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Table 2 Regression results

From: Experimental determination of three-dimensional cervical joint mobility in the avian neck

Joint Rotation Variable Coefficient St. Err. T value p-value Adj. r2 p-value
Cranial axial
rotation
excursion
PC1
PC2
PC3
−5.8268
7.971
−6.5223
0.4825
0.7522
1.4763
−12.076
10.597
−4.418
<.001
<.001
<.001
0.9093 <.001
lateroflexion
excursion
PC1
PC2
−1.4410
6.112
0.6853
1.1422
−2.103
5.351
0.0449
<.001
0.5041 <.001
dorsoventral
excursion
PC2 −1.6532 0.8461 −1.954 0.0608 0.0886 0.06078
mean
dorsoventral
flexion
PC1
PC2
PC3
6.6402
−5.8441
6.4364
0.6137
0.9567
1.8777
10.820
−6.108
3.428
<.001
<.001
0.0020
0.8627 <.001
Caudal axial
rotation
excursion
PC1
PC2
PC3
−4.1545
7.6497
4.3237
0.8023
1.1911
2.2359
−5.178
6.422
1.934
<.001
<.001
0.0641
0.7681 <.001
lateroflexion
excursion
PC2
PC3
4.30274
3.955
1.3482
2.422
3.192
1.633
0.0037
0.1141
0.2957 0.003358
dorsoventral
excursion
PC3 −2.854 1.585 −1.801 0.0825 0.0718 0.08246
mean
dorsoventral
flexion
PC1
PC2
PC3
4.9342
−7.6029
2.2219
0.5378
0.7984
1.4988
9.174
−9.522
1.482
<.001
<.001
.15
0.9025 <.001
  1. Results of regressing range of motion on principal component scores for vertebrae. Each regression was run twice for the joint cranial to and then caudal to the vertebra. Rotation excursions are the differences between maximum and minimum angular values, while mean dorsoventral flexion is the average/midpoint between the maximum and minimum value. Only significant terms are shown. An adjusted R-squared and p-value is given for each model, and for each term the value of the coefficient, the standard error, and the t value and its p-value are given.