Table 2. Demographic data and pain characteristics of short vs. long pain duration groups.

		Age (Y)	Sex (M: F)	Pain duration (Months)	Ch. Pain severity	Pain severity (VAS)	Sensory (MPQ)	Affective (MPQ)	Pain-DETECT	BDI
					0–10	0–10	0–42	0–14	0–38	0–63
SPD (n = 20)	Mean	65.2		33.9	6.3	3.9	13.8	1.9	10.6	6.7
	SD	8.2			2.4	4.2	7.7		6.8
	Median			33				1		4.5
	Range	45.4–83		12–60	2–10	0–9	0–31	0–11	0–23	0–22
	Ratio		7:13
LPD (n = 20)	Mean	66.9		165	4.4	2.5	11.2	0.9	12.2	8.1
	SD	8.8			4.5	2.4	8.1		5.6
	Median			120				0		7.5
	Range	48.3–81		72–456	1–8	0–7	0–29	0–7	1–25	0–19
	Ratio		12:8
P-value		0.5§	0.2Φ	< 0.001¶	0.01§	0.07§	0.3§	0.04¶	0.4§	0.2¶

SPD = Short Pain Duration, LPD = Long Pain Duration, VAS = Visual Analogue Scale, MPQ = McGill Pain Questionnaire, BDI = Beck Depression Inventory.

§ = Independent t-test.

¶ = Independent samples Mann-Whitney U Test.

Φ = Fisher’s Exact Test.