Fit indices for group-based trajectory and multi-trajectory modelling of WHODAS 2.0 overall and domain scores among postpartum women in Northwest Ethiopia, 2021
| Number of trajectories across the six domains of WHODAS 2.0 | Polynomial function order across the six domains of WHODAS 2.0 | BIC | Posterior probability | Entropy | Proportions in each trajectory | ||
| 1 | 2 | 3 | |||||
| 1 | Cognition (1) Mobility (2) Self-care (2) Getting along (1) Life activities (2) Participation (1) | −35 502.12 | 1.0 | NA | 100 | ||
| 2 | Cognition (1, 1) Mobility (1, 2) Self-care (2, 1) Getting along (1, 1) Life activities (2, 1) Participation (1, 1) | −29 638.31 | 1.0 | 0.987 | 55.0 | 45.0 | |
| 3 | Cognition (1, 1, 1) Mobility (1, 1, 2) Self-care (2, 1, 1) Getting along (1, 1, 1) Life activities (2, 1, 1) Participation (1, 1, 1) | −28 466.42 | 0.999 | 0.993 | 51.9 | 24.7 | 23.4 |
| Number of trajectories for WHODAS 2.0 overall score | Polynomial function order for WHODAS 2.0 overall score | BIC | Posterior probability | Entropy | Proportions in each trajectory | |||
| 1 | 2 | 3 | 4 | |||||
| 1 | 1 | −6791.37 | 1.0 | NA | 100 | |||
| 2 | 2, 2 | −5978.60 | 1.0 | 0.940 | 54.9 | 45.1 | ||
| 3 | 2, 2, 2 | −5677.60 | 0.998 | 0.944 | 52.7 | 32.1 | 15.2 | |
| 4 | 1, 1, 1, 1 | −5574.08 | 0.952 | 0.917 | 46.8 | 19.1 | 21.3 | 12.8 |
BIC, Bayesian Information Criterion; NA, Not applicable; WHODAS 2.0, WHO Disability Assessment Schedule 2.0.