TABLE 1.

Sample characteristics

	N			Average age (years)
Age class	Cross‐sectional cohort	Longitudinal cohort	Entire sample	Cross‐sectional cohort	Longitudinal cohort	Entire sample
8–16 years	8	10	18	10.58	11.73	11.27
> 16 Years	10	20	30	22.05	23.04	22.88