Table 3.
Encounter-level descriptive information for emergency department visits for a CKD-related ambulatory care-sensitive condition (17,176 emergency department visits for 111,087 patients)
| Encounter-level Variables | CKD Category | ||||
|---|---|---|---|---|---|
| G3A, n=71,347 | G3B, n=28,020 | G4, n=8653 | G5 (nondialysis), n=1305 | G5 (dialysis), n=1762 | |
| No. of ED visits for a CKD-related ACSCa | 6687 | 6013 | 3363 | 465 | 648 |
| Person-time, person-yr | 177,232 | 66,986 | 19,574 | 2808 | 4168 |
| Unadjusted rate per 1000 person-yr (95% CI) | 38 (37 to 39) | 90 (88 to 92) | 172 (166 to 178) | 166 (151 to 181) | 155 (144 to 168) |
| ED visits for a CKD-related ACSC by discharge disposition,b % | |||||
| Admitted | 59.9 | 62.4 | 65.4 | 70.5 | 57.4 |
| Died | 0.5 | 0.4 | 0.4 | 0.2 | 1.1 |
| Other | 39.7 | 37.1 | 34.2 | 29.2 | 41.5 |
| ED visits for a CKD-related ACSC by acuity level,b % | |||||
| Nonurgent | 4.8 | 4.8 | 4.2 | 1.5 | 1.4 |
| Semiurgent | 15.8 | 15.1 | 14.7 | 15.1 | 7.3 |
| Urgent | 43.7 | 43.0 | 44.0 | 44.9 | 43.5 |
| Emergency | 30.3 | 30.8 | 32.3 | 32.5 | 42.3 |
| Resuscitation | 1.6 | 1.8 | 2.0 | 3.2 | 3.5 |
| Unknown | 3.7 | 4.5 | 2.8 | 2.8 | 2.0 |
| ED visits for a CKD-related ACSC by type of ACSC,a n (%) | |||||
| Heart failure | 5896 (88.2) | 5163 (85.9) | 2715 (80.7) | 309 (66.5) | 264 (40.7) |
| Hyperkalemia | 809 (12.1) | 896 (14.9) | 645 (19.2) | 148 (31.8) | 316 (48.8) |
| Volume overload | 39 (0.6) | 30 (0.5) | 62 (1.8) | 23 (4.9) | 109 (16.8) |
| Malignant hypertension | 24 (0.4) | 8 (0.1) | 8 (0.2) | 1 (0.2) | 2 (0.3) |
ED, emergency department; ACSC, ambulatory care-sensitive condition; 95% CI, 95% confidence interval.
a
The number represents the number of days with at least one CKD-related ACSC ED visit of that type, and therefore, the total number of CKD-related ACSC ED visits does not equal the total across type of ACSC.
b
Where there was more than one ED visit in a day, the one that was counted was the one rated with the highest acuity or the one with the most serious discharge disposition.