Table 2.
Classes | AIC | BICa | BLMRT (p) | Entropy | Latent Class Prob. [Range] | Class Prevalence [Range] |
---|---|---|---|---|---|---|
Unconstrained modelss | ||||||
1 | 9315.57 | 9329.59 | --- | --- | --- | --- |
2 | 9260.06 | 9288.61 | p = 0.0099 | 0.575 | [0.8–0.92] | [0.39–0.61] |
3 | 9239.02 | 9282.10 | p = 0.0396 | 0.761 | [0.87–0.92] | [0.18–0.48] |
4 | 9197.48 | 9255.10 | p = 0.0099 | 0.835 | [0.86–0.99] | [0.08–0.54] |
5 | 9201.40 | 9273.55 | p = 0.2871 | 0.855 | [0.89–0.94] | [0.07–0.41] |
Constrained modelss | ||||||
1 | 9315.57 | 9329.59 | --- | --- | --- | --- |
2 | 9304.84 | 9322.48 | p = 0.0099 | 0.686 | [0.91–0.91] | [0.49–0.51] |
3 | 9278.02 | 9299.31 | p = 0.0099 | 0.795 | [0.9–0.96] | [0.02–0.5] |
4 | 9268.63 | 9293.55 | p = 0.0198 | 0.81 | [0.75–0.96] | [0.02–0.48] |
5 | 9269.58 | 9298.13 | p = 0.3069 | 0.754 | [0.71–0.88] | [0.01–0.44] |
Legend: AIC—Akaike Information Criterion, BIC—sample size adjusted Bayesian Information Criterion, BLRT(p)—bootstrapped Lo-Mendell-Rubin test. Lower AIC and BICa values indicate better fitting models. Significant p-values for the BLRT(p) indicate that the model is a better fit than a model which is 1 class lower. Entropy is a measure of how accurate a model is at classifying people into latent profiles. This is a number ranging from 0 to 1 and the value of 1 indicates the highest confidence. Latent class probabilities [range] provide a range (i.e., minimum and maximum) of probabilities of assigning each observation to a particular class. The higher the lower value of the range, the greater the likelihood of assigning observations to particular classes. Class prevalence [range]—the percentage of observations in the smallest and largest class. It should be higher than 0.05. In our case, the smallest class in the unconstrained models contains 8% of the observations for the whole group, so it is acceptable.