2040
Proteinuria increased significantly from a median of 0 . 13 g / day ( range 0 - 5 . 7 ) preswitch to 0 . 23 g / day ( 0 - 9 . 88 ) at 24 months postswitch ( p = 0 . 0024 ) .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 None