Table 4 Distribution of patients in the defined subgroups
From: How can latent trajectories of back pain be translated into defined subgroups?
Defined Trajectory Subgroup | Prevalence (n) of patients in the chiropractic sample (n = 814) | Prevalence (n) of patients in the general practice sample (n = 263) | Posterior probability of belonging to each of eight LCA derived patternsa | Number of days with pain per week, in weeks with any LBP, mean (SD) | Pain intensity in weeks with any LBP, mean (SD) | Total number of days with LBP during 43 weeks (301 days), mean (SD) |
|---|---|---|---|---|---|---|
Severe ongoing | 0.1% (1) | 1% (2) | Severe ongoing: pp. ≈ 1 | 6.9 (.16) | 8.1 (1.6) | 250 (88) |
Moderate ongoing | 0.1% (1) | 0 | Moderate ongoing daily: pp. ≈ 1 | 7 (0) | 4.2 (0) | 301 (0) |
Mild ongoing | 0.1% (1) | 0.4% (1) | Moderate ongoing not daily: pp. = .5 Moderate ongoing daily: pp. = .5 | 6.1 (.31) | 3.0 (1.1) | 200 (76) |
Minor ongoing/recovered | 16% (133) | 8% (22) | Recovery: pp. = .97/Late recovery: pp. = .18 | 2.2 (2.1) | 1.3 (.4) | 2 (22) |
Severe fluctuating | 2% (15) | 11% (28) | Severe ongoing: pp. = .77 Moderate ongoing not daily: pp. = .19 | 6.1 (1.3) | 7.3 (.9) | 239 (61) |
Moderate fluctuating | 6% (47) | 15% (40) | Moderate ongoing not daily: pp. = .57 Moderate ongoing daily: pp. = .36 | 5.2 (1.5) | 5.1 (.6) | 206 (69) |
Mild fluctuating | 9% (75) | 14% (38) | Moderate ongoing not daily: pp. = .62 Moderate ongoing daily: pp. = .24 Improvement w/ relapse: pp. = .13 | 4.0 (1.7) | 3.2 (.7) | 155 (81) |
Minor fluctuating | 2% (19) | 1% (3) | Moderate ongoing not daily: pp. = .41 Improved w/ relapse: pp. = .31 Moderate ongoing daily: pp. = .23 | 3.9 (2.1) | 1.8 (.5) | 143 (90) |
Severe episodic | 24% (196) | 28% (74) | Mild episodic: pp. = .31 Improvement w/ relapse: pp. = .25 Slow improvement: pp. = 0.23 | 3.3 (1.3) | 4.2 (1.2) | 51 (44) |
Moderate episodic | 16% (127) | 14% (36) | Mild episodic: pp. = .42 Slow improvement: pp. = .19 Late recovery: pp. = .15 Improvement w/ relapse: pp. = .11 | 2.6 (1.2) | 3.0 (.7) | 29 (28) |
Mild episodic | 13% (104) | 3% (7) | Mild episodic: pp. = .40 Late recovery: pp. = .26/Recovery: pp. = .14 Slow improvement: pp. = .12 | 1.9 (1.1) | 1.9 (.5) | 19 (26) |
Minor episodic | 0.6% (5) | 1% (3) | Late recovery: pp. = .50/Recovery: pp. = .25 Improvement w/ relapse: pp. = .13Mild episodic: pp. = .12 | 1.2 (.4) | 1 (0) | 6 (7) |
Severe single episode | 1.8% (15) | 1% (3) | Recovery: pp. = .87 | 4.3 (1.9) | 6.4 (1.0) | 6 (4) |
Moderate single episode | 2% (20) | 1% (3) | Recovery: pp. = .83 /Late recovery: pp. = .13 | 2.4 (1.2) | 4.4 (.6) | 3 (2) |
Mild single episode | 6% (46) | 1% (3) | Recovery: pp. = .55/Late recovery: pp. = .45 | 1.8 (1.0) | 2.5 (.5) | 2 (2) |
Minor single episode | 1% (9) | 0 | Recovery: pp. = .56/Late recovery: pp. = .44 | 1.1 (.2) | 1 (0) | 1 (1) |