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Randomized Controlled Trial
. 2020 Oct 1;3(10):e2022532.
doi: 10.1001/jamanetworkopen.2020.22532.

Effect of the Wingman-Connect Upstream Suicide Prevention Program for Air Force Personnel in Training: A Cluster Randomized Clinical Trial

Peter A Wyman  1 , Anthony R Pisani  1 , C Hendricks Brown  2 , Bryan Yates  1 , Lacy Morgan-DeVelder  1 , Karen Schmeelk-Cone  1 , Robert D Gibbons  3   4 , Eric D Caine  1 , Mariya Petrova  1   5 , Tracy Neal-Walden  6   7 , David J Linkh  6 , Alicia Matteson  8 , Jordan Simonson  8 , Steven E Pflanz  6   9
Affiliations
Randomized Controlled Trial

Effect of the Wingman-Connect Upstream Suicide Prevention Program for Air Force Personnel in Training: A Cluster Randomized Clinical Trial

Peter A Wyman et al. JAMA Netw Open. .

Abstract

Importance: Suicide has been a leading manner of death for US Air Force personnel in recent years. Universal prevention programs that reduce suicidal thoughts and behaviors in military populations have not been identified.

Objectives: To determine whether the Wingman-Connect program for Airmen-in-training reduces suicidal ideation, depression, and occupational problems compared with a stress management program and to test the underlying network health model positing that cohesive, healthy units are protective against suicidal ideation.

Design, setting, and participants: This cluster randomized clinical trial was conducted from October 2017 to October 2019 and compared classes of personnel followed up for 6 months. The setting was a US Air Force technical training school, with participants studied to their first base assignment, whether US or international. Participants in 216 classes were randomized, with an 84% retention rate. Data analysis was performed from November 2019 to May 2020.

Interventions: The Wingman-Connect program used group skill building for cohesion, shared purpose, and managing career and personal stressors (3 blocks of 2 hours each). Stress management training covered cognitive and behavioral strategies (2 hours). Both conditions had a 1-hour booster session, plus text messages.

Main outcomes and measures: The primary outcomes were scores on the suicidal ideation and depression scales of the Computerized Adaptive Test for Mental Health and self-reports of military occupational impairment. Class network protective factors hypothesized to mediate the effect of Wingman-Connect were assessed with 4 measures: cohesion assessed perceptions that classmates cooperate, work well together, and support each other; morale was measured with a single item used in other studies with military samples; healthy class norms assessed perceptions of behaviors supported by classmates; and bonds to classmates were assessed by asking each participant to name classmates whom they respect and would choose to spend time with.

Results: A total of 215 classes including 1485 individuals (1222 men [82.3%]; mean [SD] age, 20.9 [3.1] years) participated; 748 individuals were enrolled in the Wingman-Connect program and 737 individuals were enrolled in the stress management program. At 1 month, the Wingman-Connect group reported lower suicidal ideation severity (effect size [ES], -0.23; 95% CI, -0.39 to -0.09; P = .001) and depression symptoms (ES, -0.24; 95% CI, -0.41 to -0.08; P = .002) and fewer occupational problems (ES, -0.14; 95% CI, -0.31 to -0.02; P = .02). At 6 months, the Wingman-Connect group reported lower depression symptoms (ES, -0.16; 95% CI, -0.34 to -0.02; P = .03), whereas the difference in suicidal ideation severity was not significant (ES, -0.13; 95% CI, -0.29 to 0.01; P = .06). The number needed to treat to produce 1 fewer participant with elevated depression at either follow-up point was 21. The benefits of the training on occupational problems did not extend past 1 month. The Wingman-Connect program strengthened cohesive, healthy class units, which helped reduce suicidal ideation severity (estimate, -0.035; 95% CI, -0.07 to -0.01; P = .02) and depression symptom scores (estimate, -0.039; 95% CI, -0.07 to -0.01; P = .02) at 1 month.

Conclusions and relevance: Wingman-Connect is the first universal prevention program to reduce suicidal ideation and depression symptoms in a general Air Force population. Group training that builds cohesive, healthy military units is promising for upstream suicide prevention and may be essential for ecological validity. Extension of the program to the operational Air Force is recommended for maintaining continuity and testing the prevention impact on suicidal behavior.

Trial registration: ClinicalTrials.gov Identifier: NCT04067401.

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Conflict of interest statement

Conflict of Interest Disclosures: Dr Pisani reported receiving grants from the National Institute of Mental Health during the conduct of the study and speaking fees from SafeSide Prevention outside the submitted work. Dr Brown reported receiving grants from the Department of Defense and University of Rochester during the conduct of the study and personal fees from University of Chicago outside the submitted work. Dr Gibbons reported being an expert witness for the US Department of Justice, Merck, Glaxo-Smith-Kline, Pfizer, and Wyeth and being a founder of Adaptive Testing Technologies, which distributes the Computerized Adaptive Test for Mental Health battery of adaptive tests; the terms of this arrangement have been reviewed and approved by the University of Chicago in accordance with its conflict of interest policies. No other disclosures were reported.

Figures

Figure 1.
Figure 1.. Flow of Technical Training Classes and Airmen in the Wingman-Connect Trial
AFSC indicates Air Force Specialty Code.
Figure 2.
Figure 2.. Wingman-Connect and Stress Management Group Scores on Computerized Adaptive Test for Mental Health
Graphs show scores for suicidal ideation severity (A) and depression (B) over the 6-month study period. aP < .05 for Wingman-Connect vs stress management groups.
See this image and copyright information in PMC

Comment in

  • Hard Truths About Suicide Prevention.
    Perlis RH, Fihn SD. Perlis RH, et al. JAMA Netw Open. 2020 Oct 1;3(10):e2022713. doi: 10.1001/jamanetworkopen.2020.22713. JAMA Netw Open. 2020. PMID: 33084895 No abstract available.

References

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