Related Variables

	si_lf_severity	Columbia Suicide Severity Ratings Scale Summary Value: Suicidal ideation severity in lifetime Summary item from a modified version of the CSSRS Questionnaire. Salvi 2019 (PMID: 31039299) Formula: Sum of :cssrs_lf_1: - :cssrs_lf_5: Search for all CSSRS Questionnaire variables within this dataset	General Health/Columbia Suicide Severity Ratings Scale - Modified (CSSRS)
	si_lf_yn	Columbia Suicide Severity Ratings Scale Summary Value: Suicidal ideation yes/no in lifetime Summary item from a modified version of the CSSRS Questionnaire. Salvi 2019 (PMID: 31039299) Formula: Yes if 1 for :cssrs_lf_1: or :cssrs_lf_2:, No otherwise Search for all CSSRS Questionnaire variables within this dataset	General Health/Columbia Suicide Severity Ratings Scale - Modified (CSSRS)

Assessing Nocturnal Sleep/Wake Effects on Risk of Suicide