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. 2015 Oct 11;2015:863685. doi: 10.1155/2015/863685

Table 3.

Exploratory factor analysis of questionnaire.

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