Table 1.

Comparison of psychiatric scores (SCL-90-R) in PMS and healthy groups in two phases of reproductive cycle, and time grouping interaction (repeated measure variance) at University of Guilan (N=390) ^‡

Psychological Symptoms	Students with PMS		Students Without PMS		DSR grouping p-Value	Time grouping p-value	Time*DSR grouping p-value	DSR grouping F	Time grouping F	Time*DSR grouping F
	Day 3	Day 13	Day 3	Day 13
Depression	1.26	1.05	0.76	0.67	<0/05	<0/05	ns	39.42	17.40	2.89
	(0.78)	(0.73)	(0.68)	(0.63)
Anxiety	1.06	0.91	0.54	0.49	<0/05	<0/05	ns	56.28	7.87	2.30
	(0.71)	(0.70)	(0.57)	(0.50)
Aggression	0.94	0.73	0.50	0.41	<0/05	<0/05	<0/05	46.07	19.76	3.81
	(0.71)	(0.60)	(0.46)	(0.44)
Interpersonal sensitivity	1.17	0.93	0.63	0.58	<0/05	<0/05	<0/05	41.53	20.36	7.73
	(0.75)	(0.73)	(0.62)	(0.57)
GSl†	1.09	0.91	0.61	0.53	<0/05	<0/05	ns	59.37	25.37	3.52
	(0.61)	(0.61)	(0.46)	(0.42)

^‡Results are given as Mean, Standard Deviation (in parenthesis)

^†Global Severity Index

DSR (Daily Symptom Rating) grouping: comparison of PMS and Healthy group

Time grouping: comparison of scores of the total sample in the two phases of the cycle

Time×DSR grouping: comparison of the scores of the PMS and Healthy groups in the two phases of cycle.