An epidemiological study on anemia among institutionalized people with intellectual and/or motor disability with special reference to its frequency, severity and predictors

Table 9 Predictors of anemia among 438a institutionalized people with intellectual and/or motor disability, Ibaraki Prefecture, Japan.

	Multiple regression		Logistic regression
	Dependent variable:Hb		Dependent variable:anemia
Predictor	B	P	OR	95%C.I.	P
Sex (Male = 1, Female = 0)	1.32	<0.001	13.77	6.02 – 31.50	<0.001
Age (46 ≦ = 1, 46 > = 0)	-0.15	0.16	1.42	0.81 – 2.49	0.22
Body Mass Index (21.3 ≦ = 1, 21.13 > = 0)	0.35	0.001	0.57	0.34 – 0.96	0.03
Medications
Anticonvulsants and/or major tranquilizers	-0.44	<0.001	3.32	1.79 – 6.15	<0.001
Minor tranquilizers	0.05	0.77	0.77	0.38 – 1.59	0.48
Iron replacement	-0.13	0.61	1.88	0.54 – 6.54	0.32
Other medications ^b	-0.08	0.51	1.59	0.85 – 2.95	0.15
CRP (0.31 ≦ = 1, 0.31 > = 0)	-0.22	0.08	1.42	0.82 – 2.45	0.22
ZTT (12.1 ≦ = 1, 12.1 > = 0)	-0.34	0.01	1.90	1.06 – 3.39	0.03
People with cerebral palsy ^c	0.01	0.94	0.79	0.42 – 1.51	0.48
People with Down's syndrome ^c	0.73	0.001	0.24	0.06 – 0.94	0.04

Adjusted R-square = 0.29
^aData set for analysis excluded 39 people with severe motor and intellectual disabilities from all 477 subjects.
^bMedications except anticonvulsants and/or major tranquilizers, minor tranquilizers and iron replacement (i.e. gastrointestinal drugs, cold drugs, cardiovascular medication).
^cReference: people with intellectual disability
OR: Odds Ratio, C.I.: Confidence Interval,, C R P: C-reactive protein, ZTT: Zinc sulfate turbidity test.

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