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Table 2 Results of the latent class analysis: model fit indices comparing different class solutions

From: Identifying the Zheng in psoriatic patients based on latent class analysis of traditional Chinese medicine symptoms and signs

Index Number of class (k)
  2 3* 4 5
BIC 31936 31788 31987 31904 
VLMR LR test (p-value) 0.0004 0.037 0.7025 0.9799
Proportion of each class 47.3% 35.1% 24.1% 21.9%
  52.7% 34.7% 21.1% 16.0%
  30.2% 21.9% 31.4%
  32.9% 9.1%
  21.6%
  1. *Best fitted model.