Table 2.

Clinical usefulness of the GDS-15 to identify risk of suicide

GDS-15 scores	Numbers of subjects (N)			Clinical usefulness parameters (%)
	Participants	Detected at risk of suicide*	Missed at risk of suicide*	Decreased direct asking rates for suicide	Detection rate of at risk of suicide
15	25	5	36	97.4	12.2
≥14	70	12	29	92.6	29.3
≥13	129	23	18	86.4	56.1
≥12	196	29	12	79.3	70.7
≥11	254	31	10	73.2	75.6
≥10†	314	33	8	66.9	80.5
≥9	382	37	4	59.7	90.2
≥8	463	39	2	51.2	95.1
≥7	530	39	2	44.1	95.1
≥6	607	41	0	36.0	100.0
≥5	679	41	0	28.4	100.0
≥4	745	41	0	21.4	100.0
≥3	810	41	0	14.6	100.0
≥2	864	41	0	8.9	100.0
≥1	900	41	0	5.1	100.0
≥0	948	41	0	0.0	100.0

^*at risk of suicide defined as among those with suicidality, anyone who had planned or attempted suicide,

^†depression cut-off score.

GDS-15: Geriatric Depression Scale-15