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Table 3 Means, standard deviations and p values

From: The role of cervical collars and verbal instructions in minimising spinal movement during self-extrication following a motor vehicle collision - a biomechanical study using healthy volunteers

  With instruction no collar With instruction with collar No instruction no collar No instruction with collar
MEAN STDEV MEAN STDEV Significance (p) MEAN STDEV Significance (p) MEAN STDEV Significance (p)
Cervical A/P [mm] 22.5 5.1 7.0 2.7 < 0.001 28.3 6.9 < 0.001 7.0 4.2 < 0.001
Cervical Lat [mm] 18.5 6.3 6.3 2.1 < 0.001 17.0 4.6 0.02 4.4 1.9 < 0.001
Cervical roll [O] 33.9 13.0 10.8 4.0 0.2 33.3 17.5 0.36 9.8 8.4 0.15
Cervical pitch [O] 42.7 9.2 13.2 5.3 < 0.001 50.5 13.4 < 0.001 13.0 7.3 < 0.001
Cervical yaw [O] 49.3 20.3 15.0 9.0 < 0.001 54.6 19.3 0.061 9.5 5.0 < 0.001
Lumbar A/P [mm] 153.5 35.2 135.8 35.3 < 0.001 122.4 27.7 < 0.001 122.0 19.1 < 0.001
Lumbar Lat [mm] 101.1 22.5 102.5 35.4 0.54 75.7 28.0 < 0.001 72.5 27.4 < 0.001
Lumbar roll [O] 33.0 6.4 36.3 13.3 0.012 29.0 10.2 0.001 32.3 13.0 0.64
Lumbar pitch [O] 49.1 9.6 43.0 10.9 < 0.001 39.7 9.3 < 0.001 39.1 7.7 < 0.001
Lumbar yaw [O] 46.9 11.5 50.0 17.2 0.46 31.0 7.8 < 0.001 33.7 10.9 < 0.001
  1. Bold italics = extrication values with statistically significant smallest movement