Table 3.
AKI proportion during the action phase and in the prior 12 months by intervention group and CKD status
| Population | Prior 12 mo | Action Phase | Absolute Difference in % AKI between Prior 12 mo and Action Phase [95% CI] | Adjusted Difference in % AKI in Action Phase between Specified Intervention and Assistance [95% CI] | |
|---|---|---|---|---|---|
| N (%) | N (%) | Case-Mix Adjusteda % [95% CI] | |||
| All patients | |||||
| All VA sites | 1630 (11) | 2156 (12) | −1 [−1 to 0] | ||
| All study sites | 416 (11) | 510 (11) | 0 [−2 to 1] | ||
| Intervention group | |||||
| Assistance | 67 (8) | 110 (13) | 14 [14 to 15] | −6 [−9 to −3] | 0 (reference) |
| Assistance+Surveillance | 100 (11) | 122 (11) | 11 [11 to 11] | 0 [−3 to 3] | −3 [−4 to −3] |
| Collaborative | 176 (15) | 190 (13) | 12 [11 to 12] | 2 [−1 to 5] | −3 [−3 to −2] |
| Collaborative+Surveillance | 73 (9) | 88 (8) | 9 [9 to 9] | 1 [−2 to 3] | −5 [−6 to −5] |
| CKD subset | |||||
| All VA sites | 693 (19) | 959 (19) | 0 [−2 to 1] | ||
| All study sites | 187 (18) | 235 (18) | 0 [−3 to 3] | ||
| Intervention group | |||||
| Assistance | 36 (17) | 42 (17) | 20 [19 to 20] | 0 [−7 to 7] | 0 (reference) |
| Assistance+Surveillance | 54 (18) | 68 (23) | 20 [20 to 21] | −4 [−11 to 2] | 0 [−1 to 1] |
| Collaborative | 61 (20) | 77 (19) | 16 [16 to 17] | 2 [−4 to 8] | −4 [−5 to −3] |
| Collaborative+Surveillance | 36 (15) | 48 (14) | 16 [16 to 17] | 1 [−4 to 7] | −3 [−4 to −3] |
CI, confidence interval; VA, Veterans Affairs; Assistance, Technical Assistance; Surveillance, Automated Surveillance Reporting; Collaborative, Virtual Learning Collaborative.
a
Case-mix–adjusted proportions provide the mean predicted outcome probability if patient characteristic distributions during the action phase were the same in each intervention group.