Examining the association between menstrual symptoms and health-related quality of life among working women in Japan using the EQ-5D

Table 2 Multivariate linear regression analysis of the Health-related Quality of Life (HRQoL) score on menstrual symptoms (n = 5609)

	Coefficient (b)	p value	Confidence Interval
Independent variables—Menstrual symptoms
Abdominal pain	− 0.103	0.000	− 0.112	− 0.093
Back ache	− 0.036	0.000	− 0.045	− 0.026
Sleepiness	− 0.013	0.009	− 0.022	− 0.003
Diarrhoea and/or constipation	− 0.028	0.000	− 0.038	− 0.019
Irritation	− 0.005	0.308	− 0.015	0.005
Breast swelling	− 0.004	0.428	− 0.013	0.006
Fatigue	− 0.032	0.000	− 0.042	− 0.021
Headache	− 0.046	0.000	− 0.056	− 0.035
Depressed mood	− 0.045	0.000	− 0.057	− 0.034
Appetite increase/decrease	− 0.001	0.828	− 0.012	0.010
Swelling	− 0.002	0.798	− 0.014	0.011
Heavy bleeding	− 0.061	0.000	− 0.074	− 0.049
Shoulder pain	0.008	0.208	− 0.005	0.022
Concentration loss	− 0.035	0.000	− 0.049	− 0.022
Lethargy	− 0.038	0.000	− 0.053	− 0.023
Coldness	− 0.023	0.005	− 0.039	− 0.007
Itching	0.007	0.428	− 0.010	0.025
Hot flash	− 0.017	0.221	− 0.043	0.010
Sweating	− 0.014	0.379	− 0.045	0.017
Other	− 0.067	0.000	− 0.098	− 0.037
Control variables
Regularity of menstruation	0.020	0.000	0.009	0.032
Age 20–29	− 0.037	0.549	− 0.157	0.084
Age 30–39	− 0.037	0.549	− 0.157	0.083
Age 40–49	− 0.022	0.715	− 0.143	0.098
Age 50 and over
Intercept	0.877	0.000	0.757	0.998
Model statistics
F test	69.070	0.000
R-squared	0.254
Root MSE	0.174

ISSN: 1472-6874