It is very uncertain whether comparison 11: Other multimodal interventions changes repetition of SH at post‐intervention compared with TAU or another comparator (very low certainty).
Comparison 7: Other mixed interventions showed no clear difference in repetition of SH at post‐intervention compared with treatment (low certainty).
Comparison 5: Psychodynamic psychotherapy showed no clear difference in repetition of SH at post‐intervention compared with TAU or another comparator (moderate certainty).
Comparison 9.7: Telephone‐based psychotherapy showed no clear difference in repetition of SH at post‐intervention compared with TAU or another comparator (low certainty).
Comparison 4: Emotion‐regulation psychotherapy probably leads to lower repetition of SH at post‐intervention compared with TAU or another comparator (moderate certainty).
Comparison 1.2: Group‐based CBT‐based psychotherapy showed no clear difference in repetition of SH at post‐intervention compared with TAU or another comparator (moderate certainty).
Comparison 1.1: Individual‐based CBT‐based psychotherapy showed no clear difference in repetition of SH at post‐intervention compared with TAU or another comparator (low certainty).
Comparison 1: CBT‐based psychotherapy showed no clear difference in repetition of SH at post‐intervention compared with treatment (low certainty).
Comparison 6: Case management showed no clear difference in repetition of SH at post‐intervention compared with TAU or another comparator (low certainty).
Comparison 9.1: Emergency cards showed no clear difference in repetition of SH at post‐intervention compared with TAU or another comparator (low certainty).
Comparison 9.2: Coping cards showed no clear difference in repetition of SH at post‐intervention compared with TAU or another comparator (moderate certainty).
It is very uncertain whether comparison 9.4: Postcards changes repetition of SH at post‐intervention compared with TAU or another comparator (very low certainty).
Comparison 9.5: Telephone contact showed no clear difference in repetition of SH at post‐intervention compared with TAU or another comparator (low certainty).
Comparison 9.6: Telephone contact, emergency cards, and letters showed no clear difference in repetition of SH at post‐intervention compared with TAU or another comparator (moderate certainty).
It is very uncertain whether comparison 10: Provision of information and support changes repetition of SH at post‐intervention compared with TAU or another comparator (very low certainty).
Comparison 12.5: General hospital management showed no clear difference in repetition of SH at post‐intervention compared with TAU or another comparator (moderate certainty).
Comparison 12.8: Long‐term therapy showed no clear difference in repetition of SH at post‐intervention compared with TAU or another comparator (low certainty).
It is very uncertain whether comparison 2.1: DBT changes repetition of SH by post‐intervention compared with TAU or another comparator (very low certainty).
Comparison 2.4: DBT prolonged exposure protocol showed no clear difference in repetition of SH at post‐intervention compared with TAU or another comparator (moderate certainty).
Comparison 3: MBT leads to lower repetition of SH at post‐intervention compared with TAU or another comparator (high certainty).