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

Table 2 Principal component analysis

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

ISSN: 1472-6874