From: Factor analysis of the clustering of common somatic symptoms: a preliminary study
 | Factor | |||
---|---|---|---|---|
 | 1 Pain Symptoms | 2 Cold Symptoms | 3 Cardiopulmonary Symptoms | 4 Gastrointestinal Symptoms |
Neck pain or stiffness | 0.61 | -0.16 | 0.22 | 0.44 |
Chest pain | 0.24 | 0.03 | 0.74 | 0.28 |
Sensation of dyspnea or asphyxia | 0.22 | 0.13 | 0.70 | 0.17 |
Palpitation | 0.18 | 0.35 | 0.58 | 0.32 |
Poor appetite | 0.17 | 0.36 | 0.12 | 0.62 |
Stomach ache or abdominal discomfort | 0.15 | 0.14 | 0.14 | 0.76 |
Constipation or diarrhea | 0.16 | 0.27 | 0.07 | 0.65 |
Low back pain | 0.65 | -0.04 | 0.23 | 0.32 |
Sensation of anesthesia | 0.72 | 0.21 | 0.19 | 0.07 |
Sensation of heavy limbs | 0.55 | 0.45 | 0.24 | 0.04 |
Joint pain | 0.72 | 0.31 | 0.03 | 0.04 |
Muscle weakness | 0.53 | 0.48 | 0.29 | 0.07 |
Clod sweating | 0.09 | 0.59 | 0.19 | 0.23 |
Feeling too warm or cold | 0.03 | 0.71 | 0.13 | 0.21 |
Shuddering | 0.23 | 0.63 | 0.09 | 0.13 |
Muscle pain | 0.74 | 0.11 | 0.17 | 0.22 |
Frequent micturition | 0.10 | 0.20 | 0.60 | -0.10 |
% Variance explained | 19.1 | 13.3 | 12.6 | 12.2 |
Cumulative variance | 19.1 | 32.4 | 45.0 | 57.1 |