The odds ratio of test anxiety level and some of the intervening variables affecting the incidence of menstrual disorders

Table 4: The odds ratio of test anxiety level and some of the intervening variables affecting the incidence of menstrual disorders in the first and second cycles following the exam period using stepwise logistic regression.

Variable	First cycle following the exam period				Second cycle following the exam period
	OR	P-value	95% CI of the OR		OR	P-value	95% CI of the OR
	OR	P-value	Lower bound	Upper bound	OR	P-value	Lower bound	Upper bound
Test anxiety level	-	-	-	-	0.407	< 0.001	0.254	0.651
Academic term	0.593	0.01	0.399	0.881	-	-	-	-
Academic level	-	-	-	-	0.131	< 0.001	0.048	0.354
Ethnicity	-	-	-	-	0.756	0.009	0.612	0.933
Economic status	-	-	-	-	0.638	0.001	0.486	0.838
History of taking OCPs	1.936	0.032	1.06	3.535	-	-	-	-
Use of medications affecting menstruation	2.462	0.003	1.363	4.449	3.44	< 0.001	1.782	6.643
Mental illness and depression	5.747	0.002	1.925	17.151	9.748	0.001	2.496	38.074
Variables that could predict the incidence of menstrual disorders in the first and the second cycle following the exam period according to logistic regression model.