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

Table 5 Linear mixed model for ODI with horizontal TPDT as predictor

Parameter	Estimate	SE	95% CI
Intercept, β₀	28.50	4.68	19.41 to 37.59
Horizontal TPDT, β₂	–0.14	0.70	–1.50 to 1.22
T2, β_1,1	–1.89	4.27	–10.20 to 6.43
T3, β_1,2	–5.78	4.44	–14.46 to 2.86
Age, C	0.23	0.08	0.08 to 0.37
Horizontal TPDT x T2, β_3,1	–0.90	0.69	–2.25 to 0.45
Horizontal TPDT x T3, β_3,2	–0.60	0.73	–2.02 to 0.81

TPDT Two-point discrimination threshold, ODI Oswestry Disability Index, T1 Time point 1 (< 4 weeks), T2 Time point 2 (3 months), T3 Time point 3 (6 months), Horizontal TPDT T1xT2 and Horizontal TPDT T1xT3 Interaction effects of TPDT and time on ODI, Estimate Estimated fixed effects, SE Standard Error, 95% CI 95% confidence interval of estimated effect

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