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. Author manuscript; available in PMC: 2022 Sep 1.
Published in final edited form as: J Affect Disord. 2021 Jun 6;292:337–344. doi: 10.1016/j.jad.2021.05.104

Table 2.

Mixed effects logistic models examining daily associations with nonsuicidal self-injury (NSSI)

Overall sample (n=1613) Subsample with last-month NSSI (n=993)

Variable B(SE) Odds Ratio (OR) OR CI (lower, upper) p B(SE) Odds Ratio (OR) OR CI (lower, upper) p
Suicidal Ideation (SI) Duration
Between-person SI duration 0.93 (0.25) 2.54 (1.56, 4.14) <.001 0.98 (0.24) 2.67 (1.66, 4.28) <.001
Within-person SI duration 0.69 (0.15) 1.99 (1.48, 2.69) <.001 0.80 (0.17) 2.22 (1.58, 3.11) <.001
Lifetime NSSI severity (baseline) 0.42 (0.13) 1.53 (1.18, 1.97) .001 0.13 (0.16) 1.14 (0.84, 1.55) .401
Model R2= 0.49 Model R2= 0.24
SI Urge Severity
Between-person SI urge 0.63 (0.21) 1.87 (1.25, 2.80) .002 0.70 (0.21) 2.02 (1.34, 3.03) .001
Within-person SI urge 0.51 (0.12) 1.66 (1.32, 2.10) <.001 0.55 (0.12) 1.73 (1.36, 2.19) <.001
Lifetime NSSI severity (baseline) 0.42 (0.14) 1.53 (1.17, 2.00) .002 0.13 (0.17) 1.14 (0.82, 1.58) .437
Model R2=0.31 Model R2= 0.23

Notes: All four models include random intercept and slope and adjust for effect of time; CI=confidence interval.