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Table 1 Descriptive profile of individual and multi-level measures included in this analysis

From: Do neighborhood demographics, crime rates, and alcohol outlet density predict incidence, severity, and outcome of hospitalization for traumatic injury? A cross-sectional study of Dallas County, Texas, 2010

  n (%) Mean (95% CI) or median (range)+
Outcomes   
 Mortality (discharged as ‘dead’) 151 (3.5)  
 Hospitalizations for traumatic injury/100,000 - Median, 263.46; range, 21.15 to 1,560.14
 Trauma patients/census tract - Median, 11; range, 1 to 58
 Trauma Mortality Prediction Model p(death) - Median, 1.57%; range, 0.001% to 94.01%
Independent variables: contextual   
 Census measures: socioeconomic indicators   
  % Owner-occupied housing - 54.3 (52.0 to 56.7)
  % of Population less than 18 years old - 26.4 (25.7 to 27.2)
  % Estimated living below poverty level - 18.7 (17.6 to 19.9)
  % Unemployed (previous 12 months) - 7.7 (7.3 to 8.1)
  % High school graduates - 75.8 (74.3 to 77.4)
  Median annual household ($) - Median, $46,188; range, $11,875 to $247,292
  Alcohol outlets/100,000 population - 49.8 (41.9 to 57.7)
  Dallas county UCR crime rate/100,000 population   8,823 (7,753 to 9,893)
Independent variables: demographic   -
  Population density (population/square mile) - 5,304.7 (4,937.5 to 5,671.8)
  % White race - 58.4 (56.3 to 60.4)
  % Black race - 21.2 (19.2 to 23.3)
  % Hispanic/Latino - 36.0 (33.7 to 38.2)
  % Other races/multiracial   5.00 (4.5 to 5.6)
  % 65 and older - 9.4 (8.8 to 9.9)
Independent variables: individual level   
 Demographic   
  Sex (male) 2,497 (56.8)  
  Age (years) - 52.9 (52.2 to 53.6)
 Race/ethnicity   
  White 2,167 (49.3) -
  Hispanic/Latino 1,118 (25.4) -
  Black 889 (20.2) -
  Other races/multiracial 221 (5.0) -
 Mechanism of injury/hospital records   
  Blunt 2,599 (59.4) -
  Penetrating 288 (6.6) -
  Other/unknown 1,608 (34.3) -
  Elixhauser Comorbidity Score - Median, 2; range, 0 to 12
  Alcohol intoxication at hospital 450 (10.2) -
  Length of hospital stay (days) - 5.8 (5.5 to 6.0)
  1. +, means are presented unless otherwise specified.