Table 4.

Multiple regression analysis results of CMB (mg) taken as dependent variable

	Model 1 (R2 = 43.5%, P = 0.008)		Model 2 (R2 = 70.0%, P = 0.007)
Predictor variable	Standard coefficient	P	Standard coefficient	P
Diff(iCa)	0.645	0.098	0.96	0.017
ΔDiff(iCa)	1.14	0.007	1.35	0.003
Diff(pH)	Not included in model		−0.53	0.291
ΔDiff(pH)	Not included in model		−1.33	0.047
Diff(HCO3)	Not included in model		−1.82	0.019
ΔDiff(HCO3)	Not included in model		1.03	0.171

P < 0.05 are given in bold.