Table 1. Demographic Information.

	Whole group (n = 362)	Active (n = 180)	Placebo (n = 182)
Age in months, mean (sd)	104.3 (10.1)	103.7 (10.0)	104.8 (10.1)
Sex, n (%)
Male	192 (53.0)	96 (53.3)	96 (52.7)
Female	170 (47.0)	84 (46.7)	86 (47.3)
Ethnicity, n (%)
White	330 (91.2)	163 (90.6)	167 (91.8)
Mixed	16 (4.4)	8 (4.4)	8 (4.4)
Other	7 (1.9)	3 (1.7)	4 (2.2)
Asian	2 (0.6)	2 (1.1)	0 (0.0)
Black	1 (0.3)	0 (0.0)	1 (0.5)
Unknown	6 (1.7)	4 (2.2)	2 (1.1)
Eligibility for free school meals, n (%)
Not eligible	289 (79.8)	144 (80.0)	145 (79.7)
Eligible	73 (20.2)	36 (20.0)	37 (20.3)