Table 3.

Cross-Tabulation of Severity of Premenstrual Disorders Assessed by the PSQ and the PMDD Scale (n = 879 Students)

		PMDD Scale
		No/Mild PMS	Moderate to Severe PMS	PMDD	Total
PSQ	No/mild PMS	694	64	5	763
	Moderate-to-severe PMS	19	58	8	85
	PMDD	3	13	15	31
	Total	716	135	28	879

Note: The relevant number of students in each table cell are presented here.

Weighted kappa (95% confidence interval): 0.65 (0.58–0.72), P < 0.001

Abbreviations: PSQ, Premenstrual Symptoms Questionnaire; PMDD, premenstrual dysphoric disorder; PMS, premenstrual syndrome.