4117
Overall , 61 . 4 % of the patients aged <= 6 years and 77 . 5 % of the patients aged 7 - 12 years were managed in a non - health care facility , while 55 . 8 % of the patients aged > 12 years were referred to or already in a health care facility .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None