Multivariate Analysis as a Method for Evaluating the Conceptual Perceptions of Korean Medicine Students regarding Phlegm Pattern

Table 4

Factor Loadings for the items of the phlegm pattern questionnaire responded by the first-year students.

Item	Factor
	1	2	3	4	5	6	7	8	9
Sputum	0.849	0.083	0.043	−0.180	0.004	−0.120	−0.255	0.132	0.201
Cough	0.847	−0.019	0.196	−0.092	−0.065	0.092	0.083	0.149	0.034
Feeling of foreign body in the throat	0.799	0.233	−0.053	0.226	−0.096	−0.149	−0.168	−0.041	0.076
Shortness of breath	0.626	0.116	−0.073	0.205	−0.055	0.156	0.512	−0.125	−0.104
Indigestion	0.130	0.840	0.105	−0.148	0.030	0.091	0.065	0.272	−0.008
Sickness	0.150	0.788	−0.071	0.226	−0.086	−0.268	0.035	−0.107	0.053
Lumps	−0.035	0.605	−0.031	0.556	0.029	0.064	−0.198	0.037	0.244
Poor appetite	−0.029	0.585	0.557	−0.013	−0.052	−0.009	0.186	0.179	0.064
Fatigue	0.042	−0.048	0.830	0.017	0.005	0.061	0.173	0.088	0.003
Feeling heavy in the limbs	0.030	0.052	0.793	0.050	0.194	−0.045	0.243	0.247	−0.151
Yellowish face	0.228	0.433	0.582	0.137	0.114	−0.124	−0.247	−0.227	−0.185
Tinnitus	0.025	0.012	−0.066	0.792	0.081	−0.067	0.299	0.097	−0.133
Dizziness	0.017	−0.038	0.243	0.703	0.017	0.442	0.085	−0.179	−0.212
Flank pain	−0.385	0.283	0.183	0.453	0.367	−0.166	0.110	0.215	0.298
Itching	−0.010	0.016	0.072	−0.121	0.880	−0.055	0.020	−0.198	−0.136
Joint pain	−0.183	−0.112	0.104	0.097	0.811	0.190	−0.119	−0.001	0.234
Dark circle under the eyes	0.010	0.013	−0.006	0.221	0.735	0.152	0.237	0.221	−0.266
Headache	−0.028	−0.008	0.080	0.183	0.051	0.866	−0.039	0.133	0.016
Unclearness in the head	0.015	−0.011	−0.083	−0.080	0.100	0.820	−0.127	−0.090	−0.005
Mucousy stool	0.148	0.304	0.203	0.411	−0.067	−0.458	−0.108	0.376	−0.023
Palpitation	−0.028	0.118	0.235	0.262	0.084	−0.132	0.702	−0.006	−0.022
Startled by faint noise	−0.235	−0.051	0.297	−0.025	0.022	−0.115	0.687	0.272	0.045
Rumbling sound in the abdomen	0.089	0.102	0.192	0.061	−0.014	−0.056	0.074	0.863	−0.019
Feeling of abdominal fullness	0.106	0.529	0.076	−0.081	−0.061	0.211	0.211	0.572	−0.313
Feeling heavy in the chest	0.218	0.067	−0.143	−0.142	−0.106	0.015	0.003	−0.093	0.878
Variance explained (%)	11.57	11.20	9.61	8.98	8.93	8.80	7.26	7.17	5.40

Symptoms with factor loading ≥0.4 are marked bold.