| 
      Factor | 
    Births | 
    Infant Deaths | 
  
   
    | Number | 
    Percent | 
    Number | 
    Percent | 
  
   
    | Total | 
    20,731 | 
      | 
    157* | 
      | 
  
   
    | Birthweight < 2,500 Grams | 
    1,667 | 
    8.0 | 
    102 | 
    65.8 | 
  
   
    | Birthweight < 1,500 Grams | 
    278 | 
    1.3 | 
    75 | 
    48.4 | 
  
   
    | Gestational Age < 37 Weeks | 
    2,653 | 
    12.8 | 
    94 | 
    60.6 | 
  
   
    | Age of Mother < 20 Years | 
    3,025 | 
    14.6 | 
    25 | 
    16.1 | 
  
   
    | Age of Mother < 15 Years | 
    23 | 
    0.1 | 
    0 | 
    0.0 | 
  
   
    | Unmarried Mothers | 
    6,566 | 
    31.7 | 
    60 | 
    38.7 | 
  
   
    | Mothers Using Tobacco | 
    5,311 | 
    25.6 | 
    58 | 
    37.4 | 
  
   
    | Mothers Using Alcohol | 
    129 | 
    0.6 | 
    2 | 
    1.3 | 
  
   
    | White Mothers | 
    19,802 | 
    95.5 | 
    144 | 
    92.9 | 
  
   
    | Black Mothers | 
    745 | 
    3.6 | 
    10 | 
    6.5 | 
  
   
    | Mothers of Other Races | 
    184 | 
    0.9 | 
    1 | 
    0.6 | 
  
  
   
  | 
      Factor | 
    Number | 
    Percent | 
    Number | 
    Percent | 
  
   | Births | 
    Infant Deaths | 
  
* Includes 2 infant deaths without matching birth information
.