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Table 1 Demographic characteristics and streptococcal group distributions of children attending slum and non-slum clinics

From: Factors associated with Group A Streptococcus emm type diversification in a large urban setting in Brazil: a cross-sectional study

  Total Population (n = 2194) Non-sluma(n = 917) Slumb(n = 1277)  
   N   N   p-value
Cases 624 915 287 1266 337 --
Controls 1557 915 628 1266 929 --
Mean Age in years (95%CI) 7.5 (7.3-7.6) 917 7.8 (7.6-8.1) 1277 7.2 (7.1-7.4) <.001
Sex       1.0
Female 1060 917 443 1277 617  
Male 1134 917 474 1277 660  
Monthly salary   870   1205   <.001
415 685   37   648  
416-830 550   161   389  
831-1660 336   204   132  
1661-2490 195   173   22  
2491 309   295   14  
Mean # people/house (95%CI) 4.3 (4.2-4.3) 917 4.0 (3.9-4.1) 1275 4.5 (4.4-4.6) <.001
Mean # people15 yrs./house (95%CI) 1.8 (1.8-1.9) 917 1.6 (1.5-1.6) 1276 2.0 (2.0-2.1) <.001
Group A 254 917 99 1277 155 0.33
Group B 34 917 24 1277 10 .001
Group C 57 917 30 1277 27 0.09
Group F 51 917 24 1277 27 0.44
Group G 133 917 46 1277 87 0.08
  1. aIncludes all children from Clinic C
  2. bIncludes all children from Clinics A and B
  3. N: total number with available response