. 2019 Oct 21;180(1):17–25. doi: 10.1001/jamainternmed.2019.4446

Table 2. Primary Outcomes Between Groups^a.

Study Population	Incidence of Delirium, No./Total (%)		RR (95% CI)	P Value
Study Population	t-HELP	Usual Care	RR (95% CI)	P Value
Intention to treat	4/152 (2.6)	25/129 (19.4)	0.14 (0.05-0.38)	<.001
			0.06 (0.02-0.23)^b
			0.07 (0.02-0.26)^c
Per protocol	4/132 (3.0)	25/115 (21.7)	0.14 (0.05-0.39)	<.001
			0.07 (0.02-0.28)^b
			0.07 (0.02-0.28)^c
Sensitivity analysis^d	12/152 (7.9)	25/129 (19.4)	0.41 (0.21-0.78)	.006
			0.32 (0.14-0.73)^b	.007
			0.16 (0.06-0.44)^c	<.001

Abbreviations: RR, relative risk; t-HELP, Tailored, Family-Involved Hospital Elder Life Program.

^{^a}

The intention-to-treat group included all participants randomized without exclusions, analyzed according to their original treatment group assignment. The per-protocol group excluded participants who withdrew or were lost to follow-up.

^{^b}

Adjusted for age, sex, and cluster (nursing unit); treated as random-effect factor in the models.

^{^c}

Adjusted for age, sex, and type of surgical procedure; treated as random-effect factor in the models.

^{^d}

Recoding missing values owing to study withdrawals as delirium positive for the t-HELP group or delirium negative for the usual care group.

Table 2. Primary Outcomes Between Groupsa.

Table 2. Primary Outcomes Between Groups^a.