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Table 2 The basic characteristics of responders who reported to have at least one traffic crash during the preceding year in comparison with those who did not report any crashes

From: Association of waterpipe smoking and road traffic crashes

Variable Levels Any RTC 308 (14.9%) No RTC 1762 (85.1%) Total N (%) Odds Ratio(0.95 CI) P value
Gender Male 266 (15.4) 1459 (84.6) 1724 (83.3) M/F: 1.61 (1.10 - 2.43) 0.012
  Female 34 (10.1) 301 (89.9) 346 (16.2)   
  Missing 8 2    
daily drive time (DDT) >12 0 (0.0) 52 (100.0) 52 (2.6) Mantel-Hanszel OR: 1.03 (0.91-1.17) 0.011
  8.1-12 15 (11.3) 118 (88.7) 133 (8.4)   
  3.1-8 103 (21.5) 376 (78.5) 479 (30.3)   
  1.1-3 127 (14.4) 755 (85.6) 882 (43.8)   
  ≤1 60 (12.7) 410 (87.3) 470 (23.3)   
  Missing 3 51    
vehicle age ≥ 5 Yrs 77 (16.9) 378 (83.1) 455 (22.4) 1.22 ( 0.91 - 1.63) 0.168
  <5 Yrs 226 (14.3) 1353 (85.7) 1579 (77.6)   
  Missing 5 31    
ABS Brakes No 191 (10.5) 1636 (89.5) 1827 (92.7) 0.64 (0.39 - 1.09) 0.070
  Yes 22 (15.4) 121 (84.6) 143 (7.3)   
  Missing 95 5    
Cigarette smoking Yes 82 (20.9) 311 (79.1) 393 (19.3) 1.68 (1.25 - 2.25) <0.001
  No 223 (13.5) 1424 (86.5) 1647 (80.7)   
  Missing 3 27    
Water pipe smoking Yes 42 (27.8) 109 (72.2) 151 (7.4) 2.41 (1.61 - 3.57) <0.001
  No 260 (13.8) 1629 (86.2) 1889 (92.6)   
  Missing 6 24    
Diabetes Diabetic 14 (25.9) 40 (74.1) 54 (2.6) 2.07 (1.02 - 3.97) 0.030
  Non diabetic 220 (14.4) 1304 (85.6) 1524 (73.6)   
  Don't know 74 (15.0) 418 (85.0) 492 (23.8)   
Driver's age   41.8 (± 11.53) 40.7 (± 11.05) 41.6 ± 11.45   0.881