Table 3.

Adjusted associations between demographic and clinical patient characteristics and achieving the KDOQI recommended serum hemoglobin level of 11 g/dl or greater.

Patient Characteristics	Adjusted Prevalence Ratio * (95% CI)	p-value
Gender
Female	Reference
Male	0.98 (0.9, 1.1)	0.8
Race
White	Reference
Black	1.0 (0.9, 1.1)	0.8
Other	1.1 (0.9, 1.2)	0.5
spKt/V
<1.2	Reference
≥1.2	1.05 (0.9, 1.2)	0.5
iPTH quintile**
1	1.0 (0.9, 1.2)	0.9
2	Reference	-
3	0.95 (0.8, 1.1)	0.5
4	0.99 (0.8, 1.2)	0.9
5	0.97 (0.8, 1.1)	0.7
Albumin, g/dl
<3.2(BCP) or <3.5(BCG)	Reference
≥3.2(BCP) or ≥3.5(BCG)	1.4 (1.2, 1.6)	<0.001
nPCR
<1.0(≥12yrs) or <1.3(<12yrs)	Reference
≥1.0(≥12yrs) or ≥1.3(<12yrs)	1.0 (0.9, 1.1)	0.4
Ca × P
<55(≥12yrs)/<65(<12yrs)	Reference
≥55(≥12yrs)/ ≥65(<12yrs)	1.1 (1.0, 1.2)	0.2
Erythropoietin α quintile***
1
2	Reference
3	1.0 (0.9, 1.2)	0.6
4	0.8 (0.7, 0.9)	0.001
5	0.8 (0.7, 0.9)	<0.001
	0.6 (0.5, 0.7)	<0.001

^*Adjusted for all covariates in table, age, dialysis vintage, and type of vascular access

^**The average serum values defining quintiles across all 5 imputed datasets: quintile 1 (<103 pg/ml), quintile 2 (>103–224 pg/ml), quintile 3 (>224–416 pg/ml), quintile 4 (>416–823 pg/ml) quintile 5 (>823 pg/ml)

^***Erythropoietin alpha quintile 1 (<128 units/kg/week), quintile 2 (>128–218 units/kg/week), quintile 3 (>218–332 units/kg/week), quintile 4 (>332–500 units/kg/week), quintile 5 (>500 units/kg/week)

Conversion factors for units: serum hemoglobin in g/dl to g/L, ×10; serum albumin in g/dl to g/L, ×10; serum calcium in mg/dl to mmol/L, ×0.2495; serum phosphorus in mg/dl to mmol/L, ×0.3229. No conversion factor necessary for intact PTH in pg/ml and ng/ml.

Abbreviations:

Abbreviations: BCG, bromocresol green; BCP, bromocresol purple; spKt/V, single-pool Kt/V.