Table 2. Comparisons of clinical and laboratory data between patients with and without anemia.

Variables	Without anemia (n = 1,211)	Anemia (n = 987)	P value
Anthropometric data
Age, yr	52 ± 12	56 ± 12	< 0.001
BMI, kg/m2	24.9 ± 3.5	24.1 ± 3.3	< 0.001
SBP, mm Hg	127 ± 15	129 ± 18	< 0.001
DBP, mm Hg	79 ± 11	76 ± 11	< 0.001
Pulse pressure, mm Hg	49 ± 11	53 ± 14	< 0.001
Laboratory data
WBC, 106/L	6,685 ± 1,919	6,514 ± 1,911	0.037
Hemoglobin, g/dL	14.30 ± 1.32	11.10 ± 1.12	< 0.001
Platelet, 109/L	230 ± 57	231 ± 68	0.570
GFR, mL/min/1.73 m2	63.9 ± 29.4	33.8 ± 22.0	< 0.001
Albumin, g/dL	4.30 ± 0.35	4.00 ± 0.46	< 0.001
CRP, mg/L	1.77 ± 4.61	2.40 ± 6.11	0.009
TSAT, %	33.6 ± 12.4	29.3 ± 11.6	< 0.001
Ferritin, ng/mL	126.2 ± 101.7	153.1 ± 171.0	< 0.001
Total cholesterol, mg/dL	178 ± 38	169 ± 41	< 0.001
Triglyceride, mg/dL	160 ± 102	154 ± 94	0.150
Calcium, mg/dL	9.30 ± 0.42	8.90 ± 0.59	< 0.001
Phosphorus, mg/dL	3.50 ± 0.52	3.90 ± 0.74	< 0.001
24-hour urine protein, mg/day	897 ± 1,490	1,917 ± 2,626	< 0.001

BMI = body mass index, SBP = systolic blood pressure, DBP = diastolic blood pressure, WBC = white blood cell, GFR = glomerular filtration rate, CRP = C-reactive protein, TSAT = transferrin saturation.