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Table 1 Demographic and clinical data

From: National trends in emergency room diagnosis of pulmonary embolism, 2001–2010: a cross-sectional study

   ED visits for PE All other ED visits
Characteristic   No. of obs. Weighted % (±95% CI) Weighted % (±95% CI) P-value
Overall   283 0.08% 0.01% 99.92% (0.77%)  
Sex Male 123 45.2% (3.8%) 45.8% (0.7%) 0.88
  Female 160 54.8% (3.8%) 54.2% (0.7%)  
Age category Under 65 years 162 55.8% (3.4%) 85.2% (0.2%) <0.0001
  65 years and over 121 44.2% (3.4%) 14.8% (0.2%)  
Race/ethnicity White 223 80.1% (3.2%) 73.8% (1.1%) 0.022
  Black 55 19.1% (3.2%) 22.7% (1.1%)  
  Other 5 0.8% ** 3.5% (0.3%)  
Payment source Private insurance 104 36.4% (3.3%) 37.0% (0.5%) <0.0001
  Medicare/Medicaid 148 55.6% (3.1%) 41.6% (0.5%)  
  Other 26 8.0% ** 21.5% (0.4%)  
Region Northeast 55 17.4% (3.4%) 19.0% (1.7%) 0.021
  Midwest 85 29.9% (4.6%) 22.9% (2.4%)  
  South 81 29.0% (5.3%) 39.8% (2.7%)  
  West 62 23.8% (4.6%) 18.3% (1.9%)  
Hemodynamics Unstable 71 24.9% (3.5%) 24.7% (0.3%) 0.96
  Stable 203 75.1% (3.5%) 75.3% (0.3%)  
CT or MRI Yes 154 57.7% (4.0%) 11.6% (0.3%) <0.0001
  No 129 42.3% (4.0%) 88.4% (0.3%)  
Disposition Admission/Transfer 233 86.3% (2.7%) 14.7% (0.3%) <0.0001
Other 43 10.4% (2.0%) 85.1% (0.3%)  
  Death on Arrival/in ED 7 3.4% ** 0.2% (0.01%)  
MSA MSA 243 85.5% (4.5%) 83.4% (3.3%) 0.57
  Non-MSA 40 14.5% (4.5%) 16.6% (3.3%)  
  1. **Indicates insufficient observations to generate reliable confidence intervals. ED = emergency department; No. = number; Obs. = observations; CT = computed tomography; MRI = magnetic resonance imaging; MSA = Metropolitan Statistical Area.
  2. Summary of demographic, clinical and hospital data for visits with a diagnosis of PE and all other ED visits for comparison.