Table 5.
Circumstances for eGFR reporting, estimating equation used, and reporting convention, by laboratory strata
| Circumstances for reporting** | Equation used*** | Reporting convention**** | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Stratum** | All % (95% CI) | When requested % (95% CI) | Other % (95% CI) | Total (n)* | 4-variable MDRD % (95% CI) | Other % (95% CI) | Not sure % (95% CI) | Total (n)* | > 60 mL/min/1.732 % (95% CI) | > 90 mL/min/1.732% (95% CI) | Exact number % (95% CI) | Don’t know % (95% CI) | Total (n)* |
| Physician office | 65.8 (57.6 – 74.0) | 25.4 (17.9 – 33.0) | 8.8 (3.9 – 13.7) | 114 | 70.4 (62.6 – 78.3) | 13.9 (7.9 – 19.9) | 15.7 (9.4 – 21.9) | 115 | 36.2 (27.9 – 44.4) | 5.2 (1.4 – 9.0) | 46.6 (38.0 – 55.1) | 12.1 (6.5 – 17.7) | 116 |
| Hospital | 68.8 (64.7 – 72.9) | 21.7 (18.1 – 25.4) | 9.4 (6.8 – 12.0) | 414 | 76.2 (72.4 – 79.9) | 14.3 (11.2 – 17.4) | 9.5 (6.9 – 12.1) | 420 | 49.2 (44.8 – 53.6) | 5.3 (3.3 – 7.2) | 37.4 (33.1 – 41.7) | 8.2 (5.7 – 10.6) | 417 |
| Independent | 50.6 (44.3 – 56.8) | 45.5 (39.2 – 51.7) | 4.0 (1.5 – 6.4) | 176 | 72.9 (67.3 – 78.4) | 11.9 (7.8 – 15.9) | 15.3 (10.8 – 19.7) | 177 | 46.0 (39.8 – 52.6) | 8.0 (4.6 – 1.3) | 35.8 (29.8 – 41.8) | 10.2 (6.4 – 14.0) | 176 |
| Community Clinic | 79.2 (73.5 – 85.0) | 17.9 (12.4 – 23.4) | 2.8 (0.5 – 5.2) | 106 | 58.1 (51.1 – 65.1) | 16.2 (11.0 – 21.4) | 25.7 (19.5 – 31.9) | 105 | 28.3 (21.9 – 34.7) | 9.4 (5.3 – 13.6) | 50.0 (42.9 – 57.1) | 12.3 (7.6 – 16.9) | 106 |
| Health fair Insurance Public health | 100.0 (100.0 – 100.0) | 0 | 0 | 5 | 80.0 (54.3 – 100) | 0 | 20.0 (0.0 – 45.7) | 5 | 60.0 (28.5 – 91.5) | 0 | 40.0 (8.6 – 71.5) | 0.0 | 5 |
| Other | 69.1 (62.9 – 75.3) | 21.6 (16.1 – 27.1) | 9.3 (5.4 – 13.2) | 162 | 58.3 (51.7 – 64.9) | 16.6 (11.6 – 21.5) | 25.1 (19.3 – 31.0) | 163 | 47.5 (40.8 – 54.2) | 3.1 (0.8 – 5.4) | 31.5 (25.2 – 37.7) | 17.9 (12.8 – 23.0) | 162 |
|
| |||||||||||||
| Overall % ***** | 66.7 (63.8 – 69.5) | 25.0 (22.5 – 27.6) | 8.3 (6.6 – 10.0) | 977 | 71.6 (69.0 – 74.3) | 14.3 (12.2 – 16.4) | 14.1 (12.1 – 16.1) | 985 | 45.3 (42.3 – 48.3) | 5.5 (4.1 – 6.8) | 38.7 (35.7 – 41.6) | 10.5 (8.7 – 12.3) | 982 |
Circumstances for reporting: 992 laboratories answered that they report eGFR. This table excludes 1 laboratory that skipped the question, 8 that answered “do not know,” and 6 that supplied answers that did not make sense; p < 0.001 for comparison over stratum. Pair-wise comparisons were calculated for reporting eGFR for all tests vs. when requested or other for the first 4 strata. P = 0.04 for independent comparison to physician office lab (POL), p < 0.001 for independent comparison to community clinic and to hospital. P = 0.5 for POL comparison to hospital, p = 0.08 for POL comparison to clinic, and p = 0.08 for hospital comparison to clinic.
Equation used: This table excludes 7 laboratories that skipped the question; p < 0.001 for comparison over stratum.
Reporting convention: This table excludes 10 laboratories that skipped the question; p = 0.001 for comparison over stratum. Pair-wise comparisons were calculated for >60 vs. exact for the first 4 strata. P = 0.004 for clinic comparison to hospital, p = 0.02 for clinic comparison to independent, p = 0.09 for POL comparison to hospital, p = 0.2 for POL comparison to independent, p = 0.6 for POL comparison to clinic, and p = 0.9 for hospital comparison to independent.
Weighted percentage.