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. 2011 Jul 25;12:174. doi: 10.1186/1471-2474-12-174

Table 1.

Characteristics of Patients

Variable All patients
(n = 157)
Orthopaedic patients
(n = 70)
medical-psychosomatic patients
(n = 87)
Patients retested
(n = 47)
Female sex 51% 41% 55% 62%

Age (years) * 52.4 (15.3)
51 (43-62)
57.8 (17.4)
59 (44-74)
48.0 (11.7)
49 (42-55)
47.1 (12.1)
48 (42-54)

Baseline pain (NAS score) * 5.0 (2.3)
5 (3-7)
3.6 (1.4)
4 (2-4)
6.1 (2.4)
6 (4-8)
6.1 (2.5)
7 (4-8)

Acute pain,
< 6 months
24% 46% 7% 7%

Chronic pain
> 6 months
76% 54% 93% 93%

Mean duration of pain (months) * 62.1 (98.7)
24 (6-60)
18.1 (27.1)
6 (1-24)
97.4 (119.4)
48 (19-96)
77.6 (94.5)
42 (18-87)

Monolocular pain 43% 70% 21% 18%

Multilocular pain 57% 30% 78% 82%

Non-steroidal anti-inflammatory drugs 64% 87% 45% 47%

Opioid drugs 27% 13% 38% 29%

Antidepressant drugs 48% 7% 81% 84%

HADS-D Depression Score* 7.7 (5.1)
6 (3-11)
4.5 (2.8)
4 (2-6.8)
10.4 (5.1)
10 (5.3-14)
10.7 (5.2)
10 (4.8-14.3)

HADS-D = Depression subscale of the Hospital Anxiety and Depression Scale

*) values are given as mean (SD) and median (interquartile range)