Table 1:
Characteristics of 2672 patients referred for chronic kidney disease by primary care physicians before and after automatic reporting of the estimated glomerular filtration rate by laboratories was introduced
| Characteristic | Period; no. (%) of referrals* | p value | |
|---|---|---|---|
| Before reporting began n = 1207 |
After reporting began n = 1465 |
||
| Age, yr | |||
| < 50 | 220 (18.2) | 218 (14.9) | 0.02 |
| 50–64 | 272 (22.5) | 309 (21.1) | 0.4 |
| 65–79 | 504 (41.8) | 564 (38.5) | 0.1 |
| ≥ 80 | 211 (17.5) | 374 (25.5) | < 0.001 |
| Median (IQR) | 68.9 (55.2–80) | 71.2 (58.4–80.2) | < 0.001 |
| Sex, female | 503 (41.7) | 795 (54.3) | < 0.001 |
| Serum creatinine, μmol/L | n = 1137 | n = 1352 | |
| > 150 | 417 (36.7) | 492 (36.4) | 0.9 |
| ≤ 150 | 720 (63.3) | 860 (63.6) | 0.9 |
| Median (IQR) | 133 (105–166) | 135 (109–168) | 0.1 |
| Estimated GFR, mL/min per 1.73 m2 | n = 1137 | n = 1352 | |
| < 30 | 214 (18.8) | 322 (23.8) | 0.003 |
| 30–59 | 644 (56.6) | 796 (58.9) | 0.3 |
| ≥ 60 | 279 (24.5) | 234 (17.3) | < 0.001 |
| Median (IQR) | 44.7 (33.3–59.7) | 41.8 (30.7–54.6) | 0.01 |
| Protein excretion, g/d | n = 588 | n = 697 | |
| Median (IQR) | 0.17 (0.08–0.45) | 0.14 (0.04–0.44) | 0.9 |
Note: GFR = glomerular filtration rate, IQR = interquartile range.
*
Unless stated otherwise.