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Table 1 Risk factors for malaria infection in Príncipe

From: Malaria and its possible control on the island of Príncipe

Risk factor Level Number infected/total slides (%) Relative Risk (95% CI) P-value$
Community Rua dos Trabalhadores 94/349 (26.9)   <0.0001
  Budu Budu 17/167 (10.2)   
  Alójamento 26/145 (17.9)   
  Estrada Porto Real 8/31 (25.8)   
  Sundy 55/313 (17.6)   
  Praia de Sundy 8/18 (44.4)   
Mosquito net use Users 97/556 (17.4) 0.74 (0.58–0.94) 0.016
  Non-users 111/468 (23.7)   
Openings between roof and wall Openings present 79/284 (27.8) 1.57 (1.22–2.02) 0.0008
  Openings absent 109/614 (17.8)   
Wire gauze covering windows Intact 4/36 (11.1) 0.52 (0.21–1.33) 0.2
  Absent or damaged 186/875 (21.3)   
  1. $Pearson χ2 tests