Table 4.

Results of a multivariable stepwise linear regression analysis for predicting the changes of the plasma potassium concentration in calves of the study population during the first and subsequent 23 hours after the end of a hypertonic (8.4%) sodium bicarbonate infusion or the start of a sodium bicarbonate containing constant drip infusion

Order of Entry	Variable	Coefficient	±SE	P‐Value	ΔR 2	Model R 2
Period between T initial and T 60min a
	Constant	0.115	0.115	.320
1	Δblood pH	−3.383	0.396	<.001	0.485	0.485
2	ΔCreatinine	0.013	0.003	<.001	0.103	0.589
Period between T 60min and T 24h b
	Constant	0.104	0.155	.505
1	ΔCreatinine	0.004	0.001	<.001	0.405	0.405
2	Δblood pH	−3.174	0.889	.001	0.160	0.564
3	Δd‐lactate	−0.080	0.026	.003	0.051	0.615
4	ΔA tot	0.135	0.064	.038	0.025	0.641

^aThe variables Δblood pH, ΔpCO₂, Δd‐lactate, Δl‐lactate, ΔPhosphorus, ΔUrea, ΔCreatinine, and Δplasma volume were included in the model.

^bThe variables Δblood pH, ΔStrong ion gap, ΔA _tot, Δd‐lactate, Δl‐lactate, ΔCreatinine, ΔNa⁺, ΔEnophthalmos, and ΔSkin tent duration were included in the model.