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Table 2 Principal component analysis

From: Subgrouping of Japanese middle-aged women attending a menopause clinic using physical and psychological symptom profiles: a cross-sectional study

  Eigenvalue % of variance Eigenvector
Principal component 1: 6.89 32.8  
”depression”
Low energy    0.321
Depressed mood    0.318
Lack of enjoyment    0.302
Principal component 2: 1.91 9.1  
”somatic”
Dizziness    0.371
Muscle and joint pains    0.320
Nausea    0.318
Principal component 3: 1.28 6.1  
”vasomotor/sleep”
Night sweats    0.434
Difficulty in initiating sleep    0.318
Hot flush    0.317