Table 4.

Effect of the medication categories (current treatment) on pain relief in NRS-points, in the subgroups with and without reduction of skin innervation.

	Reduced IENFD		Normal IENFD		P	All
	N	Response (median, range)	N	Response (median, range)		N	Response (median, range)
NSAID	16	2, 0–5	21	2, 0–4	0.33	65	2, 0–5
Metamizole	9	2, 0–3	5	2, 1–3	0.36	33	2, 0–8
Amitriptyline	5	0, 0–2	6	1, 0–4	0.24	20	1, 0–4
SNRI	8	1, 0–2	3	0, 0	0.13	18	1, 0–3

N, the number of patients replies when asked about a given drug; IENFD, normal and reduced intraepidermal nerve density.