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Table 6 Injury Severity by Seatbelt Compliance

From: Buckling up in Singapore: residency and other risk factors for seatbelt non-compliance – a cross-sectional study based on trauma registry data

  Injury Severity Score (ISS) Compliant [Number (%)/Mean (SD)] Non-Compliant [Number (%)/Mean (SD)] P
Total Study Population ISS <9 1205 (88.54) 156 (11.46) <0.0001
  ISS 9–15 152 (80) 38 (20)  
  ISS > 15 2402 (79.4) 623 (20.6)  
Demographics     
 Age     
  ISS <9 40.2 (SD 13.3) 36.1 (SD 14.3) 0.0003
  ISS 9–15 45.9 (SD 15.8) 51.9 (SD 17.3) 0.04
  ISS > 15 41.4 (SD 13.8) 38.0 (SD 14.6) <0.0001
 Male     <0.0001
  ISS < 9 773 (92.35) 64 (7.65)  
  ISS 9–15 115 (85.82) 19 (14.18)  
  ISS > 15 1675 (83.83) 323 (16.17)  
Country of Residence     
 Singapore     <0.0001
  ISS < 9 992 (89.53) 116 (10.47)  
  ISS 9–15 130 (83.87) 25 (16.13)  
  ISS > 15 2157 (80.94) 508 (19.06)  
 Malaysia     0.15
  ISS < 9 86 (90.53) 9 (9.47)  
  ISS 9–15 5 (100) 0 (0)  
  ISS > 15 17 (77.27) 5 (22.73)  
 India     0.52
  ISS < 9 38 (88.37) 5 (11.63)  
  ISS 9–15 2 (66.67) 1 (33.33)  
  ISS > 15 4 (80) 1 (20)  
 China     0.60
  ISS < 9 28 (73.68) 10 (26.32)  
  ISS 9–15 2 (50) 2 (50)  
  ISS > 15 2 (66.67) 1 (33.33)  
 Other Nationalities     0.05
  ISS < 9 61 (79.22) 16 (20.78)  
  ISS 9–15 13 (56.52) 10 (43.48)  
  ISS > 15 222 (67.27) 108 (32.73)  
Vehicle Type     
 Bus (capacity of 20 or more passengers)     0.20
  ISS < 9 4 (57.14) 3 (42.86)  
  ISS 9–15 0 (0) 3 (100)  
  ISS > 15 4 (30.77) 9 (69.23)  
 Heavy Transport Vehicle     0.16
  ISS < 9 139 (92.67) 11 (7.33)  
  ISS 9–15 18 (85.71) 3 (14.29)  
  ISS > 15 95 (85.59) 16 (14.41)  
 Minibus (less than 20 passengers)     0.06
  ISS < 9 4 (100) 0 (0)  
  ISS 9–15 0 (0) 1 (100)  
  ISS > 15 15 (83.33) 3 (16.67)  
 Private Car     <0.0001
  ISS < 9 755 (91.18) 73 (8.82)  
  ISS 9–15 93 (84.55) 17 (15.45)  
  ISS > 15 1465 (82.86) 303 (17.14)  
 Taxi     0.36
  ISS < 9 205 (77.07) 61 (22.93)  
  ISS 9–15 25 (69.44) 11 (30.56)  
  ISS > 15 429 (72.96) 159 (27.04)  
 Van or Pickup     0.005
  ISS < 9 73 (96.05) 3 (3.95)  
  ISS 9–15 16 (94.12) 1 (5.88)  
  ISS > 15 126 (81.29) 29 (18.71)  
Seat Position     
 Driver     <0.0001
  ISS < 9 820 (97.16) 24 (2.84)  
  ISS 9–15 98 (89.91) 11 (10.09)  
  ISS > 15 1690 (88.95) 210 (11.05)  
 Front Passenger     0.041
  ISS < 9 261 (91.26) 25 (8.74)  
  ISS 9–15 41 (89.13) 5 (10.87)  
  ISS > 15 429 (85.12) 75 (14.88)  
 Rear Passenger     0.005
  ISS < 9 124 (53.68) 107 (46.32)  
  ISS 9–15 13 (38.24) 21 (61.76)  
  ISS > 15 220 (41.28) 313 (58.72)  
Time of Arrival     
 0700–0959 h     <0.0001
  ISS < 9 126 (92.65) 10 (7.35)  
  ISS 9–15 15 (75) 5 (25)  
  ISS > 15 173 (69.2) 77 (30.8)  
 All other times     <0.0001
  (1000–1659 h ISS < 9 1079 (88.08) 146 (11.92)  
  1700–1959 h ISS 9–15 137 (80.59) 33 (19.41)  
  2000–0659 h) ISS > 15 2229 (80.32) 546 (19.68)