Indiana Infant Mortality Report
1990 - 2003

Table 29. Infant mortality rates by selected characteristics among whites, three-year moving averages: Lake County, Indiana, 1990-2003 linked files

Characteristics 90-92 91-93 92-94 93-95 94-96 95-97 96-98 97-99 98-00 99-01 00-02 01-03
  Rate per 1,000 live births in specified group
Total 8.1 7.7 8.1 8.0 8.0 7.4 7.0 6.3 5.6 6.1 6.9 7.3
                         
Sex                        
     Male 10.1 9.7 9.7 9.6 9.1 8.1 7.6 7.8 7.3 7.4 7.7 8.5
     Female 5.9 5.6 6.3 6.3 6.9 6.7 6.4 4.8 3.8 4.7 6.1 5.8
                         
Plurality                        
     Single births 7.6 7.2 7.5 7.6 7.6 7.2 7.0 6.3 5.4 5.6 6.2 6.6
     Multiple births * * * * * * * * * * * *
                         
Birth weight                        
     Less than 2,500 grams 80.2 72.9 87.9 80.8 76.3 54.5 54.4 50.7 49.2 54.3 61.6 56.7
         Less than 1,500 grams 324.5 272.2 343.6 328.9 346.9 235.7 234.3 233.5 245.3 256.3 251.5 237.3
         1,500-2,499 grams 30.0 29.2 30.4 31.4 25.5 * * * * * * *
     2,500 grams or more 3.5 3.5 2.8 3.0 2.9 3.6 3.1 2.8 1.8 2.2 2.6 3.3
                         
Gestational age                        
     Less than 37 weeks 46.4 43.2 49.5 45.4 48.0 39.6 41.5 35.1 34.0 33.9 37.9 35.1
         Less than 32 weeks 192.0 172.4 210.3 211.8 232.7 188.0 194.6 171.2 176.9 183.2 179.2 166.1
         32-36 weeks 17.5 16.6 15.6 * * * * * * * * *
     37 weeks or more 3.9 3.6 3.1 3.3 3.1 3.4 2.9 2.9 2.0 2.4 2.7 3.2
                         
Age of mother                        
     Under 20 years * * 12.1 11.7 12.5 14.5 13.9 * * * * *
         Under 18 years * * * * * * * * * * * *
         18-19 years * * * * * 17.3 * * * * * *
     20 years and over 7.8 7.3 7.6 7.5 7.4 6.4 6.1 5.8 5.5 6.0 7.0 7.0
         20-24 years 8.8 7.5 8.4 8.8 9.2 6.9 6.2 * * 5.5 7.1 8.7
         25-29 years 6.5 7.0 6.3 6.5 6.1 6.3 6.7 6.8 6.9 7.2 8.2 7.1
         30-34 years 6.4 5.7 6.9 7.1 6.7 * * * * * * *
         35 years and over * * * * * * * * * * * *
                         
Age/Education                        
    <20, less than appropriate * * * * * * * * * * * *
    <20, appropriate * * * * 16.2 16.7 * * * * * *
    20+, <12 years of education * * * * * * * * * * * *
    20+, 12 years of education 8.4 6.8 6.9 8.3 9.9 8.0 7.3 8.2 7.6 7.8 7.6 8.4
    20+, 13+ years of education 6.7 7.2 6.8 5.4 4.0 4.6 4.4 3.8 4.2 4.8 6.0 4.9
                         
Educational attainment                        
     Less than 12 years 9.3 10.3 12.8 12.8 11.7 9.8 9.4 * * * * 10.1
         0-8 years * * * * * * * * * * * *
         9-11 years * * 10.0 10.8 11.2 10.3 10.3 * * * * 11.3
     12 years 8.9 7.1 7.1 8.5 10.8 9.4 8.3 8.2 7.2 7.1 6.8 8.1
     More than 12 years 6.6 7.1 6.7 5.3 3.9 4.7 4.6 4.0 4.4 5.0 6.3 5.1
         13-15 years * 6.1 6.2 5.3 * * * * * * 6.0 5.8
         16 years and over 9.4 8.7 * * * * * * * * 6.7 *
                         
Live-birth order                        
     First 6.4 5.6 6.1 6.4 7.5 8.7 7.5 6.2 4.6 5.4 6.3 6.8
     Second 8.5 8.9 8.5 8.7 6.7 6.5 6.0 6.1 5.8 7.1 6.9 5.9
     Third 11.4 9.5 8.4 * 8.9 * * * * * 8.2 8.9
     Fourth+ * * 13.8 13.6 * * * * * * * *
                         
Marital status                        
     Married 7.4 6.7 6.2 5.9 5.3 5.4 5.1 5.0 4.9 5.3 5.9 5.6
     Unmarried 10.5 10.6 12.9 13.2 14.2 11.8 11.3 9.2 7.1 7.7 8.9 10.4
                         
Trimester prenatal care began                        
     First trimester 8.0 7.4 6.8 6.5 6.8 6.8 6.4 5.7 5.0 5.3 5.7 6.1
     After first trimester * * 8.6 * * * * * * * * *
         Second trimester * * * * * * * * * * * *
         Third trimester * * * * * * * * * * * *
     No care * * * * * * * * * * * *
                         
Prenatal care index1                        
     Adequate Plus 14.2 12.0 11.5 10.0 9.5 9.0 9.5 9.2 6.9 6.8 7.4 8.6
     Adequate 3.6 3.6 3.7 4.4 4.3 3.7 * * * 4.2 5.1 4.6
     Intermediate * * * * * * * * * * * *
     Inadequate * * * * * * * * * * * *
     No care * * * * * * * * * * * *
                         
Maternal smoking                        
     Smoking 10.3 10.6 11.6 12.2 12.7 10.2 8.9 8.5 * * * 10.8
     Non-smoking 7.2 6.7 6.8 6.6 6.6 6.7 6.6 5.9 5.2 5.8 6.8 6.6
1Based on APNCU Index (Kotelchuck, M., Am J Public Health 1994;84:1414-1420).
Source: Indiana State Department of Health, Epidemiology Resource Center