Table 4.

Full model and final model for hemoglobin variation

Parameter	Model with All Parameters			Final Model
	Coef.	95% CI	P	Coef.	95% CI	P
Epo dose (per 10,000 units/month)	−0.18	−0.28 to −0.09	<0.0001	−0.18	−0.26 to −0.10	<0.0001
Epo dose × time	0.05	0.01 to 0.10	0.01	0.04	0.01 to 0.07	<0.01
Serum albumin (g/dl)	0.78	0.15 to 1.41	0.02	0.73	0.18 to 1.28	0.01
Albumin × time	0.41	0.03 to 0.79	0.03	0.49	0.14 to 0.84	<0.01
WBC count (n/1000/ml)	0.12	0.01 to 0.23	0.03
Iron dose (per 100 mg/month)	−0.04	−0.13 to 0.04	0.3
Iron dose × time	0	−0.00 to 0.00	0.1
Post dialysis weight (kg)	−0.01	−0.03 to 0.00	0.1
WBC count × time	−0.03	−0.08 to 0.02	0.2
Plasma malonaldehyde (mmol/L)	0.02	−0.09 to 0.13	0.7
Malonaldehyde × time	0.01	−0.04 to 0.07	0.6
log Plasma MCP1 (ng/ml)	0.07	−0.31 to 0.45	0.7
log Plasma MCP1 × time	−0.14	−0.32 to 0.05	0.2
Serum iron	0	−0.00 to 0.00	0.5
Serum iron × time	0	−0.00 to 0.00	0.7
Log serum ferritin	−0.31	−0.69 to 0.06	0.1
Log ferritin × time	0.1	−0.02 to 0.22	0.1
Total iron binding capacity	0	−0.01 to 0.01	0.9
Total iron binding capacity × time	0	−0.00 to 0.00	0.9
Constant	14.82	11.40 to 18.23	<0.0001	12.6	12.2 to 13.0	<0.0001
Random Effects
SD Intercept	0.6	1.53
SD Time	1.63	0.59
Corr (intercept, time)	−0.49	−0.46
SD Residual	0.76	0.84
LL	−442	−519.8

Albumin is centered at 4 g/dl and white blood cell (WBC) count at 4000/μl.