Endpoint
Suicidal ideation severity (across unharmonised instruments)
CAT:outcome/suicidal-ideation-severity-pooledreported in standardised mean difference
How it is measured
Severity of suicidal ideation on whichever rating instruments the source studies used (C-SSRS, BSS, MADRS suicide item, QIDS suicide item and similar), expressed on a common standardised scale across unharmonised instruments with no single instrument held constant.