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Table 2 Housing condition, environmental and LLINs related factors to malaria prevention among cases and controls in individuals visiting health centres in Ziway-Dugda Distict, Ethiopia, 2017 (N = 68)

From: Effectiveness of long-lasting insecticidal nets in prevention of malaria among individuals visiting health centres in Ziway-Dugda District, Ethiopia: matched case–control study

Variable

Category

Cases

Controls

No. (%) n = 67

No. (%) n = 201

Type of roofing

Corrugated iron sheet

37 (55.2)

126 (62.7)

Thatched roof

30 (44.8)

75 (37.3)

Separated bedroom

No

34 (50.7)

96 (47.8)

Yes

33 (49.3)

105 (52.2)

Separated kitchen

No

24 (35.8)

82 (40.8)

Yes

43 (64.2)

119 (59.2)

Presence of windows

No

29 (43.3)

78 (38.8)

Yes

38 (56.7)

123 (61.2)

Presence of patients with similar signs in home

No

50 (74.6)

175 (87.1)

Yes

17 (25.4)

26 (12.9)

House sprayed with IRS

No

32 (47.8)

60 (29.9)

Yes

35 (52.2)

141 (70.1)

Presence of stagnant water

No

58 (86.6)

165 (82.1)

Yes

9 (13.4)

36 (17.9)

Living together with livestock’s

No

47 (70.1)

155 (77.1)

Yes

20 (29.9)

46 (22.9)

Presence of forest or vegetation near to home

No

58 (86.6)

178 (88.6)

Yes

9 (13.4)

23 (11.4)

Presence of intermittent rivers or irrigation

No

55 (82.1)

162 (80.6)

Yes

12 (17.9)

39 (19.4)

Staying late out-door during night in the past two weeks

No

37 (55.2)

137 (68.2)

Yes

30 (44.8)

64 (31.8)

Number of LLNs in home

Only one

19 (38.0)

78 (42.4)

 

Two or more

31 (62.0)

106 (57.6)

Age of LLINs in months

 ≤ 12

28 (56.0)

116 (63.0)

 

13–35

18 (36.0)

58 (31.5)

 

 > 35

4 (8.0)

10 (5.5)

Presence of holes in LLINs

No

36 (72.0)

129 (70.1)

 

Yes

14 (28.0)

55 (29.9)

Frequency of washing LLINs in the past six months

 < 2 times

42 (84.0)

140 (76.1)

 

 ≥ 2 times

8 (16.0)

44 (23.9)