Table 2.

Key Estimates From Three Individual Multilevel Structural Equation Models Showing Associations Among Sleep, Negative Affect, and Suicidal Ideation

	Model Set 1 Hypothesis 1a		Model Set 2 Hypothesis 1b		Model Set 3 Hypothesis 1c
	Est (CI)	β	Est (CI)	β	Est (CI)	β
Sleep Latency
Within-person
Sleep → Suicidal ideation (c)	.00 [−.00, .01]	.14	—	—	.00 [00, .00]	.13
Sleep → NA (a)	—	—	.00 [−.00, .01]	.06	.00 [−.00, .00]	.02
NA → Suicidal ideation (b)	—	—	—	—	.14 [.08, .20]	.45
Indirect effect	—	—	—	—	.00[−.00, −.01]	—
Between-person
Sleep ↔ Suicidal ideation	.01 [.00, .01]	.24	—	—	.99 [.38, 1.70]	.24
Sleep ↔ NA	—	—	.02 [.01, .02]	.44	3.92 [2.50, 5.60]	.44
NA ↔ Suicidal ideation	—	—	—	—	.06 [.04, .10]	.36
Sleep duration
Within-person
Sleep → suicidal ideation (c)	−.00 [−.01, .01]	−.04	—	—	−.01 [−02, .01]	−.07
Sleep → NA (a)	—	—	−.01 [−.02, .01]	−.10	−.02 [−03, .00]	−.15
NA → suicidal ideation (b)	—	—	—	—	.15 [.09, .20]	.48
Indirect effect	—	—	—	—	.00 [−.01, .01]	—
Between-person
Sleep ↔ suicidal ideation	.02 [−.03, .07]	.06	—	—	.01 [−.04, .07]	.04
Sleep ↔ NA	—	—	−.03 [−.12, .06]	−.07	−.04 [−.16, .08]	−.05
NA ↔ suicidal ideation	—	—	—	—	.07 [.04, .10]	.37
Subjective sleep quality
Within-person
Sleep → suicidal ideation (c)	−.01 [−.03, .00]	−.16	—	—	−.01 [−.03, .00]	−.21
Sleep → NA (a)	—	—	−.05 [−.08, −.02]	−.33	−.08 [−.11, −.05]	−.49
NA → suicidal ideation (b)	—	—	—	—	.13 [.08, .19]	.45
Indirect effect	—	—	—	—	−.01 [−.02, .01]	—
Between-person
Sleep ↔ suicidal ideation	−.03 [−.10, .03]	−.06	—	—	.00 [−.03, .03]	.00
Sleep ↔ NA	—	—	−.24 [−.37, −.12]	−.29	−.13 [−.20, −.07]	−.32
NA ↔ suicidal ideation	—	—	—	—	.07 [.04, .10]	.36

Note. N = 201 (between), N = 4,076 (within); → indicates regression; β parameter estimates are standardized. 95% credibility intervals of unstandardized parameter estimates are in parentheses. Bolded values indicate the credibility interval does not contain zero; CI = credibility interval; NA = negative affect.