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. 2020 Jun 23;8:e9345. doi: 10.7717/peerj.9345

Table 1. Demographics and participant characteristics for both the persistent neck pain patients and pain-free controls.

Persistent neck pain (n = 30) Pain-free controls (n = 30) Mean diff. (95% CI)
Mean SD Range Mean SD Range
Age (in years) 50.90 15.87 18–72 49.90 14.55 23–73 −1.00 [−0.34 to −1.66]
PANAS–positive affect
PANAS–negative affect
31.60
12.50
8.06
3.18
19–48
10–21
30.73
12.53
7.68
3.57
14–47
10–23
−0.87 [1.94 to −3.67]
0.03 [1.26 to −1.20]
STAI-T–total 38.87 10.65 21–58 36.60 10.89 20–63 −2.27 [1.68 to −6.22]
PCS–total
PCS–rumination
PCS–magnification*
PCS–helplessness**
13.93
4.3
3.07
6.57
10.04
3.54
3.04
4.15
2–36
0–14
0–10
1–15
7.97
3.17
1.63
3.17
7.03
3.13
1.92
2.74
0–32
0–12
0–8
0–12
−5.97 [−2.81 to −9.12]
−1.13 [0.12 to −2.39]
−1.43 [−0.48 to −2.38]
−3.40 [−2.16 to −4.64]
PHQ-9*–total 7.47 5.64 0–18 3.9 4.49 0–20 −5.97 [−2.81 to −9.12]
TSK-11–total**
TSK-11–somatic focus
TSK-11–avoidance
24.10
10.77
13.33
5.49
3.03
3.25
12–36
5–17
7–23
18.97
8.63
10.33
5.18
2.86
2.60
11–28
5–14
6–15
−5.13 [−3.24 to −7.03]
−2.13 [−1.04 to −3.23]
−3.00 [−1.98 to −4.02]
NDI–total 30.0% 12.4 12–54%
Current pain (0–10) 4.07 2.21 0–8 0.1 0.31 0–1 −3.97 [−3.38 to −4.55]
Av. pain last 2 weeks (0–10) 4.47 1.18 0–7 0.13 0.43 0–2 −4.33 [−3.84 to −4.83]
Worst pain 2 weeks (0–10) 6.8 2.53 0–10 0.57 1.14 0–7 −6.27 [−5.52 to −7.01]

Notes:

*

p < 0.05.

**

p < 0.01.

PANAS, positive and negative affect schedule; STAI-T, trait version of the state-trait anxiety inventory; PCS, pain pain-catastrophizing scale; PHQ-9, patient health questionnaire; TSK-11, tampa scale for kinesiophobia; NDI, neck disability index; Range, the minimum and maximum value for the given variable.