| 1| 1Peer Report: Dialysis Care & Outcomes in the U.S., 2014 | 5-STAR QUALITY RATING SYSTEM Peer Report: Dialysis Care & Outcomes in the U.S., Star Quality Rating System

| 2| 2Peer Report: Dialysis Care & Outcomes in the U.S., 2014 | 5-STAR QUALITY RATING SYSTEM CMS methodology

| 3| 3Peer Report: Dialysis Care & Outcomes in the U.S., 2014 | 5-STAR QUALITY RATING SYSTEM Assignment of star ratings, on the basis of scores from CMS methodology

| 4| 4Peer Report: Dialysis Care & Outcomes in the U.S., 2014 | 5-STAR QUALITY RATING SYSTEM Comparison of rating from CMS methodology vs. rating based exclusively on standardized mortality ratio (SMR) & standardized hospitalization ratio (SHR) SMR & SHR weighted equally

| 5| 5Peer Report: Dialysis Care & Outcomes in the U.S., 2014 | 5-STAR QUALITY RATING SYSTEM Comparison of rating from CMS methodology vs. rating based exclusively on standardized mortality ratio (SMR) & standardized hospitalization ratio (SHR) SMR & SHR weighted equally

| 6| 6Peer Report: Dialysis Care & Outcomes in the U.S., 2014 | 5-STAR QUALITY RATING SYSTEM Comparison of rating from CMS methodology vs. rating with 50 percent weight ascribed to standardized mortality ratio (SMR) & standardized hospitalization ratio (SHR) In CMS methodology, only 22 percent of weight is ascribed to SMR & SHR

| 7| 7Peer Report: Dialysis Care & Outcomes in the U.S., 2014 | 5-STAR QUALITY RATING SYSTEM Comparison of rating from CMS methodology vs. rating with 50 percent weight ascribed to standardized mortality ratio (SMR) & standardized hospitalization ratio (SHR) In CMS methodology, only 22 percent of weight is ascribed to SMR & SHR

| 8| 8Peer Report: Dialysis Care & Outcomes in the U.S., 2014 | 5-STAR QUALITY RATING SYSTEM Comparison of rating from CMS methodology vs. rating based exclusively on Kt/V & hypercalcemia metrics

| 9| 9Peer Report: Dialysis Care & Outcomes in the U.S., 2014 | 5-STAR QUALITY RATING SYSTEM Comparison of rating from CMS methodology vs. rating based exclusively on Kt/V & hypercalcemia metrics

| 10Peer Report: Dialysis Care & Outcomes in the U.S., 2014 | 5-STAR QUALITY RATING SYSTEM Comparison of rating from CMS methodology vs. rating based exclusively on fistula & catheter metrics

| 11Peer Report: Dialysis Care & Outcomes in the U.S., 2014 | 5-STAR QUALITY RATING SYSTEM Comparison of rating from CMS methodology vs. rating based exclusively on fistula & catheter metrics

| 12Peer Report: Dialysis Care & Outcomes in the U.S., 2014 | 5-STAR QUALITY RATING SYSTEM Comparison of rating from CMS methodology vs. rating that reflects uncertainty in estimates of standardized outcome ratios

| 13Peer Report: Dialysis Care & Outcomes in the U.S., 2014 | 5-STAR QUALITY RATING SYSTEM Comparison of rating based exclusively on Kt/V & hypercalcemia metrics vs. rating based exclusively on fistula & catheter metrics