28152
The difference in the rate of congenital anomalies was not statistically significant [ 7 / 97 ( 7 . 2 % ) vs . 15 / 440 ( 3 . 4 % ) , p = 0 . 094 ] .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None