Factors associated with anaemia and iron deficiency among women of reproductive age in Northeast Thailand: a cross-sectional study

Table 4 Logistic regression analysis for anaemia and ID among women of reproductive age in northeast Thailand

	Variable	n	Adjusted OR* (95%CI)		p-value
Anaemia	Iron status
	Non-ID (reference)	265
	ID	105	4.9	(2.8–8.3)	< 0.001
	Thalassemia type
	Non-thalassemia (reference)	143
	One α-gene defect^a	53	1.1	(0.5–2.6)	0.754
	Two α-gene defects^b	22	8.0	(3.0–21.3)	< 0.001
	Hb E trait	95	1.9	(1.0–3.5)	0.055
	Hb E trait with one α-gene defect	28	0.9	(0.3–2.5)	0.793
	Hb E trait with two α-gene defects	10	2.8	(0.7–11.7)	0.149
	Homozygous Hb E	19	8.5	(3.0–24.3)	< 0.001
ID	Drink coffee/tea
	No (reference)	93
	Yes	276	1.7	(0.9–3.3)	0.113
	Blood donation in recent 3 months
	No (reference)	335
	Yes	31	6.7	(2.8–16.3)	< 0.001
	Blood loss during menstruation/day
	Low (reference)	143
	Moderate to high	160	2.2	(1.3–3.9)	0.003

ID Iron deficiency
^aIncluding α⁺-thalassemia trait, Hb CS trait
^bIncluding homozygous α⁺-thalassemia, homozygous Hb CS, α⁰-thalassemia trait, and β-thalassemia trait
*For anaemia, adjusted for length of menstruation and blood donation in recent 3 months; For ID, adjusted for BMI and length of menstruation

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