Table 1. Distribution of dogs with chronic kidney disease according to laboratory and nutrition parameters and their influence on survival.
| Item | N. dogs (%) | Survival median (days) | p | |
|---|---|---|---|---|
| Stage1 | 2 | 50 (43.1) | 475a | <0.0001 |
| 3 | 43 (37.1) | 187b | ||
| 4 | 23 (19.8) | 13c | ||
| BCS2 | 1 to 3 | 48 (41.4) | 125a | 0.0391 |
| 4 and 5 | 35 (30.2) | 103a | ||
| 6 to 9 | 33 (28.4) | 327b | ||
| MMS3 | 0 | 9 (7.8) | 45a | 0.0002 |
| 1 | 34 (29.2) | 122a | ||
| 2 | 51 (44.0) | 206b | ||
| 3 | 22 (19.0) | 255c | ||
| Serum phosphorus4 | ≤ 5.5mg/dL | 31 (48.4) | 573 | 0.0005 |
| > 5.5mg/dL | 33 (51.6) | 136 | ||
| Hematocrit4 | ≤ 37% | 59 (53.6) | 99 | 0.0001 |
| > 37% | 51 (46.4) | 415 | ||
| Serum albumin4 | ≤ 2.3g/dL | 18 (17.5) | 128 | 0.2260 |
| > 2.3g/dL | 85 (82.5) | 263 | ||
| Appetite | Anorexia | 38 (32.8) | 33a | 0.0007 |
| Hyporexia | 38 (32.8) | 246b | ||
| No alteration | 40 (34.4) | 429b | ||
| Feeding method | Feeding tube | 41 (35.4) | 32 | <0.0001 |
| Voluntary | 75 (64.6) | 309 | ||
| Type of food5 | Renal6 | 63 (54.3) | 309 | 0.0009 |
| Other | 53 (45.7) | 92 | ||
1Staging according to IRIS [10]
2Body condition score according to Laflamme [20]
3Muscle mass score according to Michel et al. [21]
4Data not present for all dogs in the study
5Type of food consumed for 75% of the survival time or more
6Commercial or homemade diet formulated by the veterinarians of the Nutrology Service team of the hospital (16% crude protein and 0.3% phosphorus in dry matter basis)
a,b,cMedians with more than two variables with different letters were statistically different (p≤0.05).