Hemoglobin
Northwest Renal Network Hemodialysis Patients, 1997-2006
1998 ESRD Core Indicators Studies ("CIS"), Q4 1997
1999-2007 ESRD Clinical Performance Measures Studies ("CPM"), Q4 1998 to Q4 2006
Patients Meeting Indicated Criteria
Number Percent Percent
of (Number) (Number)
Median Patients >= 11 >= 10
hemoglobin not collected before Q4 1997
Q4 1997 (1998 CIS) 11.1 302 57% (171) 88% (265)
Q4 1998 (1999 CPM) 11.3 332 62% (207) 86% (284)
Q4 1999 (2000 CPM) 11.6 471 73% (346) 88% (416)
Q4 2000 (2001 CPM) 11.7 481 76% (366) 93% (445)
Q4 2001 (2002 CPM) 11.9 470 79% (371) 94% (441)
Q4 2002 (2003 CPM) 11.8 471 80% (377) 96% (452)
Q4 2003 (2004 CPM) 11.8 478 78% (373) 95% (454)
Q4 2004 (2005 CPM) 11.9 82% 97%
Q4 2005 (2006 CPM) 12.0 83% 94%
Q4 2006 (2007 CPM) 12.1 87% 96%
1-Year Improvement 2005 to 2006 4% (ns) 2% (ns)
5-Year Improvement 2001 to 2006 8% (p < 0.001) 2% (ns)
Hematocrit
Northwest Renal Network Hemodialysis Patients, 1993-1998
1994-1998 ESRD Core Indicators Studies ("CIS"), Q4 1993 to Q4 1997
1999 ESRD Clinical Performance Measures Studies ("CPM"), Q4 1998
Patients Meeting Indicated Criteria
Number Percent Percent Percent Percent
of (Number) (Number) (Number) (Number)
Median Patients >= .33 >= .31 > = .30 < .25
Q4 1993 (1994 CIS) 32.0 291 44% (128) 65% (190) 76% (221) 4.5% (13)
Q4 1994 (1995 CIS) 32.1 403 41% (167) 64% (258) 74% (298) 3.2% (13)
Q4 1995 (1996 CIS) 32.9 362 51% (183) 78% (281) 85% (307) 1.7% (6)
Q4 1996 (1997 CIS) 33.8 374 65% (243) 83% (309) 89% (334) 0.8% (3)
Q4 1997 (1998 CIS) 33.6 392 61% (240) 82% (320) 91% (355) 0.8% (3)
Q4 1998 (1999 CPM) 34.3 461 70% (321) 85% (393) 89% (412) 1.5% (7)
hematocrit not collected after Q4 1998
Note: Numbers through 2001 are Network calculations, while numbers after 2001 are CMS calculations.  Network calculations used all available data, while CMS calculations censored subjects according to criteria listed in the CPM Project Annual Report.  In no case do results differ substantially.                                                                              5/8/2008