38.4)*

 Permanent

65.1 (55.2–73.8)

78.4 (66.9–86.6)

71.6 (61.6–79.8)

Type of house

 House

44.4 (31.7–57.9)

51.3 (36.3–66.1)

47.8 (35.0–60.9)

 Barrack

50.9 (36.9–64.7)

40.4 (24.3–58.8)

45.8 (31.5–60.7)

 Tent or temporary structure

4.7 (2.4–8.9)

8.3 (3.6–17.9)

6.5 (3.4–12.1)

Reported habitual use of insecticide treated net as a malaria prevention method at night

 Yes

33.1 (28.9–37.7)

56.1 (49.7–62.2)

44.3 (39.6–49.2)*

 No

66.9 (62.3–71.2)

43.9 (37.8–50.3)

55.7 (50.8–60.4)

Use of treated net the previous night

 Yes

35.7 (32.2–39.3)

61.0 (56.5–65.3)

48.0 (44.7–51.4)*

 No

64.3 (60.7–67.8)

39.0 (34.7–43.5)

51.9 (48.6–55.3)

Any Forest exposure in the last 1 month

 Yes

22.4 (12.8–36.2)

18.5 (15.2–22.2)

20.5 (14.2–28.6)

 No

77.6 (63.8–87.2)

81.6 (77.8–84.8)

79.5 (71.4–85.8)

Overnight forest exposure in last 1 month

 Yes

0.8 (0.3–1.7)

2.6 (1.5–4.6)

1.7 (1.0–2.8)*

 No

99.2(98.2–99.7)

97.4(95.4–98.6)

98.3 (97.2–99.0)

Main daytime work

 Tapping rubber

44.6 (30.5–59.7)

45.7 (30.1–62.3)

45.2 (31.2–60.0)

 Planting/caring for young plants

38.4 (25.4–53.3)

44.3 (27.9–62.0)

41.3 (27.7–56.4)

 Clearing forest

4.8 (2.8–8.2)

0.3 (0.1–0.7)

2.6 (1.5–4.4)

 Other/does not work

12.5 (9.1–16.1)

9.7 (7.4–12.6)

11.0 (8.9––13.6)

Main nighttime work

 Tapping rubber

42.7 (28.3–58.8)

37.1 (22.7–54.3)

40.0 (26.5–55.2)

 Does not work

51.5 (34.7–67.9)

57.8 (41.1–72.8)

54.6 (38.9–69.4)

 Other

5.8 (3.7–9.0)

5.1 (3.0–8.5)

5.4 (3.8–7.7)

Travelled outside of the commune in the previous 1 month

 Yes

9.4 (6.6–13.3)

34.8 (29.5–40.5)

21.8 (18.7–25.3)*

 No

90.6 (86.7–93.4)

65.3 (59.6–70.5)

78.2 (74.7–81.3)

Travel to another country in the previous 1 month

 Yes

1.0 (0.4–2.5)

0.2 (< 0.1–0.5)

0.6 (0.3–1.4)*

 No

99.1 (97.6–99.6)

99.8 (99.5–99.9)

99.4 (98.6–99.8)

Travel to another country ever

 Yes

19.9 (15.6–25.1)

18.6 (15.3–22.3)

19.3 (15.7–23.4)

 No

80.1 (74.9–84.4)

81.4 (77.7–84.7)

80.8 (76.6–84.3)