Table 1 Characteristics of VA VASQIP patients receiving TKA or THA by OA or RA diagnosis
OA (n = 33,685) | RA (n = 839) | P-value | |||||
|---|---|---|---|---|---|---|---|
Missing | Mean | SD | Missing | Mean | SD | ||
Demographics and comorbidity | |||||||
Age (years) | 0 | 64.49 | 10.72 | 0 | 62.19 | 10.55 | <0.001 |
Male sex (%) | 0 | 95.73 | 0 | 93.09 | <0.001 | ||
Caucasian (%) | 2,236 | 72.73 | 49 | 76.08 | 0.037 | ||
Alcohol consumption (%) | 348 | 7.66 | 6 | 4.08 | <0.001 | ||
Current smoker (%) | 204 | 24.23 | 3 | 22.85 | 0.356 | ||
Diabetes mellitus (%) | 204 | 16.88 | 3 | 12.20 | <0.001 | ||
COPD (%) | 1 | 9.67 | 1 | 10.74 | 0.301 | ||
Operation time (hours) | 1 | 2.26 | 0.76 | 0 | 2.29 | 0.77 | 0.248 |
Low-dose aspirin (%) | 0 | 38.09 | 0 | 27.89 | <0.001 | ||
Poor functional health (%) | 0 | 5.28 | 0 | 9.06 | <0.001 | ||
Short of breath, dyspnea ≥2 (%) | 274 | 11.17 | 8 | 9.63 | 0.162 | ||
General anesthesia (%) | 0 | 69.39 | 0 | 70.92 | 0.343 | ||
Bleeding disorders (%) | 206 | 1.34 | 4 | 1.44 | 0.812 | ||
Chemotherapy <30 days pre-op (%) | 206 | 0.22 | 5 | 3.60 | <0.001 | ||
CHF <30 days pre-op (%) | 3 | 0.77 | 1 | 0.84 | 0.820 | ||
TIA history (%) | 211 | 2.18 | 4 | 2.04 | 0.773 | ||
CVA/Stroke with neurologic deficit (%) | 209 | 2.02 | 4 | 1.44 | 0.234 | ||
CVA/Stroke without neurologic deficit (%) | 209 | 2.29 | 4 | 2.75 | 0.375 | ||
GCS use before surgery | |||||||
≤30 days | 0 | 5.70 | 0 | 49.94 | <0.001 | ||
≤0.5 year | 0 | 11.68 | 0 | 62.22 | <0.001 | ||
≤1 year | 0 | 16.03 | 0 | 67.70 | <0.001 | ||
At surgery interview (VASQIP) | 0 | 1.16 | 0 | 41.12 | <0.001 | ||
VASQIP or ≤1 year | 0 | 16.42 | 0 | 69.25 | <0.001 | ||
VASQIP and ≤1 year | 0 | 0.77 | 0 | 39.45 | <0.001 | ||
Abnormal pre-op laboratory | |||||||
Hematocrit ≤38% (%) | 693 | 15.43 | 13 | 30.51 | <0.001 | ||
White blood cells >11,000/μl (%) | 890 | 3.85 | 16 | 10.45 | <0.001 | ||
Platelets ≤150,000/μl (%) | 1,175 | 5.71 | 20 | 3.30 | 0.003 | ||
Creatinine >1.2 mg/dl (%) | 1,533 | 31.33 | 34 | 23.85 | <0.001 | ||
Serum sodium ≤135 mM (%) | 1,905 | 7.24 | 43 | 8.54 | 0.163 | ||
Serum sodium >145 mM (%) | 1,905 | 1.63 | 43 | 1.01 | 0.165 | ||
Blood urea nitrogen >40 mg/dl (%) | 2,990 | 0.93 | 80 | 0.79 | 0.689 | ||