Factor | No DVT | DVT | Statistic | p* | Relative Risk for DVT/PE | 95% Confidence Interval |
---|---|---|---|---|---|---|
Length of Stay (days) | 8.6 (14) | 22.8 (20) | t(2434)=-5.2 | p<.0001 (<0.001) | ||
Age (years) | 71.3 (16) | 70.7 (18) | t(2500)=0.21 | NS | ||
Race | -- | -- | χ2=1.7 df=6 | NS | ||
Gender | 56% female | 52% female | χ2=0.25 | NS | 1.08 female | 0.78-1.5 female |
Height (inches) | 65.9 (6.2) | 66.6 (3) | t(2460)=-0.64 | NS | ||
Weight (pounds) | 167 (45) | 182 (66) | t(2471)=-1.85 | p=0.06 (0.5) | ||
BMI | 27 (6) | 28 (9) | t(2456)=-0.14 | NS | ||
Afib/Flutter | 0.18 | 0.21 | χ2=0.28 | NS | 1.25 | 0.54-2.9 |
Heart Failure | 0.06 | 0.15 | χ2=4.22 | p=0.04 (0.06) | 2.65 | 1.01-7.0 |
Prior TIA | 0.13 | 0.1 | χ2=0.45 | NS | 2.2 | 0.2-2.2 |
CAD/MI | 0.23 | 0.24 | χ2=0.01 | NS | 1.05 | 0.47-2.7 |
Diabetes | 0.25 | 0.24 | χ2=0.02 | NS | 0.95 | 0.43-2.1 |
Hypertension | 0.69 | 0.73 | χ2=0.19 | NS | 1.2 | 0.55-2.6 |
Peripheral Vascular Disease | 0.02 | 0.0 | χ2=0.70 | NS | 0.987 | 0.98-0.991 |
Smoking | 0.09 | 0.06 | χ2=0.37 | NS | 0.64 | 0.15-2.7 |
Carotid Stenosis | 0.02 | 0.00 | χ2=0.75 | NS | 0.987 | 0.98-0.991 |
Prior CVA | 0.15 | 0.21 | χ2=1.6 | NS | 1.7 | 0.7-4.0 |
Prosthetic Heart Valve | 0.025 | 0.03 | χ2=0.04 | NS | 1.2 | 0.16-9.0 |
Initial NIHSS | 5.8 (6.5) | 11.4 (6) | t(1145)=-2.84 | p=0.0046 (0.002) | ||
Discharge NIHSS | 2.8 (5) | 9.8 (9.8) | t(853)=-2.8 | p=0.005 (0.07) | ||
Weakness | 0.42 | 0.27 | χ2=3.01 | p=0.08 (0.11) | 0.5 | 0.2-1.1 |
Altered LOC | 0.14 | 0.30 | χ2=7.13 | p=0.0076 (0.02) | 2.7 | 1.3-5.7 |
Aphasia | 0.27 | 0.24 | χ2=0.12 | NS | 0.87 | 1.9 |
Ambulatory by Day 2 | 0.254 | 0.1 | χ2=4.6 | p=0.03 (0.04) | 0.29 | 0.09-0.96 |
Heparin or LMWH | 0.44 | 0.36 | χ2=0.74 | NS | 0.73 | 0.36-1.5 |
Serial Compression Devices | 0.37 | 0.33 | χ2=0.65 | NS | 0.73 | 0.34-1.6 |
Warfarin | 0.026 | 0.03 | χ2=0.02 | NS | 1.2 | 0.16-8.6 |
Hyperlipidemia | 0.33 | 0.36 | χ2=0.2 | NS | 1.18 | 0.52-2.4 |