BMC Musculoskeletal Disorders

Table 2 Time progression of the variables

From: Prediction and trend of tactile acuity, pain and disability in acute LBP: a six-month prospective cohort study

	T1		T2		T3
	Subjects	Frequency	Subjects	Frequency	Subjects	Frequency
Vertical TPDT
≥ 6 cm	21	20%	15	15%	15	15%
< 6 cm	82	80%	67	65%	59	57%
No data	0	0%	21	20%	29	28%
Horizontal TPDT
≥ 6 cm	59	57%	37	36%	31	30%
< 6 cm	44	43%	45	44%	43	42%
No data	0	0%	21	20%	29	28%
ODI
Minimal disability	5	5%	22	21%	29	28%
Moderate disability	64	62%	52	50%	40	39%
Severe disability	24	23%	9	9%	6	6%
Crippling disability	5	5%	2	2%	1	1%
No data	5	5%	18	17%	27	26%
NRS
NRS 0	-	-	46	45%	43	42%
NRS 1–3	66	64%	27	26%	23	22%
NRS ≥4	35	34%	9	9%	9	9%
No data	2	2%	21	20%	28	27%

T1 Time point 1 (< 4 weeks), T2 Time point 2 (3 months), T3 Time point 3 (6 months), TPDT Two-point discrimination threshold measured with a plastic calliper ruler in vertical and horizontal direction from 1–10 cm, ODI Oswestry Disability Index score ≤ 20% = minimal disability; score 21- 40% = moderate disability; score ≤ 41- 60% = severe disability; score 61–80% = crippling disability; score > 81% bed-bound [28], NRS Numeric Rating Scale (NRS) 0–10

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ISSN: 1471-2474

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