Table 6 Comparison of patients with fluctuating and episodic LBP trajectory patterns
From: How can latent trajectories of back pain be translated into defined subgroups?
Fluctuating | Episodic | |
|---|---|---|
Mean distress at baseline (SD) | ||
Severe* | 17.6 (8.8) | 9.4 (7.8) |
Moderate* | 13.0 (9.3) | 7.7 (6.9) |
Mild* | 8.8 (7.8) | 6.1 (5.6) |
Minor (NS) | 8.6 (7.3) | 7.8 (.8) |
Mean leg pain intensity at baseline (SD) | ||
Severe* | 5.9 (3.1) | 2.7 (3.0) |
Moderate* | 3.5 (3.0) | 2.5 (2.8) |
Mild* | 3.3 (3.0) | 1.9 (2.4) |
Minor (NS) | 2.1 (2.3) | 2.9 (3.2) |
Mean activity limitation at 3-month follow-up (SD) | ||
Severe* | 61.6 (19.3) | 19.8 (21.8) |
Moderate* | 49.5 (24.1) | 10.3 (13.8) |
Mild* | 29.6 (21.5) | 6.1 (8.2) |
Minor (NS) | 19.9 (22.7) | 7.6 (15.2) |
Expectations of future LBP at 12-month follow-up (%) | ||
Severe* | n = 27 | n = 235 |
No future LBP | 0 | 7% |
Episodic mild | 0 | 53% |
Ongoing mild | 7% | 9% |
Episodic – varying intensity | 11% | 24% |
Ongoing – varying intensity | 37% | 2% |
Episodic severe | 19% | 5% |
Ongoing severe | 26% | 0 |
Moderate* | n = 72 | n = 146 |
No future LBP | 1% | 12% |
Episodic mild | 15% | 67% |
Ongoing mild | 31% | 5% |
Episodic – varying intensity | 22% | 14% |
Ongoing – varying intensity | 22% | 2% |
Episodic severe | 8% | 0 |
Ongoing severe | 0 | 0 |
Mild* | n = 80 | n = 134 |
No future LBP | 3% | 18% |
Episodic mild | 25% | 62% |
Ongoing mild | 29% | 8% |
Episodic – varying intensity | 33% | 11% |
Ongoing – varying intensity | 6% | 0 |
Episodic severe | 3% | 1% |
Ongoing severe | 3% | 0 |
Minor (NS) | n = 20 | n = 13 |
No future LBP | 5% | 8% |
Episodic mild | 50% | 85% |
Ongoing mild | 20% | 0 |
Episodic – varying intensity | 15% | 8% |
Ongoing – varying intensity | 5% | 0 |
Episodic severe | 5% | 0 |
Ongoing severe | 0 | 0 |