Evidence-Based Complementary and Alternative Medicine

Research Article

Development and Preliminary Validation of the Questionnaire (the First Edition) Based on TCM for Detecting Health Status in China

Table 3

Exploratory factor analysis of questionnaire.


Items, subscales, and total	EFA factor loadings										Communalities
Items, subscales, and total	Factor 1	Factor 2	Factor 3	Factor 4	Factor 5	Factor 6	Factor 7	Factor 8	Factor 9	Factor 10	Communalities

(I) Heart system
Palpitation	0.74	0.18	0.02	0.00	0.10	0.16	0.11	0.14	0.03	−0.09	0.66
Shortness of breath	0.62	0.25	0.10	−0.08	0.11	0.00	−0.16	−0.11	−0.07	0.12	0.53
Chest distress	0.60	0.12	0.11	−0.14	0.07	0.13	0.07	0.06	0.11	−0.18	0.49
Vexation	0.57	0.14	0.04	0.04	0.22	0.34	0.02	0.14	−0.07	−0.07	0.54
Dizziness	0.55	0.05	0.01	0.30	0.11	0.11	0.01	0.10	−0.06	0.03	0.44
Memory deterioration	0.52	−0.11	−0.03	0.11	−0.06	0.13	0.10	0.00	0.27	0.03	0.40
Edema	0.48	−0.07	−0.11	0.19	−0.13	0.00	0.12	−0.05	0.19	0.18	0.39
Lassitude in the knees	0.46	0.01	0.05	0.12	0.17	−0.23	0.35	−0.13	0.22	0.07	0.50
Fatigue	0.40	0.10	0.16	−0.01	0.38	−0.07	0.06	−0.10	−0.07	0.16	0.38
Soreness of the waist	0.39	−0.01	0.06	−0.08	0.19	0.04	0.19	−0.12	0.34	−0.14	0.39
Skin swelling	0.36	−0.12	−0.12	0.14	−0.11	−0.15	0.00	−0.03	0.09	0.33	0.33

(II) Spleen and stomach system
Vomit	−0.02	0.81	0.01	0.03	0.11	0.02	−0.04	0.13	0.11	0.03	0.69
Belching	0.14	0.75	0.00	−0.01	−0.05	−0.05	0.01	−0.04	0.06	−0.02	0.59
Nausea	−0.02	0.74	−0.01	0.00	0.15	−0.01	0.02	0.09	0.21	0.00	0.63
Abdominal distension	0.22	0.62	0.06	−0.02	−0.06	0.04	0.24	0.04	−0.10	−0.01	0.51
Acid regurgitation	0.07	0.55	0.07	0.20	−0.01	0.05	0.39	−0.07	−0.23	0.07	0.58

(III) Lung system
Nasal obstruction	−0.01	−0.11	0.72	−0.02	−0.10	0.04	−0.12	0.04	−0.13	−0.08	0.58
Cough	0.11	0.10	0.70	−0.05	0.07	−0.05	0.23	−0.01	0.21	−0.02	0.61
Running nose	0.01	−0.04	0.70	−0.01	−0.06	0.16	−0.07	0.22	−0.10	0.03	0.58
Expectoration	0.04	0.12	0.63	−0.03	0.00	0.08	0.28	0.05	0.23	0.13	0.57
Throat itching	0.02	0.10	0.62	0.22	0.14	−0.05	−0.05	−0.07	0.07	−0.05	0.48

(IV) Urine and stool
Dysuria	−0.06	0.05	0.02	0.81	0.07	0.13	−0.06	0.01	0.00	−0.07	0.69
Urgency of urination	0.27	−0.14	−0.04	0.67	0.08	−0.07	0.16	−0.05	0.16	−0.05	0.61
Frequency of micturition	0.15	−0.13	0.33	0.64	0.14	−0.07	0.04	−0.05	−0.01	−0.01	0.58
Diarrheas	−0.02	0.19	−0.05	0.63	−0.08	0.12	−0.09	0.04	−0.01	0.08	0.47

(V) Endocrine & Metabolic system
Overdrinking	0.03	−0.05	−0.05	−0.02	0.70	−0.05	−0.06	−0.02	−0.10	0.14	0.53
Dryness of mouth	0.21	0.11	0.09	0.21	0.69	0.07	0.02	0.06	−0.01	−0.06	0.60
Polydipsia	0.07	0.19	−0.02	0.19	0.69	0.11	0.05	0.09	0.09	−0.14	0.60
Polyuria	0.01	−0.07	−0.01	−0.10	0.65	0.00	0.08	−0.05	0.06	−0.03	0.45

(VI) Liver system
Insomnia, dream disturbed sleep	0.05	−0.04	−0.04	0.15	0.12	0.71	0.06	−0.08	0.29	0.14	0.66
Pruritus	0.29	−0.13	−0.08	0.21	0.12	0.64	0.11	−0.06	0.34	0.14	0.72
Neck symptoms	0.18	0.10	0.03	−0.04	−0.13	0.49	−0.08	−0.01	−0.17	0.08	0.35
Pain	0.30	0.14	0.11	−0.03	−0.04	0.44	0.19	−0.04	0.19	−0.17	0.42
Symptoms of bleeding	−0.02	−0.06	0.14	0.05	0.04	0.40	0.20	−0.08	−0.10	0.05	0.24

(VII) Head
Five sense organs	0.12	0.05	0.05	0.00	−0.01	−0.02	0.64	−0.01	0.10	−0.01	0.45
Throat	0.08	0.10	0.17	0.14	−0.01	0.10	0.53	0.03	−0.06	0.11	0.37
Mouth (bad breath)	−0.08	−0.01	−0.01	−0.10	0.09	0.16	0.48	0.01	0.17	−0.21	0.35
Teeth and gums	0.11	0.03	−0.15	−0.10	0.05	0.09	0.40	0.13	0.03	0.14	0.25

(VIII) Body
Waist and back	−0.02	0.08	0.09	−0.01	0.05	−0.08	−0.01	0.90	0.09	0.02	0.83
Chest and abdomen	−0.07	−0.09	0.09	0.00	0.02	−0.09	−0.09	0.70	0.12	0.10	0.56
Hoarse voice or aphonia	0.06	0.20	−0.07	−0.01	0.00	−0.07	0.27	0.45	−0.05	−0.11	0.34
Renal percussive pain	0.25	0.09	0.05	−0.02	−0.09	0.15	0.21	0.40	−0.21	−0.08	0.36

(IX) Kidney system
Hypoacusis	0.04	0.28	0.04	−0.09	0.10	−0.05	0.29	0.04	0.56	0.02	0.50
Arms and legs	0.19	0.04	0.01	0.08	−0.09	−0.07	−0.06	0.34	0.49	0.03	0.42
Tinnitus	0.06	0.01	0.06	0.11	−0.05	0.12	0.04	0.00	0.43	0.15	0.24
Simultaneous sweat and night sweat	0.19	0.38	0.12	−0.14	0.05	0.30	−0.19	−0.05	0.42	−0.09	0.54

(X) Skin
Complexion	0.03	0.03	−0.02	−0.05	0.05	0.05	0.08	−0.05	0.05	0.79	0.64
Skin color and luster	−0.01	0.01	−0.02	0.00	−0.01	0.11	−0.07	0.02	0.12	0.75	0.59
Skin diseases	−0.14	0.05	0.15	−0.07	−0.02	0.21	0.17	0.24	−0.13	0.38	0.34

Eigen values	3.72	3.16	2.64	2.45	2.40	2.15	2.12	2.09	1.95	1.88
% of variance	7.60	6.45	5.39	5.00	4.91	4.38	4.33	4.27	3.98	3.85
Cumulative %	7.60	14.05	19.44	24.45	29.35	33.73	38.06	42.33	46.31	50.15

Extraction method: principal component analysis. Varimax rotation with Kaiser normalization, sorted by size.
Bold font for the EFA factor loadings indicates the scale on which the items load.