Implicit cognition tests for the prediction of suicide risk of non-suicidal self-injury in individuals: A systematic review

Figure 1 PRISMA flow diagram of the study selection process. The initial search revealed 189 results. After screening, full-text review and study selection, 9 articles were finally included in the review.

Figure 2 Quality assessment of included studies according to the Newcastle-Ottawa Scale. The quality of the included studies, as assessed by the Newcastle-Ottawa Scale is summarized. Of the 9 studies: 6 studies were rated as “high quality” (≥ 7 stars), with strong scores in participant selection and outcome assessment. 3 studies were rated as “moderate quality” (4-6 stars), primarily due to limited adjustment for confounders (e.g., comorbid mental health conditions) or shorter follow-up periods. No studies were rated as “low quality” (≤ 3 stars), indicating that the included literature generally meets high methodological standards.