Table 3. Severity of Systemic Signs Associated With Dysmenorrhea Before and After the Intervention in Study Groups ^a,b.

Treatment Round	Before Treatment	Four Weeks After Treatment	Eight Weeks After Treatment	P Value
	Percentiles, 50 (25-75)	Percentiles, 50 (25-75)	Percentiles, 50 (25-75)
Wheat Germ Extract	0.690 (0.518-1.020)	0.272 (0.168-0.428)	0.227 (0.116-0.295)	0.000
Placebo	0.699 (0.428-0.959)	0.541 (0.285-0.832)	0.525 (0.285-0.862)	0.20
P value	0.620	0.001	0.000

^a Man-Whitney U test.

^b Friedman & Bonferroni.