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Table 1 Passenger, driver, vehicle and crash characteristics for rear-seated passengers involved in side crashes, NASS/GES 2011–2014

From: Side impact motor vehicle crashes: driver, passenger, vehicle and crash characteristics for fatally and nonfatally-injured rear-seated adults

  Belted Unbelted Total  
  No/Minor injury Severe/Fatal Injury No/Minor injury Severe/Fatal Injury   
  n (%) n (%) n (%) n (%) n (%) Chisq (p-value)a
Totalb, c 361,170 (91.3) 3,924 (1.0) 27,918 (7.1) 2,492 (0.6) 395,504 (100.0)  
Passenger Characteristics (n=395,504)
 Age       0.2 (0.95)
  18–24 154,228 (42.7) 1,659 (42.3) 15,302 (54.8) 909 (36.5) 172,098 (43.5)  
  25–44 111,107 (30.8) 1,043 (26.6) 8,833 (31.6) 1,083 (43.5) 122,067 (30.8)  
  45–64 62,810 (17.4) 745 (19.0) 2,980 (10.7) 426 (17.1) 66,960 (16.9)  
  65+ 33,026 (9.1) 477 (12.2) 803 (2.9) 74 (3.0) 34380 (8.7)  
 Gender       0.006 (0.92)
  Male 164,163 (45.6) 1,623 (41.5) 13,047 (46.7) 1,234 (49.5) 180,067 (45.6)  
 Seating Position       0.07 (0.92)
  Left seated 143,658 (39.9) 1,556 (39.9) 11,069 (40.7) 914 (38.8) 157,197 (39.9)  
  Middle seated 25,099 (7.0) 118 (3.0) 3,515 (12.9) 330 (14.0) 29,062 (7.4)  
  Right seated 191,408 (53.1) 2,228 (57.1) 12,595 (46.3) 1,111 (47.2) 207,341 (52.7)  
Driver Characteristics (n=284,554)
 Age       0.9 (0.48)
  15–19 32,639 (13.6) 337 (12.0) 2,791 (15.7) 225 (11.8) 38,041 (13.4)  
  20–44 129,185 (53.8) 1,339 (48.0) 9,699 (54.7) 1,274 (67.1) 153,703 (54.5)  
  45–64 57,849 (24.1) 715 (25.6) 4,486 (25.3) 349 (18.4) 68,002 (24.1)  
  65+ 20,287 (8.5) 396 (14.1) 731 (4.1) 51 (2.6) 22,287 (7.9)  
 Gender       1.5 (0.17)
  Male 143,479 (59.8) 1,377 (49.1) 12,189 (68.1) 999 (52.5) 170,237 (59.8)  
 Restraint Status       27.6 (<0.0001)
  Yes 237,425 (98.3) 2,709 (97.2) 14,334 (79.3) 1,321 (73.6) 20,998 (97.7)  
 Alcohol involved       26.8 (<0.0001)
  Yes 3,461 (1.5) 115 (4.5) 706 (4.3) 393 (23.1) 5,795 (2.2)  
Vehicle Characteristics
 Vehicle model year       5.9 (0.025)
  <1994 9,258 (2.6) 60 (1.5) 555 (2.0) 64 (2.6) 9,937 (2.5)  
  1994–1997 21,177 (5.9) 166 (4.2) 1,754 (6.3) 110 (4.4) 23,207 (5.9)  
  1998–2004 138,809 (38.6) 2,245 (57.2) 14,872 (53.3) 1,245 (50.0) 157,171 (39.9)  
  2005–2008 93,075 (25.9) 856 (21.8) 5,122 (18.3) 483 (19.4) 99,536 (25.3)  
  2009–2014 97,506 (27.1) 596 (15.2) 5,616 (20.1) 590 (23.7) 104,308 (26.5)  
 Vehicle type       4.8 (0.073)
  Car 207,252 (57.4) 2,690 (68.5) 17,008 (60.9) 1,614 (64.8) 228,564 (57.8)  
  SUV 71,244 (19.7) 855 (21.8) 5,478 (19.6) 439 (17.6) 78,016 (19.7)  
  Van 37,633 (10.4) 240 (6.1) 3,207 (11.5) 149 (6.0) 41,228 (10.4)  
  Pickup 45,041 (12.5) 140 (3.6) 2,225 (8.0) 290 (11.6) 47,686 (12.1)  
 Crash Rating
  Side crash rating       8.9 (0.018)
   Unrated 288,448 (79.9) 3,200 (81.6) 22,465 (80.5) 1,662 (66.7) 315,775 (79.8)  
   Poor 20,289 (5.6) 230 (5.9) 2,530 (9.1) 89 (3.6) 23137 (5.9)  
   Marginal 6,450 (1.8) 54 (1.4) 729 (2.6) 160 (6.4) 7,393 (1.9)  
   Acceptable 6,717 (1.9) 210 (5.4) 411 (1.5) 209 (8.4) 7,548 (1.9)  
   Good 39,266 (10.9) 230 (5.9) 1,784 (6.4) 372 (14.9) 41,651 (10.5)  
Crash Characteristics
 Time of crash       0.02 (0.88)
  Day 216,322 (60.0) 2,592 (66.1) 12,681 (45.4) 1,291 (51.8) 232,886 (59.0)  
  Night 144,285 (40.0) 1,332 (33.9) 15,237 (54.6) 1,201 (48.2) 162,054 (41.0)  
 Week of Day       0.04 (0.78)
  Weekday 228,083 (63.2) 2,443 (62.3) 17,709 (63.4) 1,526 (61.3) 249,761 (63.2)  
  Weekend 133,087 (36.8) 1,481 (37.7) 10,209 (36.6) 966 (38.7) 145,743 (36.9)  
 Crash Side       4.2 (0.010)
  Same side 169,036 (46.9) 2,272 (58.2) 11,455 (42.1) 1,374 (58.4) 184,137(46.8)  
  Middle seated 25,099 (7.0) 118 (3.0) 3,515 (12.9) 330 (14.0) 29,062 (7.4)  
  Opposite side 166,030 (46.1) 1,512 (38.7) 12,209 (44.9) 650 (27.6) 180,402 (45.8)  
 Crash Type       23.9 (<0.0001)
  Single vehicle 44,837 (13.0) 726 (18.6) 5,063 (18.9) 1,017 (40.8) 51,643 (13.6)  
  Angle 156,095 (45.2) 2,630 (67.4) 13,297 (49.5) 962 (38.6) 172,984 (45.6)  
  Sideswipe-same direction 129,184 (37.4) 498 (12.8) 6,815 (25.4) 485 (19.4) 136,982 (36.1)  
  Sideswipe-opposite direction 15,605 (4.5) 47 (1.2) 1,681 (6.3) 28 (1.1) 17,361 (4.6)  
 Striking vehicle       17.7 (<0.0001)
  No striking vehicle 37,264 (10.7) 579 (15.9) 4,674 (17.7) 998 (40.3) 43,515 (11.4)  
  Multiple vehicle 21,133 (6.1) 252 (6.9) 708 (2.7) 247 (10.0) 22,341 (5.9)  
  Smaller/similar 201,727 (57.8) 1,832 (50.3) 13,552 (51.3) 569 (23.0) 217,680 (57.1)  
  Larger 88,706 (25.4) 982 (26.9) 7,494 (28.4) 661 (26.7) 97,843 (25.7)  
 Rollover       52.6 (<0.0001)
  Yes 6,315 (1.7) 369 (9.4) 1,994 (7.1) 640 (25.7) 9,318 (2.4)  
 Ejection       269.7 (<0.0001)
  Yes 52 (0.0) 84 (2.3) 405 (1.6) 596 (24.4) 1,137 (0.3)  
 Speed related       27.1 (<0.0001)
  Yes 15,780 (4.4) 345 (8.9) 1,358 (5.0) 759 (30.8) 18,242 (4.7)  
  1. aChi-square and p value expressed are for the relationship between the left-side variable and severe/fatal injury
  2. bPercentage for Total are row percentages; all the other are column percentages
  3. CTotal in each stratum are different due to missing values