Table 2 Demographic information about patients undergoing Total Knee Arthroplasty
From: The impact of dehydration on short-term postoperative complications in total knee arthroplasty
Dehydration level | |||||
|---|---|---|---|---|---|
None | Moderate | Severe | |||
Age | Mean | 65.4 | 67.6 | 68.5 | |
St. dev. | 9.6 | 9.1 | 8.9 | ||
Count | 184,055 | 90,163 | 70,359 | ||
Body Mass Index (BMI) | Mean | 33.2 | 33.0 | 32.8 | |
St. dev. | 6.7 | 6.8 | 6.9 | ||
Count | 183,653 | 89,950 | 70,206 | ||
Sex p < 0.001 | Female | Count | 83,859 | 28,703 | 13,626 |
Percent | 45.5% | 31.8% | 19.3% | ||
Male | Count | 100,195 | 61,474 | 56,768 | |
Percent | 54.4% | 68.1% | 80.6% | ||
Non-binary | Count | 3 | 1 | 1 | |
Percent | 0.002% | 0.001% | 0.001% | ||
Not reported | Count | 57 | 32 | 25 | |
Percent | 0.03% | 0.04% | 0.04% | ||
Discharge destination p < 0.001 | Home | Count | 145,280 | 69,145 | 52,023 |
Percent | 78.9% | 76.6% | 73.9% | ||
Facility Which was Home | Count | 863 | 410 | 351 | |
Percent | 0.5% | 0.5% | 0.5% | ||
Multi-level Senior Community | Count | 20 | 9 | 7 | |
Percent | 0.01% | 0.01% | 0.01% | ||
Skilled Care, Not Home | Count | 19,769 | 11,036 | 9798 | |
Percent | 10.7% | 12.2% | 13.9% | ||
Rehab. | Count | 11,126 | 6127 | 5664 | |
Percent | 6.0% | 6.8% | 8.0% | ||
Separate Acute Care | Count | 262 | 142 | 104 | |
Percent | 0.1% | 0.2% | 0.1% | ||
Hospice | Count | 6 | 2 | 4 | |
Percent | 0.003% | 0.002% | 0.006% | ||
AMA | Count | 20 | 7 | 1 | |
Percent | 0.011% | 0.008% | 0.001% | ||
Expired | Count | 41 | 27 | 17 | |
Percent | 0.02% | 0.03% | 0.02% | ||
Unknown | Count | 43 | 18 | 6 | |
Percent | 0.02% | 0.02% | 0.01% | ||
Unskilled Facility Not Home | Count | 157 | 102 | 74 | |
Percent | 0.1% | 0.1% | 0.1% | ||
Not reported | Count | 6527 | 3185 | 2371 | |
Percent | 3.5% | 3.5% | 3.4% | ||
Functional status prior to surgery p < 0.001 | Independent | Count | 181,109 | 88,755 | 69,180 |
Percent | 98.4% | 98.4% | 98.2% | ||
Partially Dependent | Count | 1972 | 1005 | 880 | |
Percent | 1.1% | 1.1% | 1.2% | ||
Totally Dependent | Count | 52 | 32 | 38 | |
Percent | 0.03% | 0.04% | 0.05% | ||
Unknown | Count | 981 | 418 | 322 | |
Percent | 0.5% | 0.5% | 0.5% | ||
Anesthesia type p < 0.001 | General | Count | 87,777 | 40,191 | 30,633 |
Percent | 47.7% | 44.6% | 43.5% | ||
Monitored Anesthetisia Care (MAC)/Intravenous(IV) Sedation | Count | 24,049 | 11,898 | 9192 | |
Percent | 13.1% | 13.2% | 13.1% | ||
Regional | Count | 3026 | 1451 | 1183 | |
Percent | 1.6% | 1.6% | 1.7% | ||
Spinal | Count | 67,337 | 35,709 | 28,691 | |
Percent | 36.6% | 39.6% | 40.7% | ||
Epidural | Count | 1626 | 848 | 631 | |
Percent | 0.9% | 0.9% | 0.9% | ||
Local | Count | 52 | 28 | 23 | |
Percent | 0.03% | 0.03% | 0.03% | ||
Other | Count | 171 | 51 | 41 | |
Percent | 0.1% | 0.1% | 0.1% | ||
None | Count | 46 | 23 | 17 | |
Percent | 0.02% | 0.03% | 0.02% | ||
Unknown | Count | 22 | 5 | 6 | |
Percent | 0.01% | 0.01% | 0.01% | ||
Not reported | Count | 8 | 6 | 3 | |
Percent | 0.0% | 0.0% | 0.0% | ||
Diabetes management p < 0.001 | None | Count | 152,605 | 74,217 | 57,826 |
Percent | 82.9% | 82.3% | 82.1% | ||
Non-insulin | Count | 24,080 | 12,285 | 9600 | |
Percent | 13.1% | 13.6% | 13.6% | ||
Insulin | Count | 6938 | 3446 | 2763 | |
Percent | 3.8% | 3.8% | 3.9% | ||
Oral | Count | 491 | 262 | 231 | |
Percent | 0.3% | 0.3% | 0.3% | ||
History of dyspnea p < 0.001 | No | Count | 173,717 | 85,284 | 66,745 |
Percent | 94.4% | 94.5% | 94.8% | ||
At rest | Count | 358 | 137 | 111 | |
Percent | 0.2% | 0.2% | 0.2% | ||
Moderate | Count | 10,039 | 4789 | 3564 | |
Percent | 5.5% | 5.3% | 5.1% | ||
Smoking history within 1 year p < 0.001 | No | Count | 164,847 | 84,467 | 66,684 |
Percent | 89.5% | 93.6% | 94.7% | ||
Yes | Count | 19,267 | 5743 | 3736 | |
Percent | 10.5% | 6.4% | 5.3% | ||