Table 2.

Characteristics^* of the enrolled children

	Salivarius M18-treated group (n=38)	Untreated group (n=38)
Males, n	25	21
Age° of males	11.2±3.2	12.1±2.9
Females, n	13	17
Age° of females	11.5±3.6	11.8±3.8

Notes:

^*Nonsignificant differences between groups; °age expressed in years ± standard deviation.

Abbreviation: Salivarius M18, Streptococcus salivarius M18.