Back ache

Yes

3.6 (1.9)

7.6 (1.9)

7.3 (2.0)

5.8 (1.6)

4.9 (2.1)

3.4 (2.1)

5.9 (2.4)

3.6 (2.6)

5.5 (1.9)

6.2 (2.1)

2.3 (1.4)

No

3.6 (2.2)

7.5 (1.8)

7.4 (1.9)

5.7 (1.6)

5.1 (2.2)

3.0 (2.0)^‡

5.6 (2.4)*

3.4 (2.6)

5.4 (1.9)

6.0 (2.2)

2.3 (1.6)

Neck ache

Yes

3.8 (2.1)

7. 6 (1.9)

7.2 (1.9)

5.9 (1.5)

5.0 2.0)

3.4 (2.0)

5.8 (2.2)

3.5 (2.6)

5.6 (1.9)

6.1 (2.2)

2.3 (1.4)

No

3.6 (2.1)

7.5 (1.9)

7.4 (2.0)

5.7 (1.7)

5.0 (2.2)

3.0 (2.0)*

5.6 (2.4)

3.5 (2.7)

5.4 (1.9)

6.1 (2.2)

2.3 (1.5)

Headache

Yes

3.6 (2.1)

7.7 (1.9)

7.5 (2.0)

5.8 (1.6)

5.1 (2.1)

3.4 (2.1)

5.9 (2.4)

3.5 (2.6)

5.7 (1.9)

6.1 (2.2)

2.3 (1.5)

No

3.6 (2.1)

7.4 (1.8)

7.2 (1.9)

5.6 (1.7)

5.0 (2.1)

2.8 (2.0)^†

5.5 (2.4)^‡

3.5 (2.7)

5.2 (1.8)^‡

6.1 (2.2)

2.3 (1.5)