The Relationship between Mechanical Hyperalgesia Assessed by Manual Tender Point Examination and Disease Severity in Patients with Chronic Widespread Pain: A Cross-Sectional Study
Table 2
Demographic data and key variables classified according to the ICF model.
Mean
SD
Range
Demographics
Age (years)
45.5
9.66
20.4–71.5
271
Symptom duration (months)
122
102
6–540
227
Body mass index (BMI)
26.9
5.5
16.9–45.7
270
Never
Sometimes
Daily
Pain medication
Weak analgesics
3%
63%
34%
237
NSAID’s
39%
43%
18%
230
Opioids
56%
23%
21%
231
Yes
No
Antidepressants
31%
69%
237
Pain-related work interference
Changes or permanent disability from usual working activity due to pain
82%
18%
235
Applied for permanent disability pension at some stage
25%
75%
231
Currently holding a position or enrolled in education
21%
239
Currently on long-term sick leave
25%
239
Currently receiving social benefits or socials services of some sort
34%
239
Mean
SD
Range
Body
Muscle strength UE (PTQ extension)
84.94
36.88
7–199
249
Muscle strength UE (PTQ flexion)
40.23
18.41
5–85
249
Grip strength, max.
174.96
82.24
8–408
258
Vitality (SF-36)
21.88
17.26
0–75
268
Fatigue (FIQ)
8.01
1.95
1.3–10
267
Rest (FIQ)
7.57
2.33
0–10
266
Well-being (SF-36)
55.62
20.61
0–100
268
Well-being (FIQ)
7.32
2.66
0–10
258
Anxiety (FIQ)
4.46
3.43
0–10
267
Anxiety (GAD-10)
19.17
9.78
1–50
268
Depression (FIQ)
3.81
3.42
0–10
268
Depression (MDI)
21.60
10.68
3–50
268
Bodily pain (SF-36)
24.07
15.03
0–84
268
Pain intensity (FIQ)
7.07
1.95
0–10
268
Muscle stiffness (FIQ)
6.25
2.75
0–10
265
Tiredness mobility (Mob-T)
1.68
1.61
0–6
257
Pain detection threshold (PDT)
12.16
7.52
0.3–46.2
229
Pain tolerance threshold (PTT)
31.65
14.73
9.2–86.7
229
Activity and participation
ADL ability motor (AMPS)
1.07
0.50
0.4–2.82
257
ADL ability process (AMPS)
1.09
0.35
0.12–2.18
257
Walking speed (6-MW)
449.67
114.37
94.6–712.1
259
Activity limitations (FIQ)
5.24
2.22
0–9
267
Physical functioning (SF-36)
42.88
20.01
0–95
268
Role physical (SF 36)
9.71
21.03
0–100
267
Role emotional (SF-36)
45.12
43.30
0–100
263
Social functioning (SF-36)
48.04
26.47
0–100
268
Days of sick leave pr. week (FIQ)
1.12
1.68
0–6
70
Work ability (FIQ)
6.62
2.50
0–10
72
Personal
Catastrophizing (CSQ)
15.91
8.35
0–36
266
Perceived control over pain (CSQ)
2.40
1.38
0–6
266
Ability to decrease pain (CSQ)
2.28
1.22
0–6
264
Global measures
FIQ total
61.32
18.53
2.9–97.4
268
SF-36 PCS
26.95
6.68
8.8–50.7
268
SF-36 MCS
40.68
11.96
14.9–66.6
268
General health (SF-36)
31.60
18.15
0–97
267
GAD-10: generalized anxiety disorder; MDI: major depression inventory; SF-36: short-form-36 health survey; FIQ: fibromyalgia impact questionnaire; SF-36 PCS: SF-36 physical composite score; PTQ: peak torque; SF-36 MCS: SF-36 mental composite score; CSQ: coping strategy questionnaire; AMPS: assessment of motor and process skills; 6-MW: 6-minute walk; Mob-T: mobility tiredness.
