Table 1

Characteristics in 315 institutionalized people with intellectual disability, Ibaraki prefecture, Japan.


Male (n = 197)
Female (n = 118)



Age (years)
40.3 ± 14.0
47.1 ± 11.4
Intellectual quotients
29.0 ± 10.1 (n = 107)
28.8 ± 10.8 (n = 81)
Height (cm)
158.8 ± 9.6
146.4 ± 8.0
Weight (kg)
54.4 ± 11.5
47.1 ± 8.2
Body mass index (kg/m2)
21.5 ± 3.6
22.0 ± 3.8
Red blood cell (× 106/μl)
4.5 ± 0.5
4.1 ± 0.3
White blood cell (× 103/μl)
5.9 ± 1.8
5.6 ± 1.7
Hemoglobin (g/dl)
13.7 ± 1.2
12.6 ± 0.8
Anemic people (n)
81 (41.1%)
5 (4.2%)
Fe (μg/dl)
99.0 ± 39.6
103.8 ± 30.8
Total protein (g/dl)
7.2 ± 0.6
7.1 ± 0.7
Albumin (g/dl)
4.4 ± 0.4
4.3 ± 0.5
Total cholesterol (mg/dl)
164.7 ± 33.5
191.6 ± 39.4
HDL* (mg/dl)
54.3 ± 14.6
62.5 ± 16.2
ZTT* (unit)
9.6 ± 3.7
9.0 ± 3.5
CRP* (mg/dl)
0.6 ± 1.6
0.3 ± 1.1
Systolic blood pressure (mmHg)
118 ± 16 (n = 182)
114 ± 15
Diastolic blood pressure (mmHg)
75 ± 12 (n = 182)
72 ± 13
Numbers using certain medications (n)
143 (72.6%)
75 (63.6%)
Number on iron replacement (n)
9 (4.6%)
7 (5.9%)

*HDL: High density lipoprotein cholesterol, ZTT: Zinc sulfate turbidity test, C R P : C-reactive protein.

Ohwada et al. BMC Public Health 2006 6:85   doi:10.1186/1471-2458-6-85