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Table 1 Characteristics of cases and controls for the population-based matched case-control dataset from the Pediatric Medicaid population in Detroit, Michigan, 2004-2006.

From: Asthma exacerbation and proximity of residence to major roads: a population-based matched case-control study among the pediatric Medicaid population in Detroit, Michigan

Characteristics Case Control Total
Number of subjects 5338 9308 14646 (100%)
Gender    
   Male 31761 (59.5%)2 5500 (59.1%) 8676 (59.2%)
   Female 2162 (40.5%) 3808 (40.9%) 5970 (40.8%)
Race    
   Caucasian 224 (4.2%) 408 (4.4%) 632 (4.3%)
   African American 4966 (91.9%) 8493 (91.2%) 13459 (91.9%)
   Indian 1 (<0.1%) 1 (<0.1%) 2 (<0.1%)
   Other/Unknown 34 (0.6%) 85 (0.9%) 119 (0.8%)
   Hispanic 113 (2.1%) 322 (3.5%) 435 (2.9%)
Age(years)    
   0-5 2782 (52.1%) 4751 (51.0%) 7533 (51.4%)
   6-10 1388 (26.0%) 2490 (26.8%) 3878 (26.5%)
   11-17 1168 (21.9%) 2067 (22.2%) 3235 (22.1%)
Distance from primary road (m) 1386.43 (20-5847) 4 1437.0 (20-5951) 1418.7 (20-5951)
Distance from secondary road (m) 1342.2 (20-5099) 1347.2 (20-5129) 1344.5 (20-5129)
  1. 1 Count
  2. 2 Percentage
  3. 3 Mean
  4. 4 Range
  5. Characteristics of patients in the population-based matched case-control data set of asthma from the pediatric Medicaid population in Detroit, Michigan, 2004-2006. The data were summarized in the form of counts and percents across gender, race, and age groups, and in the form of mean and ranges of distance from major roads by case-control status.