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. 2022 May 27;19(11):6525. doi: 10.3390/ijerph19116525

Table 2.

Comparing model fit for different classes profiles in studied models.

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.