(A)

Non-Clinical Populations (n = 3)
Author(s)	Study Design	Sample		Instrument Assessing MiL	SB-Related Variable
		Population	Size (N)		SI	SA	Completed Suicide	Other SB-Related Variables and/or Main Commentaries
Kleiman and Beaver, 2013 [55]	Cross-sectional and longitudinal prospective	Undergraduate students	670 (cross-sectional analysis); 585 (prospective analysis)	MLQ	↓ SI over time for both presence of MiL and search for MiL (greater effect for presence of MiL; minor effect for search for MiL)	↓ lifetime SA odds for presence of MiL	−	Additional findings: The presence of MiL, but not the search for MiL, mediated the relationship between MiL and the burdensomeness or thwarted belongingness and SI
Kim et al., 2017 [56]	Longitudinal prospective	Soldiers returning from deployment	970	MLQ	↓ for presence of MiL(miao)and ↑ for search for MiL	↓ for presence of MiL and(miao)↑ for search for MiL	−	Suicide risk (including four dimensions of SI and SB): ↑ for the search for MiL; (miao)↓ for the presence of MiL (the latter was described by the authors as consistent but not significant)
Collins et al., 2018 [57]	Cross-sectional	Undergraduate students	93	MLQ (the presence of MiL subscal only)	−	−	−	An experimentally-enhanced presence conferred resilience to the interpersonal adversity (“perceived burdensomeness” or “thwarted belongingness”) implicated in suicide risk