Table 10: Association of lifetime sexual assault with past-year PTSD among women*†
VariableWeighted no.‡ (%) of participants (95% CI)§
n in final model = 8700
Unadjusted OR
 (95% CI)
Adjusted OR¶
 (95% CI)
Age group, yr
    < 30 200 (7.7) (3.5-11.9)ReferenceReference
    30-39320 (11.2) (7.2-15.1)1.55 (0.73-3.29)1.48 (0.61-3.57)
    ≥ 40240 (7.4) (4.5-10.3)0.93 (0.44-1.99)0.62 (0.24-1.59)
Ethnicity
    White680 (8.8) (6.5-11.0)Reference-**
    Other100 (10.6) (4.6-16.6)1.12 (0.52-2.41)-**
Marital status
    Single (never married)280 (12.5) (7.4-17.6)1.92 (1.06-3.47)1.75 (0.84-3.64)
    Married/common-law360 (6.7) (4.5-8.8)ReferenceReference
    Widowed/divorced/separated140 (13.5) (5.8-21.1)1.99 (0.84-4.68)2.58 (0.91-7.25)
Region
    Atlantic100 (6.3) (3.1-9.4)0.54 (0.25-1.16)0.63 (0.26-1.57)
    Quebec60 (5.1) (1.4-8.8)0.47 (0.16-1.38)0.34 (0.10-1.15)
    Central/Ontario380 (10.1) (6.4-13.7)ReferenceReference
    Western240 (11.2) (6.6-15.8)1.08 (0.57-2.04)0.88 (0.41-1.87)
Rank category
Junior noncommissioned member460 (10.2) (6.7-13.7)ReferenceReference
 Senior noncommissioned member180 (9.1) (5.3-12.9)0.92 (0.5-1.72)0.96 (0.44-2.13)
    Officer120 (5.4) (3.0-7.9)0.47 (0.26-0.95)0.67 (0.29-1.55)
Element
    Army420 (10.7) (7.2-14.1)ReferenceReference
    Navy100 (6.6) (2.3-10.8)0.64 (0.29-1.44)0.84 (0.31-2.27)
    Air Force240 (7.4) (4.2-10.5)0.71 (0.38-1.32)0.84 (0.40-1.77)
Ever deployed
    No300 (6.8) (3.8-9.9)Reference
    Yes460 (10.6) (7.7-13.6)1.64 (0.92-2.94)1.10 (0.57-2.13)
Lifetime sexual trauma category
    No lifetime sexual trauma200 (3.8) (2.0-5.5)ReferenceReference
Non-military-related sexual assault only240 (11.7) (6.4-16.9)3.51 (1.71-7.19)2.14 (0.94-4.86)
Military-related sexual assault (± non-military-related sexual assault)320 (23.5) (15.9-31.2)7.80 (4.12-14.94)4.06 (1.62-10.21)
Count of types of lifetime nonsexual trauma, mean (95% CI) 
    All respondents2.95 (2.76-3.15)1.39 (1.28-1.52)1.31 (1.17-1.47)
Respondents without any lifetime PTSD5.98 (5.11-6.84)
Respondents with any lifetime PTSD2.66 (2.48-2.85)

Note: CI = confidence interval, OR = odds ratio, PTSD = posttraumatic stress disorder.

*Binary logistic regression.

†Cases representing 2.5% of the population were excluded from the final model because of missing values.

‡Weighted to the entire Canadian Regular Force in service in September 2012. To protect the identity of respondents, Statistics Canada permits the release only of weighted cell counts, which must be rounded to the nearest 20. We calculated prevalence rates using these rounded cell counts.

§Except where noted otherwise.

¶Adjusted for age group, marital status, region, rank category, element, deployment history and number of lifetime nonsexual traumatic events.

**Not included in final model owing to the lack of an unadjusted association with the outcome.