Table 3. Coefficients of correlation between the clinical and laboratory parameters.

Blood values	Physical activity		Dehydration
	Pearson, r	p value	Pearson, r	p value
Na+ (mmol/L)	0.066	0.380	−0.052	0.491
K+ (mmol/L)	0.338	< 0.001	0.519	< 0.001
Cl− (mmol/L)	0.223	0.003	0.093	0.225
tCO2 (mmol/L)	−0.341	< 0.001	−0.285	< 0.001
BUN (mg/dL)	0.503	< 0.001	0.571	< 0.001
Glu (mg/dL)	− 0.075	0.317	−0.099	0.187
Hct (%)	0.340	< 0.001	0.442	< 0.001
pH	−0.434	< 0.001	−0.438	< 0.001
pCO2 (mmHg)	−0.091	0.223	0.115	0.124
HCO3− (mmol/L)	−0.340	< 0.001	−0.291	< 0.001
BE (mmol/L)	−0.380	< 0.001	−0.343	< 0.001
AnGap (mmol/L)	0.355	< 0.001	0.342	< 0.001
Hb (g/dL)	0.355	< 0.001	0.425	< 0.001

Physical activity was classified into bright, dull, dummy, and coma. Dehydration scores were classified according to the percentage of dehydration as score 1 in cases of less than 6%, score 2 in cases of less than 8%, score 3 in cases of less than 10%, and score 4 in cases of 10% or more. Pearson's correlations were used to evaluate the relationships. Correlations were defined as weakly positive (r = 0.1 to 0.3), moderately positive (r = 0.3 to 0.7), strongly positive (r = 0.7 to 1.0), weakly negative (r = −0.1 to −0.3), moderately negative (r = −0.3 to −0.7), or strongly negative (r = −0.7 to −1.0).

BE, base excess of the extracellular fluid; tCO₂, total carbon dioxide; HCO₃⁻, bicarbonate; Na⁺, sodium; Glu, glucose; pCO₂, partial pressure of carbon dioxide; Cl⁻, chloride; K⁺, potassium; Hct, hematocrit; Hb, hemoglobin; AnGap, anion gap; BUN, blood urea nitrogen.