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Table 4 CKD performance outcome measures for wave I and wave II practices

From: Leveraging practice-based research networks to accelerate implementation and diffusion of chronic kidney disease guidelines in primary care practices: a prospective cohort study

Performance measure Wave I Wave II
Pre-intervention period Post-intervention period pvalue* Pre-intervention period Post-intervention period pvalue*
If eGFR <60 N = 374 N = 660
 ACE or ARB prescribed: n (%) 232 (63%) 255 (69%) 0.002 354 (55%) 407 (63%) <0.001
 Taking NSAIDs: n (%) 25 (7%) 18 (5%) 0.10 51 (8%) 45 (7%) 0.44
 A1c testing performed: n (%) 288 (77%) 297 (79%) 0.25 492 (89%) 487 (88%) 0.65
 Urine microalbumin test performed: n (%) 158 (42%) 175 (47%) 0.16 NA NA NA
 LDL test performed: n (%) 309 (83%) 305 (82%) 0.75 NA NA NA
 A1c test results: Mean (SD) 7.1% (1.4) 7.2% (1.5) 0.78 7.4% (1.6) 7.3% (1.5) 0.07
 Systolic BP measure (mmHg): mean (SD) 132.5 (16.3) 132.8 (16.0) 0.72 132.0 (15.9) 131.4 (14.9) 0.39
 Diastolic BP measure (mmHg): mean (SD) 72.8 (9.1) 72.7 (9.0) 0.93 72.0 (9.4) 71.7 (8.5) 0.48
 LDL test result (mg/dl): mean (SD) 89.8 (36.6) 90.2 (32.8) 0.84 96.3 (38.1) 92.0 (34.5) 0.004
If eGFR <45 N = 138 N = 233
 Hemoglobin test performed: n (%) 84 (61%) 100 (72%) 0.02 NA NA NA
 Vitamin D testing (or supplement): n (%) 51 (37%) 83 (60%) <0.001 87 (37%) 132 (57%) <0.001
  1. SD standard deviation, NA not applicable because it was an annual recommendation and in wave II, the post-intervention period was only 9 months.
  2. *McNemar’s test was used to generate p values for categorical-scaled outcomes and the paired t test for continuous-scaled outcome measures.