Table 3 Mean (SD) of primary outcome variables in the different pain site groups

Head (n = 76)

4.24 (1.84)

3.55 (2.22)

4.53 (1.88)

4.43 (1.65)

5.36 (2.42)

3.37 (1.37)

4.77 (2.43)

Neck and shoulder (n = 36)

3.73 (1.73)

3.11 (1.99)

4.29 (2.04)

3.91 (2.23)

4.52 (1.84)

3.25 (1.14)

4.27 (2.25)

Back (n = 34)

3.96 (1.54)

3.58 (2.05)

4.06 (2.00)

3.94 (2.02)

4.74 (2.0)

3.35 (1.25)

4.38 (2.56)

Extremities (n = 61)

3.29 (1.64)

2.82 (1.85)

3.79 (1.79)

3.50 (1.90)

4.33 (1.96)

3.21 (1.34)

3.92 (2.27)