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Table 4 Mean and SD values, and sensitivity and specificity obtained from linear discriminant analyses

From: Kinematics of fast cervical rotations in persons with chronic neck pain: a cross-sectional and reliability study

Variables Group Values Sensitivity Specificity
Peak Speed (degrees/s) CON 348 ± 92** 74.6% 73.5%
  NS 226 ± 88   
ROM (degrees) CON 61.5 ± 8.3** 64.4% 71.4%
  NS 52.7 ± 9.2   
NPA CON 2.33 ± 0.20 59.3% 36.7%
  NS 2.34 ± 0.19   
AD-ratio CON 0.81 ± 0.24 61.0% 49.0%
  NS 0.74 ± 0.22   
SID (%) CON 13.7 ± 4.7** 58.5% 69.4%
  NS 18.1 ± 6.5   
CM (a.u.) CON 14.5 ± 4.5** 53.4% 69.4%
  NS 17.6 ± 5.9   
  1. Group (NS-CON) was used as grouping variable in the linear discriminant analyses, separate for each kinematic variable. NS: non-specific neck pain group, sample-1 and -2 pooled together (n = 118); CON: healthy control group, sample-1 and -2 pooled together (n = 49); ROM: Range of movement; NPA: Normalized peak speed amplitude; AD-ratio: Acceleration-deceleration ratio; SID: Speed index of deviation; CM: Conjunct movements; a.u: Arbitrary units. ** p < 0.01 (t-tests).