From: The impact of dehydration on short-term postoperative complications in total knee arthroplasty
A. Full cohort BUN/Cr | |||
Count | Percent | ||
Dehydration level | None (BUN/Cr < 20) | 184,114 | 53.4% |
Moderate (25 > BUN/Cr ≥ 20) | 90,210 | 26.2% | |
Severe (BUN/Cr ≥ 25) | 70,420 | 20.4% | |
Total | 344,744 | 100.0% | |
B. ≥65 years subgroup BUN/Cr | |||
Count | Percent | ||
Dehydration level | None (BUN/Cr < 20) | 81,445 | 56.7% |
Moderate (25 > BUN/Cr ≥ 20) | 39,217 | 27.3% | |
Severe (BUN/Cr ≥ 25) | 23,062 | 16.0% | |
Total | 143,724 | 100.0% |