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. Author manuscript; available in PMC: 2010 Jul 14.
Published in final edited form as: J Int Neuropsychol Soc. 2009 Dec 4;16(2):233–243. doi: 10.1017/S1355617709991160

Table 3. Latent Class Model.

Class 1 Mild Class 2 Attention/Construction Class 3 Memory Class 4 Severe
Latent Class prevalence (gamma parameters)
24.4% 14.3% 35.4% 25.9%
Probability of <median score on cognition subscale (rho parameters)
DRS-2 subscales
Attention 0.2165 0.7574 0.3904 0.8376
Conceptualization 0.1469 0.5675 0.5596 0.8132
Construction 0.0897 0.4224 0.0647 0.5863
Memory 0.0493 0.1409 0.8802 0.9683
Initiation/Perseveration 0.0981 0.4669 0.5095 0.8916
MMSE subscales
Attention 0.1523 0.6834 0.2504 0.7988
Construction 0.1716 0.598 0.2443 0.731
Memory 0.2747 0.3173 0.7047 0.7863
Language 0.0885 0.4801 0.2616 0.5108
Orientation 0.1902 0.1702 0.7729 0.9324
Praxis 0.1051 0.2228 0.1596 0.2128

Probabilities greater than 0.5 presented in bold to illustrate important items