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Table 2 Adjusted marginal means for baseline pressure pain threshold and temporal summation by low back pain trajectory

From: Pressure pain threshold and temporal summation in adults with episodic and persistent low back pain trajectories: a secondary analysis at baseline and after lumbar manipulation or sham

 

Adjusted marginal means (95% CI)

Between-group difference p value

Non-LBP

Episodic LBP

Persistent LBP

Non-LBP vs. episodic LBP

Non-LBP vs. persistent LBP

Calf PPT (kg/cm2)

4.61 (3.55–5.68)

4.44 (3.48–5.40)

4.23 (3.65–4.82)

0.808

0.532

Lumbar PPT (kg/cm2)

6.41 (4.75–8.07)

5.92 (4.48–7.36)

4.95 (4.17–5.72)

0.660

0.111

Shoulder PPT (kg/cm2)

3.59 (2.78–4.40)

3.17 (2.49–3.85)

2.88 (2.48–3.27)

0.429

0.115

Hand TS (0–100 NRS)

7.53 (2.43–12.64)

9.40 (4.74–14.06)

8.42 (5.47–11.38)

0.599

0.768

Feet TS (0–100 NRS)

14.49 (8.43–20.54)

11.74 (6.17–17.30)

13.42 (9.90–16.95)

0.513

0.767

  1. Abbreviations: LBP low back pain, PPT pressure pain threshold, TS temporal summation, NRS numerical rating scale