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Table 2 Environmental and household characteristics in the intervention (I) and control (C) areas for pre-intervention survey (survey 1).

From: Spatial targeted vector control in the highlands of Burundi and its impact on malaria transmission

  Valleys Hill tops
  C I C I
No. of houses sampled 100 100 99 150
Houses with animals inside 68.0 (4.5) 62.0 (6.1) 69.4 (5.1) 64.7 (6.0)
Open eaves 57.0 (5.1) 49.0 (6.0) 48.5 (6.0) 47.3 (5.7)
Separate kitchen 22.0 (4.4) 19.0 (4.6) 20.2 (4.8) 22.0 (6.0)
Size of houses     
   < 25 m2 11.0 (4.6) 28.0 (5.6) 19.2 (5.5) 19.3 (3.7)
   25–50 m2 19.0 (4.6) 22.0 (5.3) 21.2 (4.3) 34.0 (4.2)
   > 50 m2 70.0 (6.5) 50.0 (7.6) 59.6 (6.5) 46.7 (5.5)
Type of walls     
   Thatch 2.0 (1.4) 10.0 (3.8) 8.1 (3.8) 8.0 (2.7)
   Mud 69.0 (7.0) 54.0 (7.5) 67.7 (6.7) 61.3 (6.8)
   Bricks 24.0 (6.0) 33.0 (6.6) 19.2 (4.2) 25.3 (5.4)
   Other 5.0 (2.0) 3.0 (1.7) 5.1(2.1) 5.3 (2.5)
Type of roofs     
   Thatch 51.0 (7.1) 53.0 (8.5) 52.5 (6.2) 55.3 (7.1)
   Tile 14.0 (4.6) 16.0 (5.4) 19.2 (5.2) 12.0 (3.7)
   Corrugate 19.0 (5.1) 22.0 (6.2) 23.2 (4.4) 27.3 (6.5)
   Other 16.0 (4.8) 9.0 (3.2) 5.1 (2.9) 5.3 (1.9)
Altitude clusters (m) 1554 (11.9) 1548 (12.0) 1599 (18.4) 1607 (14.3)
Distance clusters/valley floors (m) 387(27.5) 404 (29.0) 945 (39.8) 1216 (71.5)
  1. Proportions (standard error) are reported except for altitude and distance where arithmetic means (standard error) are given.