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Table 1 Demographic and military characteristics of the sample by past 12-month depression and PTSD

From: Are personnel with a past history of mental disorders disproportionately vulnerable to the effects of deployment-related trauma? A cross-sectional study of Canadian military personnel

Variable

Total sample weighted N, %, (95% CI)

Past 12-month depression weighted N, %, (95% CI)

Past 12-month PTSD weighted N, %, (95% CI)

Total

 Total

11,860, 100%

1100, 9.3% (7.8–10.8)

840, 7.1% (5.8–8.4)

Age‡

 18–34 years

7660, 64.6% (62.0–67.2)

740, 6.2% (5.0–7.5)

520, 4.4% (3.4–5.5)

 35–44 years

2580, 21.8% (19.5–24.0)

200, 1.7% (1.1–2.3)

240, 2.0% (1.3–2.8)

 45–60 years

1620, 13.7% (12.0–15.4)

160, 1.3% (0.8–1.9)

80, 0.7% (0.3–1.1)

Sex†‡

 Male

10,180, 85.8% (84.0–87.7)

920, 7.8% (6.3–9.2)

680, 5.8% (4.6–7.0)

 Female

1680, 14.2% (12.3–16.0)

180, 1.5% (0.8–2.2)

160, 1.4% (0.8–1.9)

Language‡

 English

9220, 77.7% (75.5–80.0)

880, 7.4% (6.1–8.7)

740, 6.3% (5.1–7.5)

 French

2640, 22.3% (20.0–24.5)

220, 1.9% (1.1–2.6)

100, 0.9% (0.4–1.3)

Marital status†‡

 Married or common law

7760, 65.4% (63.1–67.8)

620, 5.2% (4.1–6.4)

460, 3.9% (2.9–4.9)

 Separated, divorced, or widowed

800, 6.7% (5.4–8.1)

100, 0.8% (0.3–1.4)

80, 0.7% (0.3–1.1)

 Never married

3300, 27.8% (25.7–30.0)

380, 3.2% (2.3–4.1)

300, 2.6% (1.7–3.4)

Education†

 High school or less

3960, 33.6% (31.2–36.1)

360, 3.1% (2.2–4.0)

280, 2.4% (1.6–3.2)

 Some postsecondary

980, 8.3% (6.9–9.7)

140, 1.2% (0.6–1.7)

60, 0.5% (0.2–0.9)

 Post-secondary graduate

6860, 58.2% (55.7–60.8)

620, 5.3% (4.1–6.4)

500, 4.3% (3.3–5.3)

Household income†‡

  < =$60,000

1320, 11.1% (9.7–12.6)

140, 1.2% (0.7–1.7)

120, 1.0% (0.5–1.5)

 $60,000–79,999

2920, 24.6% (22.2–27.0)

400, 3.4% (2.4–4.3)

320, 2.7% (1.8–3.6)

  > =$80,000

7620, 64.2% (61.8–66.7)

580, 4.9% (3.7–6.0)

400, 3.4% (2.5–4.3)

Service‡

 Army

8980, 75.7% (73.6–77.8)

860, 7.3% (5.9–8.6)

680, 5.8% (4.6–7.0)

 Navy

820, 6.9% (5.6–8.2)

80, 0.7% (0.3–1.0)

20, 0.2% (0.0–0.3)

 Air Force

2060, 17.4% (15.4–19.4)

160, 1.3% (0.7–2.0)

160, 1.4% (0.8–2.0)

Component

 Regular Force

9480, 79.9% (78.8–81.0)

900, 7.6% (6.1–9.1)

680, 5.8% (4.6–7.0)

 Reserve Force

2380, 20.1% (19.0–21.2)

200, 1.7% (1.2–2.1)

160, 1.4% (1.0–1.8)

Rank†‡

 Junior NCM

8000, 67.5% (65.5–69.4)

840, 7.1% (5.7–8.4)

660, 5.6% (4.4–6.8)

 Senior NCM

1560, 13.2% (11.7–14.6)

120, 1.0% (0.5–1.5)

80, 0.7% (0.3–1.0)

 Officer

2300, 19.4% (17.9–20.9)

160, 1.3% (0.9–1.8)

100, 0.9% (0.4–1.3)

Number deployment-related traumatic events†‡

 0

1500, 12.8% (11.0–14.6)

80, 0.7% (0.3–1.1)

40, 0.3% (0.1–0.6)

 1

2020, 17.2% (15.4–19.0)

140, 1.2% (0.6–1.8)

80, 0.7% (0.3–1.1)

 2

2060, 17.5% (15.6–19.5)

120, 1.0% (0.4–1.6)

40, 0.3% (0.0–0.6)

 3

1800, 15.3% (13.4–17.2)

100, 0.9% (0.4–1.3)

60, 0.5% (0.1–0.9)

 4

1680, 14.3% (12.5–16.1)

120, 1.0% (0.5–1.5)

120, 1.0% (0.5–1.6)

 5

1260, 10.7% (9.2–12.3)

180, 1.5% (0.9–2.2)

1240, 10.7% (9.1–12.2)

 6

800, 6.8% (5.6–8.0)

160, 1.4% (0.8–2.0)

120, 1.0% (0.5–1.6)

 7

460, 3.9% (2.9–4.9)

120, 1.0% (0.5–1.5)

140, 1.2% (0.6–1.8)

 8

180, 1.5% (0.9–2.1)

80, 0.7% (0.3–1.1)

60, 0.5% (0.2–0.8)

Mean number of traumatic events

 Mean

2.89; SD = 2.01

4.04; SD = 2.37

4.65; SD = 2.17

Time since return from Afghanistan‡

  < 1 year

440, 3.7% (2.7–4.7)

40, 0.3% (0.1–0.6)

20, 0.2% (0.0–0.4)

 1–2 years

580, 4.9% (3.6–6.1)

40, 0.3% (0.1–0.6)

40, 0.3% (0.1–0.6)

  > 2 years

10,820, 91.2% (89.7–92.8)

1040, 8.8% (7.3–10.2)

800, 6.8% (5.5–8.1)

Number of types of childhood victimization†‡

 0

6240, 52.6% (49.8–55.4)

400, 3.4% (2.4–4.4)

320, 2.7% (1.9–3.6)

 1

4140, 34.9% (32.4–37.5)

480, 4.0% (3.1–5.0)

320, 2.7% (1.9–3.6)

 2

1300, 11.0% (9.3–12.6)

200, 1.7% (1.1–2.3)

160, 1.4% (0.7–2.0)

 3

180, 1.5% (0.8–2.2)

40, 0.3% (0.1–0.6)

40, 0.3% (0.1–0.6)

  1. PTSD post-traumatic stress disorder, CI confidence interval, NCM non-commissioned member, SD standard deviation
  2. † Significant at p-value < 0.05 when using a Wald chi-square test comparing variable categories for those with past 12-month depression
  3. ‡ Significant at p-value < 0.05 when using a Wald chi-square test comparing variable categories for those with past 12-month PTSD