Differences in the Tongue Features of Primary Dysmenorrhea Patients and Controls over a Normal Menstrual Cycle

Table 5

Associations between menstrual pain and the tongue features.

Variable	VAS		CMSS
	Duration of menstrual pain	Severity of menstrual pain	Duration of menstrual pain	Severity of menstrual pain
Tongue body colors
	−.130	−.411	−.156	−.168
	−.076	.357	.141	.159
	−.063	.187	.184	.179
Tongue coating colors
	.022	−.402	−.260	−.240
	−.071	.241	.020	.087
	.022	.317	.201	.233
Tongue coating thickness
Total	.053	−.444	−.183	−.236
Root	.091	−.394	−.116	−.189
Center	.048	−.449	−.279	−.293
Tip	−.074	−.414	−.252	−.164

< 0.05, < 0.01.