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Table 1 Socio-demographic characteristics of subjects with abdominal hernia repair and seroprevalence of T. gondii infection.

From: Toxoplasma gondii infection and abdominal hernia: evidence of a new association

    Prevalence of T. gondii infection P value
Characteristic No. a % No. %  
Age groups (years)      
   30 or less 7 13 0 0 0.06
   31-50 11 20.4 0 0  
   > 50 36 66.7 9 100  
Sex      
   Male 32 58.2 3 9.4 0.14
   Female 23 41.8 6 26.1  
Birth place      
   Durango State 45 83.3 5 11.1 0.03
   Other Mexican State 9 16.7 4 44.4  
Residence place      
   Durango State 55 100 9 16.4 -
Residence area      
   Urban 48 88.9 9 18.8 0.50
   Suburban 2 3.7 0 0.0  
   Rural 4 7.4 0 0.0  
Educational level      
   No education 1 1.9 0 0.0 0.67
   1-6 years 19 35.2 4 21.1  
   7-12 years 14 25.9 1 7.1  
   > 12 years 20 37.0 4 20.0  
Socio-economic level      
   Low 15 28.3 0 0.0 0.04
   Medium 38 71.7 9 23.7  
Occupation      
   Non-laborerb 15 27.3 2 13.3 1.00
   Laborerc 40 72.7 7 17.5  
  1. aIn some strata the sum does not add up to the total because of a few missing values.
  2. bNon laborer = none occupation, student or housewife.
  3. cLaborer = Employee, professional, business, agriculture, cattle rising, factory worker, construction worker or other.