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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)