A Web-Based Platform to Collect Data from ESRD Patients Undergoing Dialysis: Methods and Preliminary Results from the Brazilian Dialysis Registry

Table 1

General features of the program.

Year of conception	2006
Data collection dates	Jan/2011–Jul/2017
Number of invited centers	145
Number of participant centers/total (%)	73/726 (10.1)
Volunteers	40
Randomly assigned	33
Regional distribution of centers, total per region (%)
North	0/37 (0)
Midwest	6/66 (9.1)
Northeast	12/130 (9.2)
Southeast	32/340 (9.4)
South	23/153 (15.0)
Companies involved,	6

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