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Table 3 Prominent items (probability higher than 0.6) in each class

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

Diagnosis method Class 1 (n = 178) Class 2 (n = 176) Class 3 (n = 153)
  Dampness-heat Zheng Blood heat Zheng Yin deficiency and blood dryness Zheng
Inspection Darker skin color* (73.1%) Garnet skin color* (62.3%) Pink skin color* (92.2%)
   Darker skin color (60.2%)  
Sore throat* (87.6%)
  Sore throat (76.4%) Pharyngeal wall
Follicular* (67.8%)  
Fissured tongue (63.3%)
  Red tongue* (60.7%) Crimson tongue* (77.0%) Red tongue* (61.5%)
Flabby tongue (62.9%) Red tip of tongue (65.1%)
Teeth-printed tongue (65.7%) Thin tongue* (66.7%)
Yellow tongue coating* (72.7%) Thin tongue coating* (81.5%)
Thick tongue coating*(80.6%) Less tongue coating* (92.3%)
Greasy coating* (98.5%)
  Scanty dark urine* (67.9%)
Auscultation and olfaction Fetid breath (62.5%)
Interrogation Predilection pungent (72.0%) Predilection pungent (77.2%)
  Attacking on depression and morose (71.8%) Predilection cold and raw food (62.3%)
  Anxiety and irritability* (73.5%)
   Frequent dreams (65.8%)
   Constipation* (65.7%)
  Aggravated after coldness (72.3%)
  Slight itching (61.5%)
  Overexertion* (61.8%)
Palpation Slippery pulse* (68.9%) Thready pulse* (64.5%)
  Rapid pulse* (66.8%)
  1. *Essential item predominating in each Zheng class.