Parameters for Norton (2014) LCGM used to simulate non-linear HAQ trajectories for 4 latent classes.
haq.lcgm
List containing coefficients (point estimates and parameter names) and variance-covariance matrix.
Norton, Sam, et al. "Health Assessment Questionnaire disability progression in early rheumatoid arthritis: systematic review and analysis of two inception cohorts." Seminars in arthritis and rheumatism. Vol. 44. No. 2. WB Saunders, 2014.