Table 2.

Rates of Psychiatric Disorders at Age 16 by Intent to Treat Groupings and Institutional Care History Groupings

Disorder category	Care as usual (n = 51)	Foster care (n = 52)	Difference [95% CI]	p value	Ever placed in institution (n = 103)	Never placed in institution (n = 47)	Difference [95% CI]	p value
Any disorder	61%	39%	.23 [.04, .42]	.020	50%	15%	.35 [.20, .49]	<.001
Any internalizing	18%	4%	.14 [.02, .25]	.021	11%	4%	.07 [−.02, .15]	.129
Any externalizing	42%	28%	.15 [−.04, .33]	.126	35%	11%	.24 [.11, .37]	<.001
ADHD	24%	21%	.02 [−.14, .18]	.780	22%	0%	.22 [.14, .30]	<.001
SUD	2%	6%	−.04 [−.11, .04]	.322	4%	0%	.04 [.00, .08]	.042

Note. Psychiatric disorder %. ADHD = attention-deficit/hyperactivity disorder; SUD = substance use disorder. Age at assessment and sex were included as covariates for presentation of group differences and 95% CI. Tests comparing groups with 0 cases involved quasi-complete separation and the validity of the statistics are uncertain. Values are provided for illustrative purposes. p values in boldface are statistically significant after applying a Benjamini-Hochberg adjustment with a 10% false discovery rate to avoid Type I errors. The correction was calculated separately for the five tests between care as usual and foster care groups and the five tests between ever placed in institution and never placed in institution.