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. 2018 Jul 5;5(3):e10078. doi: 10.2196/10078

Table 1.

Descriptive characteristics of all survey participants (N=587).

Characteristic Value
Demographics and Military History


Age in years, mean (SD) 40.0 (12.0)

Male, n (%) 474 (80.8)

Racial or ethnic minority, n (%) 110 (18.9)
Branch of military servicea, n (%)

Army 326 (55.5)

Navy 110 (18.7)

Air Force 109 (18.6)

Marine Corps 75 (12.8)

Coast Guard 11 (1.9)

Other 2 (0.3)
Service erab, n (%)


September 2001-present (includes Iraq and Afghanistan conflicts) 587 (100)

August 1990-August 2001 (includes Gulf War) 213 (36.3)

May 1975-July 1990 112 (19.1)

August 1964-April 1975 (includes Vietnam era) 29 (4.9)

Deployed to Iraq or Afghanistan 426 (72.7)
Education, n (%)


High school diploma or less 34 (5.8)

Some college, or vocational degree 250 (42.6)

College degree or greater 303 (51.6)
Marital status, n (%)


Single, never married 112 (19.1)

Divorced, separated, or widowed 111 (18.9)

Married or living as married 363 (62.0)
Facebook use frequency, n (%)


Every few weeks or less often 14 (2.4)

Weekly or a few times a week 47 (8.0)

Daily or more often 524 (89.6)
Clinical characteristics, n (%)


Positive depression screenerc 164 (28.0)

Positive posttraumatic stress disorder screenerd 266 (45.5)

Positive alcohol misuse screenere 243 (41.6)

Positive suicidal ideation screenerf 132 (22.6)
Veterans Affairs Health Service Use, n (%)


Not enrolled 193 (32.9)

Not used in last year 322 (54.9)

aPercentages do not add up to 100% because some respondents (45/587, 7.7%) indicated multiple branches.

bPercentages do not add up to 100% because some respondents indicated multiple service eras; 60.5% (355) served only during the current era, September 2001 to present.

cPatient Health Questionnaire-2 (PHQ-2) score ≥ 3. Due to missing item response, the total number of respondents for this scale was 586.

dPrimary Care posttraumatic stress disorder (PTSD) Screen for DSM-5 (PC-PTSD-5) score ≥ 3. Due to missing item response, the total number of respondents for this scale was 502.

eAlcohol Use Disorders Identification Test Alcohol Consumption Questions (AUDIT-C) score ≥ 4 (men) or ≥ 3 (women). Due to missing item response, the total number of respondents for this scale was 477.

fDepressive Symptom Inventory Suicidality Subscale (DSI-SS) score ≥ 2. Due to missing item response, the total number of respondents for this scale was 585.