Table 1.
Fit statistics for different number of trajectory groups.
| Trajectory groups | Best BIC | Best AIC | 2ΔBIC | Likelihood | AvePP (per trajectory group) | Percent of patients with posterior probability <70% (per trajectory group) | Percent of sample size (per trajectory group) | Relative entropy |
|---|---|---|---|---|---|---|---|---|
| 1 | −443,433.2 | −443,413.9 | NA | −443,408.9 | 1 | 0 | 100 | NA |
| 2 | −393,822.8 | −393,784.2 | 99,220.9 | −393,774.2 | 0.99/0.98 | 0.3/0.7 | 69/31 | 0.951 |
| 3 | −373,887.9 | −373,830.0 | 39,869.7 | −373,815.0 | 0.97/0.96/0.98 | 0.5/0.6/0.9 | 49/37/14 | 0.924 |
| 4 | −365,471.5 | −365,394.2 | 16,832.8 | −365,374.2 | 0.96/0.94/0.95/0.97 | 0.6/0.7/0.8/0.9 | 37/35/20/8 | 0.916 |
| 5 | −360,994.9 | −360,898.4 | 8953.2 | −360,873.4 | 0.95/0.91/0.91/0.95/0.97 | 0.7/0.7/0.8/0.9/0.9 | 33/30/18/14/6 | 0.884 |
| 6 | −356,096.4 | −355,980.5 | 9797.0 | −355,950.5 | 0.94/0.89/0.90/0.92/0.95/0.97 | 0.7/0.9/0.8/0.9/0.9/0.9 | 28/12/28/16/12/4 | 0.897 |
| 7 | −353,099.9 | −352,964.7 | 5993.0 | −352,929.7 | 0.94/0.86/0.90/0.88/0.91/0.95/0.98 | 0.8/0.8/0.9/0.9/0.9/0.9/1.0 | 24/20/12/18/12/10/4 | 0.886 |
AIC: Akaike Information Criterion; AvePP: Average post-test grouping probability; BIC: Bayesian information criterion; NA: Not avalible; 2ΔBIC: Twice the difference between the BIC values.