Defining pain and interference recovery trajectories after acute non-catastrophic musculoskeletal trauma through growth mixture modeling

Table 2 Fit indices for maximum likelihood-based latent growth curve models of pain severity and interference dimensions when controlling for effect of body region injured

Model	AIC	BIC	Entropy	LMR-LRT adj (p)
Pain Severity
2-class	2855.57	2909.43	0.86	103.65 (< 0.01)
3-class	2841.72	2898.95	0.84	42.40 (0.03)
4-class	2782.97	2853.66	0.84	55.72 (0.64)
Percent Functional Interference
2-class	2805.41	2862.72	0.73	51.55 (< 0.01)
3-class	2752.38	2826.54	0.74	60.77 (< 0.01)
4-class¹	2734.90	2819.17	0.76	30.25 (0.27)

1: The 4-class model for % Interference would only converge when variance in both slope and quadratic growth function were constrained to zero

ISSN: 1471-2474