Cases Controls
Variable Category No % No % Global p-value
Age (years) 40-49 3 0.9 11 0.9  
  50-59 24 6.9 88 6.8  
  60-69 115 33.3 424 32.7  
  70-79 164 47.5 633 48.8  
  80-89 39 11.3 140 10.8 0.99
Residence Montevideo 176 51.0 664 51.2  
  Other counties 169 49.0 632 48.8 0.94
Urban/rural status Urban 247 71.6 929 71.7  
  Rural 98 28.4 367 28.3 0.97
Education 0-2 107 31.0 395 30.5  
(years) 3-5 133 38.6 488 37.6  
  6+ 105 30.4 413 31.9 0.88
Income <=144 101 29.3 494 38.1  
(US dollars) 145+ 128 37.1 498 38.4  
  Unknown 116 33.6 304 23.5 0.12
BMI1 <=22.8 53 15.4 324 25.0  
  22.9-24.9 85 24.6 324 25.0  
  25.0-27.1 100 29.0 324 25.0  
  27.2+ 107 31.0 324 25.0 0.001
Years smoked Never smokers 92 26.7 233 17.9  
  1-29 34 9.9 190 14.7  
  30-39 45 13.0 219 16.9  
  40-49 64 18.5 316 24.4  
  50+ 110 31.9 338 26.1 0.0001
No patients   345 100.0 1296 100.0  
1Body mass index.
Table 1: Distribution of cases and controls by sociodemographics and selected risk factors.