The SBQ-R (Suicide Behaviors Questionnaire-Revised): A Clinician Guide

The Suicide Behaviors Questionnaire-Revised (SBQ-R) is a brief, four-item self-report screen covering lifetime and current suicide risk across ideation, planning, communication, and self-rated future likelihood. It takes about two minutes to complete and is one of the most widely used brief suicide screens in both community and clinical samples. This guide covers exactly what each item asks, how the four items combine into a total, the reference cut-offs reported in the literature, and - most importantly - the limits of what a total score can tell a clinician.

What the SBQ-R measures

The SBQ-R is a four-item screen for lifetime and current suicide risk in adolescents and adults, developed by Osman and colleagues (2001). Its four items each probe a different dimension of suicide risk: lifetime suicidal ideation and attempts, frequency of suicidal ideation over the past 12 months, whether the respondent has communicated intent to attempt suicide to others, and the respondent's self-rated likelihood of attempting suicide in the future. As a screening instrument, its purpose is to flag risk that warrants further evaluation - it is explicitly not a substitute for a full risk formulation.

The four items and why each has a different scale

Unlike most instruments where every item shares one response scale, the SBQ-R's four items each use a different response set and point range, reflecting the different question each is asking:

• Item 1 (lifetime ideation and/or attempts) is scored on a scale reaching up to 5, with an actual suicide attempt scoring at the top of the range.
• Item 2 (frequency of suicidal ideation in the past 12 months) is scored on its own scale reaching up to 4.
• Item 3 (communication of intent to attempt suicide to others) uses the narrowest scale, reaching up to 3.
• Item 4 (self-rated likelihood of a future suicide attempt) is scored on the widest scale, reaching up to 6.

Because the four items are not interchangeable Likert points, they cannot be averaged the way a typical multi-item scale can - each item's raw score reflects a different underlying question, and only the sum across all four is meaningful.

How to score the SBQ-R

The four item scores are summed to produce a total ranging from 3 to 18. Three specific items also function as standalone risk flags regardless of the total: item 1 scoring 5 or above (indicating an actual attempt), item 2 scoring 4 or above, and item 4 scoring 4 or above should each be treated as a risk signal in their own right, independent of where the overall total falls.

SBQ-R cut-offs: 7 in general populations, 8 in psychiatric inpatients

The SBQ-R's own platform scoring does not apply an automatic severity band to the total - there is no single published cut-off that applies universally across settings. The research literature, however, reports two commonly cited reference points: a total of 7 or higher is the reference cut-off used in general adult population samples, while a total of 8 or higher is the reference cut-off used in psychiatric inpatient samples, reflecting the higher base rate of risk indicators in that population. Which reference point applies depends on the setting - a score of 7 in a general adult outpatient population is treated differently than the same score would be in a psychiatric inpatient unit, where 8 is the more appropriate reference.

A screen, not a risk formulation

This is the single most important point about the SBQ-R: it is a screening instrument, and a score below the cut-off does not rule out risk. A patient can score below 7 overall and still have endorsed a genuinely concerning individual item. For that reason, any endorsement of a past attempt or an existing plan warrants immediate clinical assessment regardless of the total score - the total is a useful summary for tracking and triage, but it should never override a direct, individual endorsement of attempt or planning items. No total-score threshold substitutes for a clinician directly asking about current ideation, plan, intent, and access to means.

SBQ-R vs C-SSRS

Clinicians often compare the SBQ-R with the Columbia-Suicide Severity Rating Scale (C-SSRS). The SBQ-R is a brief self-report screen - four items, about two minutes, well suited to routine screening across large numbers of patients. The C-SSRS is typically administered as a structured clinician interview with a more detailed ideation-and-behaviour taxonomy, better suited to an in-depth risk assessment once a screen (such as the SBQ-R, or a positive item on another instrument) has already flagged concern. In practice, many services use a brief screen like the SBQ-R for routine intake and reserve a structured interview approach for any patient who screens positive or presents with other risk indicators.

Who administers it, time required, setting

The SBQ-R is a patient self-report measure suitable for adolescents and adults, and typically takes about two minutes to complete. Its brevity makes it practical for routine screening at intake, in primary care, and in any setting where suicide risk needs to be assessed quickly alongside other presenting concerns.

Limitations

Self-report suicide screens depend on honest disclosure, and a patient who is guarded, ambivalent, or fearful of the consequences of disclosure may under-report. The SBQ-R's brevity is also a limitation: four items cannot capture the nuance of a full risk assessment, including protective factors, means access, and recent stressors. Because the four items use different scales, the total is less intuitive to interpret at a glance than a simple sum of identical Likert items, and clinicians reviewing raw totals should always check the individual risk-flag items rather than relying on the total alone.

Using the SBQ-R digitally

Digital administration is particularly valuable for a suicide risk screen: the platform can calculate the total automatically, apply the correct point value to each of the four differently-scaled items without manual lookup, and prominently flag any positive response on the standalone risk items - item 1 at 5 or above, item 2 at 4 or above, item 4 at 4 or above - so a concerning individual answer is never missed even when the overall total looks unremarkable. This supports the same principle behind item 9 flagging on the PHQ-9: a risk item deserves attention on its own, regardless of the total score.

Key takeaways

• The SBQ-R has four items, each with a different response scale, summing to a total from 3 to 18.
• Reference cut-offs from the literature are 7 or higher in general adult populations and 8 or higher in psychiatric inpatients.
• Items 1 (>=5), 2 (>=4), and 4 (>=4) act as standalone risk flags independent of the total.
• It is a screening instrument - a score below the cut-off does not rule out risk.
• Any endorsement of a suicide attempt or an existing plan warrants immediate clinical assessment regardless of the total score.