Table 3 GAM models
Linear regression | Smooth regression | ||||||
|---|---|---|---|---|---|---|---|
Coefficient (SE) | t | ap value | EDF (dfref) | F | ap value | ||
Craniocervical flexion ROM | |||||||
Intercept | − 17.8 (2.6) | − 6.9 | < 0.001 | Age | 5.9(7) | 2 | 0.08 |
Pain duration | 0.014 (0.015) | 1 | 0.3 | Previous month VAS | 4.2(5.1) | 1.4 | 0.2 |
NDI | 0.4 (0.2) | 1.3 | 0.2 | TSK11 | 2.3 (3) | 4.3 | 0.01* |
Craniocervical extension ROM | |||||||
Intercept | 1.07 (1) | 1.1 | 0.3 | TSK11 | 1.24 (1.442) | 0.1 | 0.9 |
Age | 0.1(0.02) | 3.7 | < 0.001* | – | – | – | – |
Previous month VAS | 0.1 (0.2) | 0.9 | 0.4 | – | – | – | – |
Pain duration (months) | − 0.01(0.004) | − 2.4 | 0.02* | – | – | – | – |
NDI | − 0.1 (0.1) | − 0.8 | 0.4 | – | – | – | – |
Peak velocity in craniocervical flexion | |||||||
Intercept | − 31.1 (4.2) | − 7.4 | < 0.001 | Age | 6.1 (7.2) | 2.4 | 0.03* |
Previous month VAS | − 0.5 (1) | − 0.5 | 0.6 | Pain duration | 2 (2.5) | 1.7 | 0.2 |
NDI | 0.6 (0.4) | 1.4 | 0.2 | TSK11 | 8.5(9) | 4.3 | < 0.001* |
Conjunct motion (Lateral flexion) | |||||||
Intercept | 1 (0.4) | 2 | 0.04 | – | – | – | – |
Age | 0.007 (0.01) | 0.8 | 0.4 | – | – | – | – |
Previous month VAS | 0.1 (0.1) | 0.9 | 0.4 | – | – | – | – |
Pain duration (months) | − 0.004 (0.002) | − 2.7 | 0.01* | – | – | – | – |
NDI | − 0.1(0.03) | − 2.2 | 0.03 | ||||
TSK11 | − 0.001 (0.02) | − 0.1 | 1 | ||||