Table 5.

Factor analysis of cold and heat patterns in the cold-heat pattern questionnaire.

Item	Cold Pattern		Item	Heat Pattern
	Factor 1	Factor 2		Factor 1	Factor 2	Factor 3
Coldness in the limbs	0.860	-0.047	Feverish pain	0.852	0.053	-0.118
Cold pain	0.633	0.339	Body heat	0.678	-0.248	0.233
Coldness in the abdomen	0.606	0.097	Flushed face and eyes	0.638	0.202	-0.077
Aversion to cold	0.588	-0.100	Heat in the limbs	0.584	0.028	0.221
Preference for heat	0.538	-0.024	Thick yellow sputum and nasal mucus	0.025	0.635	-0.013
Prolonged voiding of colorless urine	-0.044	0.574	Dry stool	0.082	0.581	-0.114
Absence of thirst	0.080	0.514	Hot breath	0.259	0.539	0.124
Loose stools	0.106	0.497	Scanty voiding of dark-colored urine	-0.118	0.468	0.126
Pale face	0.281	0.469	Preference for cold	-0.003	-0.026	0.789
Thin clear sputum and nasal mucus	-0.122	0.328	Thirst	0.090	0.137	0.306
Variance explained (%)	26.67	10.34	Variance explained (%)	27.00	11.02	6.90

Note: bold numbers indicate the greatest factor loading among the three factors and their corresponding items.