Table 1.

Mean age values and gender distributions in the three study groups

	Age				Gender
	Steroid	Ozone	Combined		Steroid		Ozone		Combined
					Male	Female	Male	Female	Male	Female
Mean ± SD	56.2 ± 5.5	53.4 ± 4.2	54.4 ± 4.2	Number (%)	9 (40.9%)	13 (60.1%)	9 (40.9%)	13 (60.1%)	9 (40.9%)	13 (60.1%)
F value		2.028		X2			0
P (ANOVA)		0.140 ns		P value (chi square)			1 ns

Significance level p < 0.05; *= significant; ns = non-significant