Table 1.

Baseline characteristics of hemodialysis (HD) patients with and without obesity

Variable	Non-obese	Obese	P value
Subject	567 (77.4)	166 (22.6)
Age (yr)	52 ± 13.4	56 ± 10.7	0.155*
Duration of HD (mo)	60 (16–228)	56 (18–204)	0.568†
Sex
Female	204 (36.0)	84 (50.6)	0.001‡
Male	363 (64.0)	82 (49.4 )
Diabetes mellitus
No	440 (77.6)	127 (76.5)	0.935‡
Yes	127 (22.4)	39 (23.5)
Hypertension
No	298 (52.6)	79 (47.6)	0.357‡
Yes	269 (47.4)	87 (52.4)
Serum creatinine (mg/dL)	7.2 (2–17)	7.6 (3–14.8)	0.275†
URR (%)	58 (25–87)	60 (27–82)	0.251†
Serum albumin (g/dL)	4 ± 0.64	4.2 ± 0.47	0.279*
Serum Ca (mg/dL)	9.3 ± 1.5	9.0 ± 1.3	0.492*
Serum phosphorus (mg/dL)	4.8 (2.0–9.3)	5.4 (2.8–10.5)	0.005†
iPTH (pg/mL)	299.0 (4.7–3,576.0)	281.0 (16.0–1,654.0)	0.888†

Data are presented as number (%), mean ± standard deviation, or median (range).

iPTH, intact parathyroid hormone; URR, urea reduction ratio.

Analyzed by

^*Student t test,

^†Mann–Whitney U test,

^‡chi-square test.