Research Article

The Difference between the Two Representative Kampo Formulas for Treating Dysmenorrhea: An Observational Study

Table 3

Baseline characteristics of the patients included in the comparison and model-development analysis.

⁢The comparison and model development set valueOther formulas
TSS groupKBG group

Number of patients6068N/A86
Age at consultation
 Mean ± SD33.3 ± 7.932.5 ± 8.70.59533.0 ± 8.1
 Median33330.74233
 Range17–5012–5013–49
 N/A0 (0.0)0 (0.0)0 (0.0)
Age at menarche, years
 Mean ± SD12.2 ± 1.512.3 ± 1.60.75312.7 ± 1.6
 Median12120.93212
 Range9–169–179–17
 N/A0 (0.0)2 (2.9)2 (2.3)
Menstrual cycle, days
 Mean ± SD29.0 ± 5.729.3 ± 3.60.77228.9 ± 4.5
 Median28280.77128
 Range16–6025–4517–60
 N/A6 (10.0)16 (23.5)10 (11.6)
Bleeding period, days
 Mean ± SD5.8 ± 1.35.9 ± 1.90.8415.5 ± 1.6
 Median660.7475
 Range3–93–143–14
 N/A4 (6.7)9 (13.2)7 (8.1)
BMI, kg/m2
 Mean ± SD19.8 ± 2.321.6 ± 3.50.00120.6 ± 2.9
 Median19.421.00.00020.0
 Range15.9–26.717.0–39.815.6–30.1
 <18.5 (slim)21 (35.0)6 (8.8)0.00026 (30.2)
 ≥25 (obese)2 (3.3)9 (13.2)0.0607 (8.1)
 N/A2 (3.3)1 (1.5)4 (4.7)
Use of OCs
 No54 (90.0)63 (92.6)0.75477 (89.5)
 Yes6 (10.0)5 (7.4)9 (10.5)
Delivery
 No54 (90.0)62 (91.2)175 (87.2)
 Yes6 (10.0)6 (8.8)11 (12.8)
Abortion
 No53 (88.3)61 (89.7)174 (86.0)
 Yes7 (11.7)7 (10.3)12 (14.0)
Diagnosed organic disease
 No52 (86.7)53 (77.9)0.25181 (94.2)
 Endometriosis6 (10.0)8 (11.8)0.7854 (4.7)
 Adenomyosis2 (3.3)8 (11.8)0.1032 (2.3)
Infertility (primary and secondary)
 No59 (98.3)64 (94.1)0.37081 (94.2)
 Yes1 (1.7)4 (5.9)5 (5.8)

TSS, tokishakuyakusan; KBG, keishibukuryogan; N/A, not available; BMI, body mass index; OCs, oral contraceptives.
Findings are expressed as mean ± SD, median, range, or number with percentage in parentheses.
values were calculated using -test, Wilcoxon’s rank sum test, and Fisher’s exact test.