The Japanese Version of the Daily Record of Severity of Problems for Premenstrual Symptoms: Reliability and Validity Among the General Japanese Population

Figures & data

Figure 1 Time course of the study design.

Abbreviations: M1, menstruation of the first cycle; M2, menstruation of the second cycle; M3, menstruation of the third cycle; DRSP-J, Japanese version of the Daily Record of Severity of Problems; CD, cycle of the day; EQ-5D-5L, EuroQol-5 Dimensions-5 Levels; HADS, Hospital anxiety and depression scale.

Table 1 Factor Coefficients of the DRSP-J After Promax Rotation (N=113)

	Factor 1 (Mood)	Factor 2 (Behavior/Physical)
1a	1.01	−0.12
1b	0.97	−0.09
3a	0.94	−0.11
3b	0.93	−0.06
1c	0.93	−0.05
2	0.87	0.04
10a	0.71	0.22
7	0.69	0.26
4b	0.65	0.16
5	0.59	0.32
4a	0.56	0.18
6	0.46	0.42
11c	0.40	0.36
8b	−0.05	0.85
8a	0.07	0.78
9b	0.09	0.75
11b	0.03	0.66
11a	−0.15	0.63
11d	0.04	0.60
10b	0.33	0.59
9a	0.39	0.50
Eigenvalue	12.18	2.27
% of variance explained	51.91	40.27
Correlation between factors
Factor 1	1.00
Factor 2	0.59	1.00

Notes: Values above 0.3 are expressed in bold. 1a, Depressed/sad/blue; 1b, Hopeless; 1c, Worthless/guilty; 2, Anxious/tense/on edge; 3a, Mood swings; 3b, Sensitive to rejection; 4a, Anger/irritability; 4b, Conflict/problems; 5, Less interest, 6, Difficulty concentrating; 7, Lethargic/tired/fatigued; 8a. Increased appetite, 8b, Crave specific foods; 9a, Sleep more; 9b, Trouble sleeping; 10a, Overwhelmed, cannot cope; 10b, Out of control; 11a, Breast tenderness; 11b, Breast swelling/“bloated;” 11c, Headache; 11d, Joint/muscle pain.

Abbreviation: DRSP-J, Japanese version of the Daily Record of Severity of Problems.

Table 2 Characteristics of Study Participants (N=113)

Characteristic
Age (years), mean (SD)	34.0 (7.6)
Height (cm), mean (SD)	158.5 (5.3)
Body weight (kg), mean (SD)	53.2 (7.8)
DRSP-J total score (luteal phase, Cycle 1), median (IQR)	32.4 (24.6–45.1)
DRSP-J total score (luteal phase, Cycle 2), median (IQR)	30.2 (24.2–43.4)

Abbreviations: SD, standard deviation; DRSP-J, Japanese version of the Daily Record of Severity of Problems; IQR, interquartile range.

Table 3 Internal Consistency (Cronbach’s α) for the Summary Scores of the DRSP-J (N=113)

	Luteal Phase Score (Cycle 2)	Follicular Phase Score (Cycle 3)
Total score	0.96	0.95
Negative mood score	0.95	0.96
Factor 1: Mood	0.96	0.95
Factor 2: Behavior/Physical	0.88	0.87

Abbreviation: DRSP-J, Japanese version of the Daily Record of Severity of Problems.

Table 4 Test-Retest Intraclass Correlation Coefficients of DRSP-J Total Scores and Negative Mood Score (N=113)*

	Mid Follicular Phase Day 9 vs Day 10 (Cycle 3)	Late Luteal Phase Day −2 vs Day −1 (Cycle 2)
Total score (95% CI)	0.69 (0.58–0.78)	0.84 (0.60–0.92)
Negative mood score (95% CI)	0.65 (0.53–0.74)	0.79 (0.71–0.85)

Note: *All P < 0.001.

Abbreviations: CI, confidence interval; DRSP-J, Japanese version of the Daily Record of Severity of Problems.

Figure 2 Scree plot for the DRSP-J.

Abbreviation: DRSP-J, Japanese version of the Daily Record of Severity of Problems.

Table 5 Correlation of Luteal Phase DRSP-J Score with HADS and EQ-5D-5L (N=113)

	Cycle 1				Cycle 2
	HADS			EQ-5D-5L	HADS			EQ-5D-5L
	A	D	Total		A	D	Total
Total score	0.587	0.547	0.627	−0.677	0.721	0.550	0.707	−0.659
Negative mood score	0.635	0.505	0.628	−0.719	0.741	0.476	0.671	−0.693

Abbreviations: A, anxiety scores; D, depression scores; DRSP-J, Japanese version of the Daily Record of Severity of Problems; HADS, Hospital Anxiety and Depression Scale; EQ-5D-5L, EuroQol 5 dimensions 5-level.

Table 6 Consistency Between Conventional Clinical Judgement and Severity Classification by DRSP-J Score (N=113)

		DRSP-J
		No or Mild PMS	Moderate to Severe PMS	PMDD
Clinical judgement	No or mild PMS	101	1	0
	Moderate to severe PMS	4	6	0
	PMDD	0	0	1

Notes: The relevant number of participants in each table cell is presented. Weighted kappa (95% confidence interval):0.78 (0.57–1.00), P < 0.001).

Abbreviations: DRSP-J, Japanese version of the Daily Record of Severity of Problems; PMDD, premenstrual dysphoric disorder; PMS, premenstrual syndrome.

Table 7 Comparison of EQ-5D-5L Scores in the Luteal Phase by Severity of Premenstrual Symptoms

Clinical Judgement	Cycle 1	P (r)	Cycle 2	P (r)
No or mild PMS, mean (SD), N=102	0.843 (0.119)	0.009^a (0.245)	0.870 (0.122)	0.003^a (0.278)
Moderate to severe PMS + PMDD, mean (SD), N=11	0.743 (0.117)		0.751 (0.127)

Note: ^aStudent’s t-test.

Abbreviations: EQ-5D-5L, EuroQol 5 dimensions 5-level; SD, standard deviation; PMS, premenstrual syndrome; PMDD, premenstrual dysphoric disorder.

Data Sharing Statement

The data obtained in this study are available from the corresponding author upon request.