Table 2. Internal reliability and test – retest reliability of the Vietnamese MRS

MRS dimension	Scale item	Item–test correlation	Cronbach’s alpha	Test–retest reliability
				ICC	95% CI
Somatic-vegetative dimension			0.81	0.964	0.922 – 0.983
Hot flashes, sweating	1	0.68
Heart discomfort	2	0.61
Sleep problems	3	0.74
Joint and muscular discomfort	11	0.66
Psychological dimension			0.82	0.988	0.974 – 0.995
Depressed mood	4	0.74
Irritability	5	0.69
Anxiety	6	0.75
Physical and mental exhaustion	7	0.55
Urogenital dimension			0.94	0.985	0.968 – 0.993
Sexual problems	8	0.73
Bladder problems	9	0.68
Vaginal dryness	10	0.76
Total MRS score			0.89	0.991	0.981 – 0.996