Table 1.

Demographic data.

	Age				Gender		Total
	Mean	Minimum	Maximum	Std. dev.	Girls	Boys
Propolis group	12.43	9.8	16.4	1.60	8 19%	13 32%	21 51%
Control group	12.53	9.7	18.2	2.75	9 22%	11 27%	20 49%
Total	12.37	9.7	18.2	2.28	17 41%	24 59%	41 100%