Table 1.
Fit statistics for the 2- to 5-group solution–based trajectory modeling of post volume among r/SuicideWatch users throughout the COVID-19 pandemic.
| Model | AICa | BICb | Entropyc | Compositiond, n/N (%) |
| 2-Group model | –39,605.31 | –39,659.12 | 0.96 | 744/6163 (12.07)/5419/6163 (87.93) |
| 3-Group model | –36,862.86 | –36,940.22 | 0.892 | 1562/6163 (25.34)/4379/6163 (71.05)/222/6163 (3.60) |
| 4-Group model | –35,890.32 | –35,981.12 | 0.836 | 625/6163 (10.14)/1502/6163 (24.37)/3936/6163 (63.87)/100/6163 (1.62) |
| 5-Group model | –36,099.67 | –36,190.48 | 0.873 | 293/6163 (4.75)/1699/6163 (27.57)/91/6163 (1.48)/4003/6163 (64.95)/77/6163 (1.25) |
aAIC: Akaike information criterion (a lower value is better).
bBIC: Bayesian information criterion (a lower value is better).
cEntropy (a value >0.8 is better).
dGroup composition (the percentage of the population represented in each subgroup should exceed 5%).