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A Bayesian multilevel analysis of the longitudinal associations between relationship quality and suicidal ideation and attempts among youth with bipolar disorder
Author(s) -
Sewall Craig J.R.,
Girard Jeffrey M.,
Merranko John,
Hafeman Danella,
Goldstein Benjamin I.,
Strober Michael,
Hower Heather,
Weinstock Lauren M.,
Yen Shirley,
Ryan Neal D.,
Keller Martin B.,
Liao Fangzi,
Diler Rasim S.,
Kay Gill Mary,
Axelson David,
Birmaher Boris,
Goldstein Tina R.
Publication year - 2021
Publication title -
journal of child psychology and psychiatry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.652
H-Index - 211
eISSN - 1469-7610
pISSN - 0021-9630
DOI - 10.1111/jcpp.13343
Subject(s) - psychology , suicidal ideation , multilevel model , bipolar disorder , clinical psychology , developmental psychology , poison control , suicide prevention , psychiatry , mood , medical emergency , medicine , statistics , mathematics
Background Youth with bipolar disorder (BD) are at high risk for suicidal thoughts and behaviors and frequently experience interpersonal impairment, which is a risk factor for suicide. Yet, no study to date has examined the longitudinal associations between relationship quality in family/peer domains and suicidal thoughts and behaviors among youth with BD. Thus, we investigated how between‐person differences – reflecting the average relationship quality across time – and within‐person changes, reflecting recent fluctuations in relationship quality, act as distal and/or proximal risk factors for suicidal ideation (SI) and suicide attempts. Methods We used longitudinal data from the Course and Outcome of Bipolar Youth Study ( N = 413). Relationship quality variables were decomposed into stable (i.e., average) and varying (i.e., recent) components and entered, along with major clinical covariates, into separate Bayesian multilevel models predicting SI and suicide attempt. We also examined how the relationship quality effects interacted with age and sex. Results Poorer average relationship quality with parents (β = −.33, 95% Bayesian highest density interval (HDI) [−0.54, −0.11]) or friends (β = −.33, 95% HDI [−0.55, −0.11]) was longitudinally associated with increased risk of SI but not suicide attempt. Worsening recent relationship quality with parents (β = −.10, 95% HDI [−0.19, −0.03]) and, to a lesser extent, friends (β = −.06, 95% HDI [−0.15, 0.03]) was longitudinally associated with increased risk of SI, but only worsening recent relationship quality with parents was also associated with increased risk of suicide attempt (β = −.15, 95% HDI [−0.31, 0.01]). The effects of certain relationship quality variables were moderated by gender but not age. Conclusions Among youth with BD, having poorer average relationship quality with peers and/or parents represents a distal risk factor for SI but not suicide attempts. Additionally, worsening recent relationship quality with parents may be a time‐sensitive indicator of increased risk for SI or suicide attempt.