Magnitude and associated factors of menstrual irregularity among undergraduate students of Debre Berhan University, Ethiopia

Table 4 Multi-variable analysis result of factors associated with menstrual irregularity

Variable	Categories	Irregular menstruation		AOR (95% CI)	p-value
Variable	Categories	Yes	No	AOR (95% CI)	p-value
Sexually transmitted disease	Yes		3	3.981(0.806–19.675)	0.09
Sexually transmitted disease	No	196	415	Reference
Anemia	Yes	61	53	2.145 (1.337–3.441)**	0.002
Anemia	No	141	365	Reference
History of contraceptive	Yes	29	30	1.558 (0.840–3.001)	0.154
History of contraceptive	No	173	388	Reference
Alcohol score	High risk	33	22	2.415 (1.25–4.666)**	0.009
Alcohol score	Low risk	169	396	Reference
Sleep hour	≤ 5	44	24	5.423 (2.975–9.888)**	0.000
	6–7	80	139	1.937 (1.291–2.907)**	0.014
	≥ 8	78	255	Reference
Stress level	high stress	46	26	3.322 (1.858–5.940)**	0.001
Stress level	low stress	156	392	Reference
Goiter/IDD	Yes	13	6	3.927 (1.325–11.636)**	0.014
Goiter/IDD	No	189	412	Reference
Materials used for sanitation	Cloth	9	7	1.804 (0.583–5.585)	0.306
	Other	3	2	1.946 (0.240–15.783)	0.533
	Modes	190	409	Reference
BMI	Underweight	49	65	1.777 (1.109–2.847)**	0.017
	Overweight	13	39	0.756 (0.360–1.585)	0.459
	Obese	3	3	2.629 (0.459–15.061)	0.278
	Normal	137	311	Reference

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