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. 2018 Dec 17;42(3):zsy257. doi: 10.1093/sleep/zsy257

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Published by Oxford University Press on behalf of Sleep Research Society (SRS) 2018.

This work is written by (a) US Government employee(s) and is in the public domain in the US.

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Figure 2. — (2a) Proposed conditional association of combat exposure on health-related behaviors through psychological health, based on different sleep durations (conceptual). Conceptually, this model compares the strength of the indirect effect of combat exposure on health-related behaviors through psychological health for each of the two sleep durations. We predict that this indirect association is stronger for shorter sleep duration (<6 hr) than for longer sleep duration (>6 hr). (2b) Proposed conditional association of combat exposure on health-related behaviors through psychological health, based on different sleep durations (computational). Statistically, this model is tested as (a_1i + a_3i * sleep duration) * b_i. (2c) Alternative model (conceptual) of combat exposure on health-related behaviors through psychological health, based on different sleep durations. (2d) Alternative model (computational) of combat exposure on health-related behaviors through psychological health, based on different sleep durations. Conditional indirect association of combat exposure on health-related behaviors through psychological health = a_i (b_1i + b_3i * sleep duration).