Previous research indicates that both suicidal ideation and several risk factors fluctuate substantially within hours. Factors that increase the risk of suicidal ideation in the long-term may...Show morePrevious research indicates that both suicidal ideation and several risk factors fluctuate substantially within hours. Factors that increase the risk of suicidal ideation in the long-term may differ from factors contributing to present suicidal ideation. The aim of this single-case study was to investigate real-time, concurrent associations between suicidal ideation and perceived burdensomeness, hopelessness, loneliness, optimism, social support, and stress. Data were obtained via ecological momentary assessment with four assessments per day over a 21-day period. It was hypothesised that higher scores of burdensomeness, hopelessness, loneliness, and stress, as well as lower optimism scores and the absence of social support would be associated with concurrent increases in suicidal ideation. Additionally, the role of social support as a potential moderator of the relationships between suicidal ideation and perceived burdensomeness, hopelessness, loneliness, optimism, and stress was examined. A multilevel linear mixed model analysis yielded significant associations between hopelessness, loneliness, and social support with suicidal ideation. Further, social support significantly moderated the association between suicidal ideation and hopelessness, with both being lower when the participant was in company. These results imply that repeated daily assessments of hopelessness, loneliness, and social support in individuals at suicide risk may be used as indicators of the severity of current suicidal ideation. Besides, social support may serve as a protective factor that could be integrated in suicide prevention strategies. Nonetheless, these conclusions are limited in their external validity given the case-study design. Further research replicating this study with a larger sample is needed to obtain generalisable conclusions.Show less
