Table 1: The Premenstrual Syndrome [PMS) Scale and the average range of subscale scores [n=503)

*PMS positive.

Characteristic	n	%	Mean±SD	Analyze**
Age
<20 ≥ 21	384 119	76.3 23.7	110.80±35.14 123.98±37.68	t=3.511 p<0.001*
Living area
Rural District Center of province	34 100 369	6.8 19.9 73.4	117.23±47.68 107.10±34.34 115.47±35.30	F=1.37 p=0.010*
Individual living status
With family With friends Alone	206 276 21	41 54.9 4.2	110.41±34.71 115.88±36.20 122.61±46.78	F=1.33 p=0.017*
History of PMS in the first degree relatives
Yes No	233 270	46.3 53.7	123.42±37.18 105.72±33.19	t=5.641** p<0.001*
Regular physical activity
Yes No	135 368	26.8 73.2	110.16±36.85 115.30±35.85	t=1.415 p=0.158**
Daily coffee intake
Yes No	152 351	30.2 69.8	123.51±37.76 109.77±34.68	t=3.970** p<0.001*
Frequent salt intake habit
Yes No	132 371	26.2 73.8	125.71±39.42 109.73±34.00	t=4.441** p<0.001*
Smoking
Yes No	38 465	7.6 92.4	139.07±45.11 111.87±34.58	t=4.546** p<0.001*
Alcohol use
Yes No	41 462	8.2 91.8	129.78±46.26 112.51±34.83	t=2.952** p=0.003*

Table 2: The range of mean scores of Premenstrual Syndrome [PMS) Scale of students according to some characteristics [n=503)

*p-value<0.05; **t test, *** One way Anova

		Total and Subscale scores of PMS
MAQ subscale		Depressive feeling	Anxiety	Fatigue	Irritability	Depressive thought	Pain	Changes in appetite	Changes in sleeping habits	Bloating	Total
Menstruation as a debilitating event	r	-0,177^a	-0,079	-0,280^a	-0,137^a	-0,122^a	-0,137^a	-0,178^a	-0,082	-0,163^a	-0,204^a
Menstruation as a bothersome event	r	-0,109^b	0,009	-0,081	-0,120^a	-0,059	-0,120^a	-0,099^a	0,008	-0,050	-0,092^b
Menstruation as a natural event	r	0,011	0,031	0,047	0,031	-0,014	0,031	0,042	0,110^b	0,115^a	0,051
Anticipation and prediction of the onset of menstruation	r	-0,427^b	-0,263^a	-0,361^a	-0,511^a	-0,343^a	-0,511^a	-0,342^a	-0,298^a	-0,470^a	-0,479^a
Denial of any effects of menstruation	r	-0,146^a	-0,072	-0,105^b	-0,194^a	-0,090^b	-0,194^a	-0,100^b	-0,040	-0,101^b	-0,139^a
MAQ total	r	-0,338^a	-0,139^a	-0,313^a	-0,350^a	-0,236^a	-0,263^a	-0,150^a	-0,285^a	-0,268^a	-0,335^a