Fibromyalgia and neuropathic pain - differences and similarities. A comparison of 3057 patients with diabetic painful neuropathy and fibromyalgia

Table 1 Demographic and clinical characteristics

Aetiology	DPN	Fibromyalgia	s
Patients (n,%)	1623 (100.0%)	1434 (100.0%)
Male (n,%)	824 (50.8%)	153 (10.7%)	< 0.001
Female (n,%)	799 (49.2%)	1281 (89.3%)
Age (years) *	61.9 ± 13.0	51.9 ± 10.8	< 0.001
P25/P75	54/71	46/59
Height (cm) *
males	176.8 ± 7.5	176.5 ± 17.2	n.s.
females	164.2 ± 7.0	164.3 ± 8.0	n.s.
Weight (kg) *
males	90.8 ± 17.5	87.4 ± 20.9	n.s.
females	79.2 ± 16.2	74.5 ± 16.9	< 0.001
BMI (kg/m²) *
males	29.0 ± 5.1	27.9 ± 5.8	0.023
females	29.5 ± 6.2	27.6 ± 6.0	< 0.001
PHQ-9 score, depression
None (0-4)	27.9%	7.3%	< 0.001
Mild (5-9)	34.7%	27.0%	< 0.001
Moderate/moderately severe (10-19)	31.6%	51.6%	< 0.001
Severe (20-27)	5.8%	14.1%	< 0.001
Panic/anxiety disorder present	8.6%	17.9%	< 0.001
MOS sleep scale
Sleep disturbances [0;100] *	46.7 ± 24.6	53.4 ± 24.2	< 0.001
Optimal sleep	33.2%	31.2%	n.s.
Somnolence [0;100] *	46.5 ± 22.4	51.2 ± 21.5	< 0.001
Sleep quantity (hours) *	6.1 ± 1.6	5.9 ± 1.6	< 0.001
Sleep adequacy [0;100] *	49.6 ± 26.6	33.6 ± 25.4	< 0.001

*mean ± standard deviation
BMI: body mass index; P25/P75: 25% and 75% percentiles; DPN: painful diabetic neuropathy; n.s.: not significant.

ISSN: 1471-2377