Table 1.

Demographic characteristics of the patients included in the content validity study.

	N = 11
Gender (male) (%)	2 (18.2)
Age	46.0 (25.0–55.0)
Median (IQR)
Duration of neck pain in weeks
Median (IQR)	45.0 (16.0–100.0)
Acute/subacute	2 (18.2)
Chronic	9 (81.8)
Previous history with neck pain (yes) (%)	9 (81.8)
Ability to work despite neck pain:
No, completely unable	0 (0.0)
No, but I do not work at all	1 (9.1)
Yes, it’s possible to perform my ordinary work activities	7 (63.6)
Yes, but I have to adjust my work	3 (27.3)
Initial pain (NRS) Median (IQR)	7.0 (2.0–7.0)
PSFS total score Median (IQR)	5.3 (4.3–7.0)
PSFS score per item Median (IQR)	1. 6.0 (4.0–8.0) 2. 5.0 (4.0–7.0) 3. 5.3 (4.3–7.0)
PSFS 2.0 total score Median (IQR)	4.3 (3.0–6.3)
PSFS 2.0 score per item Median (IQR)	1. 4.0 (2.0–6.0) 2. 4.0 (3.0–5.0) 3. 4.0 (2.0–7.0)

Abbreviations: NRS; Numeric Rating Scale, IQR; Inter quartile range.