Table 2 Frequency of laboratory tests
CKD related lab tests | Percent of CKD patients who had lab test and did or did not see a nephrologist, by stage | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Stage 3a | Stage 3b | Stage 4 | Stage 5 | All stages | ||||||
(n = 13,648) | (n = 5178) | (n = 1292) | (n = 220) | (n = 20,338) | ||||||
No | Yes | No | Yes | No | Yes | No | Yes | No | Yes | |
Hemoglobin | 84.9 % | 92.8 % | 85.3 % | 93.9 % | 83.6 % | 95.3 % | 92.9 % | 89.3 % | 85.0 % | 93.5 % |
Iron | 15.7 % | 34.1 % | 19.6 % | 42.6 % | 20.4 % | 55.1 % | 33.7 % | 41.3 % | 16.6 % | 41.4 % |
Total iron binding capacity | 12.8 % | 31.3 % | 4.4 % | 39.9 % | 0.6 % | 53.5 % | <0.01 % | 39.8 % | 13.6 % | 38.8 % |
Ferritin | 13.8 % | 30.7 % | 17.7 % | 38.2 % | 15.6 % | 51.9 % | 21.4 % | 38.8 % | 14.7 % | 37.6 % |
Calcium | 99.6 % | 99.6 % | 99.5 % | 99.8 % | 98.9 % | 99.8 % | 100.0 % | 100.0 % | 99.6 % | 99.7 % |
Phosphate | 6.0 % | 52.7 % | 7.6 % | 64.0 % | 10.8 % | 73.9 % | 24.1 % | 60.8 % | 6.5 % | 61.5 % |
Vitamin D | 47.2 % | 54.4 % | 42.6 % | 56.3 % | 36.8 % | 54.9 % | 21.4 % | 35.4 % | 45.9 % | 54.5 % |
PTH | 6.5 % | 35.8 % | 8.3 % | 51.9 % | 10.6 % | 64.2 % | 7.1 % | 49.0 % | 7.0 % | 47.5 % |
Albumin | 95.2 % | 97.4 % | 93.8 % | 97.3 % | 93.4 % | 96.7 % | 100.0 % | 91.7 % | 94.9 % | 97.0 % |
ACR | 28.9 % | 49.0 % | 8.2 % | 49.5 % | 0.9 % | 44.5 % | <0.01 % | 23.8 % | 29.0 % | 47.4 % |
A1c | 49.3 % | 62.3 % | 49.1 % | 61.6 % | 47.4 % | 58.1 % | 50.0 % | 45.1 % | 49.2 % | 60.6 % |