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Table 1 Basic description of the study sample

From: Travel history and malaria infection risk in a low-transmission setting in Ethiopia: a case control study

  P.f+§ P.v+§ All positive Negative Total
n=85 (%) n= 57 (%) n=141 (%) n= 419 (%) n=560 (%)
Sex      
Female 39 (45.9) 22 (38.6)** 60 (42.6)** 247 (59.4) 307 (54.8)
Missing 0 (0.0) 0 (0.0)** 0 (0.0)** 3 (0.7) 3 (0.5)
Age Category (years)      
18-20 26 (30.6) 24 (42.1) 50 (35.5) 116 (27.7) 166 (29.6)
21-25 17 (20.0) 12 (21.1) 29 (20.6) 80 (19.1) 109 (19.5)
26-32 16 (18.8) 11 (19.3) 27 (19.2) 113 (27.0) 140 (25.0)
33+ 23 (27.1) 9 (15.8) 31 (22.0) 100 (23.9) 131 (23.4)
Missing 3 (3.5) 1 (1.8) 4 (2.84) 10 (2.4) 14 (2.5)
Occupation      
Agriculture 62 (72.9) 38 (66.7) 99 (70.2) 301 (71.8) 400 (71.4)
Non-Agricultural 23 (27.1) 19 (33.3) 42 (29.8) 116 (27.7) 158 (28.2)
Missing 0 (0.0) 0 (0.0) 0 (0.0) 2 (0.5) 2 (0.4)
Own Animals      
Yes 76 (89.4) 47 (82.5) 122 (86.5) 365 (87.1) 487 (87.0)
Roof Material      
Thatch/Leaf 53 (62.4)* 27 (47.4) 79 (56.0) 206 (49.2) 285 (50.9)
Corrugated Iron 31 (36.5)* 30 (52.6) 61 (43.3) 205 (48.9) 266 (47.5)
Other 1 (1.2)* 0 (0.0) 1 (0.7) 8 (1.9) 9 (1.6)
Wall Material      
Bamboo/Wood 28 (32.9) 19 (33.3)** 47 (33.3)* 140 (33.4) 187 (33.4)
Covered Adobe 38 (44.7) 15 (26.3)** 53 (37.6)* 200 (47.7) 253 (45.2)
Wood Planks/Shingles 12 (14.1) 13 (22.8)** 24 (17.0)* 44 (10.5) 68 (12.1)
Other 7 (8.2) 10 (17.5)** 17 (12.0)* 33 (7.9) 50 (8.9)
Missing 0 (0.0) 0 (0.0)** 0 (0.0)* 2 (0.5) 2 (0.4)
Electricity      
Yes 15 (17.7) 17 (29.9) 32 (22.7) 95 (22.7) 127 (22.7)
Missing 1 (1.2) 0 (0.0) 1 (0.7) 3 (0.7) 4 (0.7)
Radio      
Yes 29 (34.1) 21 (36.8) 50 (35.5)* 190 (45.4) 240 (42.9)
Missing 1 (1.2) 1 (1.8) 2 (1.4)* 4 (1.0) 6 (1.1)
Travel Overnight      
Yes 36 (42.4) 21 (36.8) 57 (40.4) 136 (32.5) 193 (34.5)
Missing 0 (0.0) 1 (1.8) 1 (0.7) 6 (1.4) 7 (1.3)
Owned an ITN      
Yes 34 (40.0) 19 (33.3) 53 (37.6) 181 (43.2) 234 (41.8)
Missing 1 (1.2) 0 (0.0) 1 (0.7) 6 (1.4) 7 (1.3)
Slept under ITN previous night
Yes 14 (16.5) 12 (21.1) 26 (18.4) 82 (19.6) 108 (19.3)
Missing 1 (1.2) 1 (1.8) 2 (1.4) 9 (2.2) 11 (2.0)
  1. §P.f.+ and P.v.+ totals include mixed diagnosis; **Significant difference between cases and controls at the 5% level, using a χ2 (Fischer’s Exact) test. *Significant difference between cases and controls at the 10% level using a χ2 (Fischer’s Exact) test.