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Table 1—

Incidence of type 1 diabetes in children in Philadelphia from 1990 to 1994 according to age and race

Age (years)
Crude rateAdjusted rate
0–45–910–14
White      
 Cases (n) 24 34 30 88  
 Population 48,736 44,577 42,352 135,665  
 Rate/100,000/year 9.8 15.3 14.2 13.0 13.1 
 95% CI 6.16–14.36 10.77–21.54 9.45–19.83 10.17–15.63 10.3–15.7 
African-American      
 Cases (n) 12 29 57 98  
 Population 55,637 48,205 49,843 153,685  
 Rate/100,000/year 4.3 12.0 22.9 12.8 12.9 
 95% CI 2.18–7.19 7.88–17.01 17.25–29.29 10.02–15.10 10.1–15.2 
Hispanic      
 Cases (n) 21  
 Population 9,784 8,769 8,568 27,121  
 Rate/100,000/year 12.3 13.7 21.0 15.5 15.4 
 95% CI(l) 6.13–26.57 6.84–29.65 9.34–39.68 9.59–23.60 9.5–23.5 
Total*      
 Cases (n) 43 70 96 209  
 Population 115,678 102,785 101,688 320,151  
 Rate/100,000/year 7.4 13.6 18.9 13.1 13.3 
 95% CI 5.08–9.64 10.44–17.13 15.09–22.83 11.4–14.9 11.7–15.2 
Age (years)
Crude rateAdjusted rate
0–45–910–14
White      
 Cases (n) 24 34 30 88  
 Population 48,736 44,577 42,352 135,665  
 Rate/100,000/year 9.8 15.3 14.2 13.0 13.1 
 95% CI 6.16–14.36 10.77–21.54 9.45–19.83 10.17–15.63 10.3–15.7 
African-American      
 Cases (n) 12 29 57 98  
 Population 55,637 48,205 49,843 153,685  
 Rate/100,000/year 4.3 12.0 22.9 12.8 12.9 
 95% CI 2.18–7.19 7.88–17.01 17.25–29.29 10.02–15.10 10.1–15.2 
Hispanic      
 Cases (n) 21  
 Population 9,784 8,769 8,568 27,121  
 Rate/100,000/year 12.3 13.7 21.0 15.5 15.4 
 95% CI(l) 6.13–26.57 6.84–29.65 9.34–39.68 9.59–23.60 9.5–23.5 
Total*      
 Cases (n) 43 70 96 209  
 Population 115,678 102,785 101,688 320,151  
 Rate/100,000/year 7.4 13.6 18.9 13.1 13.3 
 95% CI 5.08–9.64 10.44–17.13 15.09–22.83 11.4–14.9 11.7–15.2 

Population data are total population 0–14 years.

*

Total includes two Asian subjects.

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