Table 1: Mean electrolyte concentrations in male and female subjects.

Table 4: Mean electrolyte concentrations in male and female subjects.

	Sex		Mean	T test	P value	Df(n-2)
Na⁺ _ serum	Male	24	134.63	-1.683	0.477	48
	Female	26	136.42
K⁺ _ serum	Male	24	4.21	0.682	0.251	48
	Female	26	4.07
Cl^- _ serum	Male	24	101.33	-0.512	0.897	48
	Female	26	101.81
Na⁺ _ Tear	Male	24	129.63	-1.547	0.069	48
	Female	26	132.38
K⁺ _ Tear	Male	24	21.80	1.769	0.060	48
	Female	26	21.04
Cl^-_ Tear	Male	24	121.54	-1.265	0.959	48
	Female	26	124.08

From the above table, there was a higher sodium and chloride concentration in tear and serum of female subjects when compared to male subjects while potassium was higher in tear and serum of male subjects when compared to females. However, these differences were not statistically significant.
Legend: Na⁺ = Sodium concentration; K⁺ = Potassium concentration; Cl^- = Chloride concentration.