Table 1.

Characteristics and clinical variables of subjects

Characteristic or clinical variable (normal range)	Value	Range	p value
	mean ± SD or n (%)
Age (years)	55.7 ± 13.5		p = 0.60
Male	56.5 ± 14.4	18–83
Female	54.7 ± 12.6	27–78
Body weight (kg)	61.4 ± 11.9		p < 0.001
Male	68.1 ± 11.2	49.2–93.4
Female	53.1 ± 6.1	41.5–66.6
Body height (cm)	161.4 ± 8.5		p < 0.001
Male	166.8 ± 6.4	150.5–182.0
Female	154.5 ± 5.3	144.0–165.0
Body mass index (kg/m2)	23.5 ± 3.6		p = 0.014
Male	24.5 ± 3.9	17.4–34.1
Female	22.3 ± 2.6	17.9–28.0
Kt/V	1.5 ± 0.2		p < 0.001
Male	1.3 ± 0.2	1.0–1.6
Female	1.6 ± 0.2	1.2–2.0
Hemoglobin (g/dl)	10.6 ± 1.2		p = 0.85
Male (12.3–18.3 g/dl)	10.6 ± 1.3	7.6–15.4
Female (11.3–15.3 g/dl)	10.5 ± 1.1	7.5–12.1
Calcium (8.1–10.4 mg/dl)	9.0 ± 0.8	7.0–11.2
Phosphate (2.7–4.5 mg/dl)	5.2 ± 1.7	2.7–13.3
Calcium-phosphate product	46.9 ± 15.2	24.7–97.9
Albumin (3.5–5.0 g/dl)	4.1 ± 0.3	3.4–4.8
Alkaline phosphatase (60–220 U/l)	185.4 ± 97.1	72–564
iPTH (12–72 pg/ml)	264.3 ± 263.7	3.0–1550
Duration of dialysis (month)	38.8 ± 39.8	6–202
Effective exercise time (minute/wk)	100.3 ± 206.9	0–1050
Had bone densitometry history	12 (19%)
Had fracture history after dialysis	3 (5%)
Had parathyroidectomy history	6 (10%)
Had renal transplantation history	3 (5%)

iPTH, intact parathyroid hormone