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Table 1 Characteristics of trauma patients, in relation to response and composition of those included in analysis

From: Quality of life and level of post-traumatic stress disorder among trauma patients: A comparative study between a regional and a university hospital

Variables   Comparison
  Included for analysis Responders (returned questionnaire) Nonresponders p-value
Total 455 508 (65.6%) 266 (34.4%)  
Hospital trauma level   p = 0.108*
University trauma centre 235 262 (68.4%) 121 (31.6%)  
Regional trauma centre 220 246 (62.9%) 145 (37.1%)
Study groups   p = 0.000*
12–17 months 280 312 (71.2%) 126 (28.8%)  
18–24 months 175 196 (58.3%) 140 (41.7%)
Sex   p = 0.009*
Male 309 340 (62.7%) 202 (37.3%)  
Female 146 168 (72.4%) 64 (27.6%)
Age at trauma - Grouped   p = 0.000*
16–39 years 192 205 (54.1%) 174 (45.9%)  
40–59 years 166 182 (73.4%) 66 (26.6%)
60+ years 97 121 (82.3%) 26 (17.7%)
Other characteristics
 NISS**   p = 0.001*
 NISS < 15 316 346 (62.1%) 211 (37.9%)  
 NISS > 15 139 162 (74.7%) 55 (25.3%)
 Traffic, % (n)** 258 290 (62.8%) 172 (37.2%) p = 0.041*
 ICU** 71 81 (72.3%) 31 (27.7%) p = 0.107*
 Glasgow Outcome Scale**   p = 0.003*
 GOS 3 37 46 (71.9%) 18 (28.1%)  
 GOS 4 97 114 (76.0%) 36 (24.0%)
 GOS 5 280 302 (61.5%) 189 (38.5%)
  1. Characteristics in relation to response and composition of those included in analysis
  2. All patients n = 774 – included in analysis were those with completed EQ5D AND PCL: n = 455*chi2 within each variable except traffic and ICU, where p-values was compared to non traffic /ICU
  3. **Groups not equal to total (n = 774) due to missing data
  4. NISS New Injury Severity Score, ICU Intensive care unit stay > 2 days
  5. GOS 3 severe disability, GOS 4 moderate disability, GOS 5 good recovery