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. Author manuscript; available in PMC: 2013 Apr 10.
Published in final edited form as: Gen Hosp Psychiatry. 2006 May-Jun;28(3):213–222. doi: 10.1016/j.genhosppsych.2006.02.002

Table 2.

Rates of current 9/11-related probable PTSD stratified by type of exposure to the WTC attacks

Exposure variable PTSD+
 χ2 (df = 1) P Tests
n % Crude OR (95% CI)a Adjusted OR (95% CI)b
Proximity to WTC during 9/11 attacks
    In the WTC or lower Manhattan (n = 35) 6 17.1 2.0 (0.7–6.4) 3.5 (0.9–14.0)
    In New York City (n =692) 73 10.6 1.1c .30c 1.2 (0.5–2.5) 1.5 (0.6–3.8)
    In the New York City area (n = 114) 8 7.0 0.7 (0.3–2.1) 1.1 (0.4–3.5)
    Outside the New York City area (n = 87) 8 9.2 1.0 (–) 1.0 (–)
Loss in 9/11 and the Crash of Flight 587
    Know someone killed by the WTC disaster
        Yes (n =252) 43 17.1 17.6 < .0001 2.5 (1.6–3.8) 2.6 (1.6–4.4)
        No (n = 677) 52 7.7 1.0 (–) 1.0 (–)
a

Due to missing data, n =929–930.

b

OR is adjusted for sex; marital status (married/cohabiting vs. other); education (high school diploma: yes vs. no); race/ethnicity (Hispanic vs. black, non-Hispanic vs. white/other, non-Hispanic); born in the US (yes vs. no); family psychiatric history (yes vs. no); and exposure to at least one traumatic event prior to 9/11 (yes vs. no). Due to missing data, n =729–730.

c

Mantel–Haenszel test of linear trend.