Table 1: Patient demographics: TDC versus UOS.

Total (N=438)TDC (n=332)UOS (n=106)P value

Age (years)51.0±15.649.8±15.654.7±15.00.005

Female gender347 (79.2%)269 (81.0%)78 (73.6%)0.129

BMI (Kg/m2)
Mean ± SD29.9±5.529.8±5.430.5±5.90.256
<18.52 (0.5%)1 (0.3%)1 (0.9%)0.426
18.5-24.967 (15.3%)56 (16.9%)11 (10.4%)0.122
25.0-29.9164 (37.4%)122 (36.7%)42 (39.6%)0.645
30.0-34.9113 (25.8%)83 (25.0%)30 (28.3%)0.525
≥35.092 (21.0%)70 (21.1%)22 (20.8%)1.000

ASA
1184 (42.0%)154 (46.4%)30 (28.3%)0.001
2232 (53.0%)163 (49.1%)69 (65.1%)0.005
322 (5.0%)15 (4.5%)7 (6.6%)0.443