23560
METHODS : Meta - analysis of prospective observational studies in which participants had prediabetes at baseline ( ADA - defined IFG [ 5 . 6 - 6 . 9 mmol / l ] , WHO - defined IFG [ 6 . 1 - 6 . 9 mmol / l ] , IGT ( 7 . 8 - 11 . 0 mmol / l ) or raised HbA1c [ 6 . 0 - 6 . 4 % / 42 - 46 mmol / mol ] ) and were followed up for incident diabetes .
 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