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Table 2 Crude odds ratios (ORs) with 95% confidence intervals (CI) for various risk factors associated with seropositivity of Toxoplasma gondii antibodies among primary schoolchildren in the Democratic Republic of São Tomé and Príncipe

From: Toxoplasma gondii infection: relationship between seroprevalence and risk factors among primary schoolchildren in the capital areas of Democratic Republic of São Tomé and Príncipe, West Africa

Variable Group ORs (95% CI) p value
Gender Boys Referent  
  Girls 1.1 (0.6–1.7) 0.9
Age group (yr) 8 Referent  
  9 0.8 (0.3–2.0) 0.9
  10 1.1 (0.5–2.7) 0.8
  11 0.5 (0.2–1.2) 0.1
Parents jobs Skilled worker Referent -
  Semiskilled worker 1.2 (0.6–2.7) 0.6
  Non-skilled worker 2.9 (1.4–5.8) 0.03
Symptoms Ocular   
  No Referent -
  Yes 1.5 (0.7–3.3) 0.3
  Headache   
  No Referent -
  Yes 1.4 (0.8–2.5) 0.3
  Abdominal pain   
  No Referent -
  Yes 0.6 (0.3–1.2) 0.2
  Seizure   
  No Referent -
  Yes 0.6 (0.1–2.9) 0.5
Risk factors Raising dogs   
  No Referent -
  Yes 1.3 (0.8–2.3) 0.3
  Raising cats   
  No Referent -
  Yes - < 0.001
  Playing in the soil   
  No Referent -
  Yes 1.9 (0.3–14.2) 0.5
  Eating raw meat   
  No Referent -
  Yes - 0.8
  Eating raw vegetables   
  No Referent -
  Yes 0.8 (0.3–1.9) 0.8
  Drink unboiled water   
  No Referent -
  Yes 1.3 (0.7–2.4) 0.4