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. Author manuscript; available in PMC: 2018 Dec 1.
Published in final edited form as: Psychol Bull. 2017 Oct 26;143(12):1313–1345. doi: 10.1037/bul0000123

Table 1.

Characteristics of Samples Included in the Meta-Analysis and Systematic Review of the Interpersonal Theory of Suicide (Total k = 143).

Variable Category k

Location United States / Canada 120
Outside of United States / Canada 17
United States Military Living Abroad 6

Article Publication Year 2005–2010 12
2011–2015 131

Mean Age of Sample Youth (<18 years) 4
Young Adults (18–24 years) 69
Adults (25+ years) 60
Older Adults (60+ years) 10

Military Sample Yes 24
No 119

Sample Type Inpatient 11
Outpatient 21
Undergraduate Students 63
Community 48

Web-Based Study Yes 66
No 77

Study Design Cross-Sectional 132
Longitudinal 11

Sample Size <100 15
100–199 43
200–399 42
400–699 22
700+ 21

Note. k = number of samples.