Table 3. Regression Models for the Relationships Between Suicidal Behavior and Total Cortisol Output With and Without Controlling for Demographics and Hour of the Day When the TSST was Conducted.

	Total Cortisol Outputa
	Unstandb β	95% CI	t	p	Unstandb β	95% CI	t	p
SA	−0.47	−0.83, −0.11	−2.58	0.01	−0.47	−0.89, −0.05	−2.2	0.03
SRB	−0.13	−0.49, 0.23	−0.70	0.49	−0.14	−0.58, 0.29	−0.65	0.52
NS	−0.15	−0.32, 0.03	−1.61	0.11	−0.11	−0.42, 0.20	−0.69	0.49
Age					0.002	−0.02, 0.02	0.27	0.79
Sex, femalec					−0.22	−0.40, −0.04	−2.43	0.02
Race, Caucasianc					0.21	0.04, 0.38	2.45	0.02
Ethnicity, Hispanicc					0.18	−0.23, 0.59	0.88	0.38
Site, Pittsburghc					−0.21	−0.49, 0.08	−1.4	0.16
SESd					0.001	−0.003, 0.005	0.51	0.61
Time of day					−2.53	−4.03, −1.03	−3.34	0.001

Abbreviations: NS, non-suicidal; SA, suicide attempt; SRB, suicide-related behavior.

^aTotal cortisol output=ln(AUC_G).

^bUnstandardized coefficients.

^cCompared with reference categories males, non-Caucasians, non-Hispanic, and NY.

^dSES, socio-economic status. There were 208 high-risk offspring from 134 families with an average number of 1.6 (SD=0.7, range 1–5) offspring per family participating in the study. Regression models take into account the correlation between subjects.

^dBold values indicate p<0.05.