Table 4.

Probabilities based on Diagnostic Likelihood Ratios

		Prior Probability	DLR	Posterior Probability	Level
Adolescents	PTSD History	7.5%	2.01	14%	.54
	Girls	10.3%		19%
	Boys	5.6%		11%
	Young Adolescents	6.8%		13%
	Old Adolescents	8.9%		17%
	Trauma History	7.5%	2.31	16%	.33
	Girls	10.3%		20%
	Boys	5.6%		13%
	Young Adolescents	6.8%		14%
	Older Adolescents	8.9%		18%
	Social Support	7.5%	2.23	15%	.53
	Girls	10.3%		20%
	Boys	5.6%		12%
	Young Adolescents	6.8%		14%
	Older Adolescents	8.9%		18%
Adults	PTSD History	4.9%	2.41	11%	.53
	Young Adults	7.5%		16%
	Old Adults	3.9%		9%
	Trauma History	4.9%	1.40	7%	.35
	Younger Adults	7.5%		10%
	Older Adults	3.9%		5%
	Social Support	4.9%	1.99	9%	.46
	Younger Adults	7.5%		14%
	Older Adults	3.9%		8%
	Property Damage	4.9%	1.73	8%	.17
	Younger Adults	7.5%		12%
	Older Adults	3.9%		7%

Note: Prior Probability = Chance of having depression without knowledge of indicator; Posterior Probability = Chance of having depression given vulnerable score on that indicator. Level =Percentage of cases scoring at or above a given diagnostic threshold. Adolescents: PTSD History = NSA-R, Lifetime PTSD module; Young = Ages 12–14; Old = Ages 15–17; Trauma History = NSA-R, Trauma Module; Social Support = SSAS; Adult: PTSD History =NWS-PTSD Module; Young = Ages 18–16; Old = > 65 years old; Trauma=NWSEH-Trauma module; Social Support = MOS-Social Support Module; Property Damage = Property damage counting variable.