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. Author manuscript; available in PMC: 2014 Aug 1.
Published in final edited form as: J Am Acad Child Adolesc Psychiatry. 2013 Jun 25;52(8):815–830.e14. doi: 10.1016/j.jaac.2013.05.011

Table 4.

Associations (Odds Ratios) of Sociodemographics, Prior Mental Disorders, and Potentially Traumatic Experience (PTE) Types With DSM-IV/CIDI PTSD Onset in the National Comorbidity Survey Replication Adolescent Supplement (NCS-A)a (n=6,483)

Total Sample (n=6,483)
Trauma-Exposed Adolescents (n=3,898)
Model 1: Sociodemographics Model 2: Sociodemographics, Prior mental disorders Model 3: Sociodemographics Model 4: Sociodemographics, Worst event Model 5: Sociodemographics, Worst event, Prior PTEs Model 6: Sociodemographics, Worst event, Prior PTEs, Prior mental disorders
OR (95% CI) OR (95% CI) OR (95% CI) OR (95% CI) OR (95% CI) OR (95% CI)


Sex
 Females 3.5* (2.2–5.6) 3.6* (2.2–5.8) 3.6* (2.3–5.5) 2.8* (1.6–4.7) 2.8* (1.7–4.6) 2.5* (1.4–4.3)
 Males 1.0 [Reference] 1.0 [Reference] 1.0 [Reference] 1.0 [Reference] 1.0 [Reference] 1.0 [Reference]
  χ21 27.7* 26.5* 34.1* 14.3* 16.0* 10.7*
Race/ethnicity
 Hispanic 0.6 (0.4–1.1) 0.7 (0.4–1.1) 0.5* (0.3–0.9) 0.6 (0.3–1.1) 0.6 (0.3–1.2) 0.7 (0.4–1.2)
 Non-Hispanic Black 0.7 (0.3–1.5) 0.8 (0.4–1.6) 0.7 (0.4–1.4) 0.7 (0.3–1.5) 0.7 (0.3–1.6) 0.7 (0.3–1.4)
 Other 1.0 (0.5–2.2) 0.8 (0.4–2.0) 0.9 (0.5–1.9) 0.9 (0.3–2.6) 0.9 (0.3–2.5) 0.8 (0.3–2.3)
 Non-Hispanic White 1.0 [Reference] 1.0 [Reference] 1.0 [Reference] 1.0 [Reference] 1.0 [Reference] 1.0 [Reference]
  χ23 3.8 2.5 5.1 2.9 2.5 2.5
Urbanicity
 Metro/other urban 1.1 (0.7–1.7) 1.1 (0.7–1.7) 1.3 (0.9–1.8) 1.1 (0.7–1.7) 1.2 (0.8–1.8) 1.4 (0.9–2.0)
 Rural 1.0 [Reference] 1.0 [Reference] 1.0 [Reference] 1.0 [Reference] 1.0 [Reference] 1.0 [Reference]
  χ21 0.2 0.2 1.7 0.3 1.1 2.5
Biological parents in home
 ≤1 2.0* (1.3–3.0) 1.8* (1.2–2.6) 1.8* (1.2–2.7) 1.8* (1.1–2.8) 1.5 (1.0–2.4) 1.5 (0.9–2.3)
 2 1.0 [Reference] 1.0 [Reference] 1.0 [Reference] 1.0 [Reference] 1.0 [Reference] 1.0 [Reference]
  χ21 10.9* 9.2* 8.2* 6.5* 3.3 2.9
Prior mental disordersc
 Fear 1.5* (1.1–1.9) 1.7* (1.4–2.2)
 Distress 1.8* (1.4–2.4) 1.8* (1.3–2.4)
 Behavior 1.1 (0.8–1.5) 0.8 (0.5–1.2)
 Substance 1.5* (1.0–2.2) 1.7 (0.9–3.2)
 Bipolar 2.0* (1.1–3.5) 1.6 (0.7–3.8)
  χ25 152.3* 51.8*
Worst Evente
  χ219 499.0* 557.1* 602.1*
Prior PTEsf
  χ219 279.7* 93.9*

Note: PTSD=posttraumatic stress disorder.

a

Models were estimated using discrete-time survival analysis with person-years as the unit of analysis.

c

Variables represent counts of fear, distress, behavior, substance, and bipolar disorders with onsets prior to occurrence of respondents’ self-reported worst PTE.

e

19 dummy variables included to indicate the respondents’ self-reported worst event and any other PTEs occurring in the same year as the worst.

f

Variables represent counts of PTEs occurring prior to respondents’ self-reported worst PTE.

*

Significant at the .05 level, 2-sided test