ID.1
Item
type 1 or type 2 diabetes mellitus
boolean
ID.2
Item
diabetic nephropathy
boolean
ID.3
Item
hypertension
boolean
ID.4
Item
gfr < 30 ml/min/1.73m2
boolean
ID.5
Item
serum k > 5.5 meq/l
boolean
ID.6
Item
age < 18 y
boolean
ID.7
Item
pregnancy
boolean
ID.8
Item
breast feeding
boolean
ID.9
Item
cocoa or green tea intolerance
boolean
ID.10
Item
alcohol and drugs abuse
boolean
ID.11
Item
incapacity to understand the information related to the study
boolean