. Author manuscript; available in PMC: 2019 Sep 1.

Published in final edited form as: Psychiatr Serv. 2018 Jun 8;69(9):993–1000. doi: 10.1176/appi.ps.201700545

Table 3.

Outpatient and inpatient utilization before and after suicide risk patient record flag initiation (n = 8,738)

		Before Patient Record Flag		After Patient Record Flag
		Mean	SD	Mean	SD	IRR	95% CI	p-value
Outpatient utilization
Primary care visits	3 Months	1.1	1.6	1.5	2.1	1.33	1.29 – 1.38	^*
Primary care visits	1 Year	3.8	4.2	4.6	4.8	1.22	1.20 – 1.25	^*
Mental health visits	3 Months	5.9	6.9	12.6	10.1	2.29	2.24 – 2.34	^*
Mental health visits	1 Year	16.0	20.0	31.4	27.6	2.22	2.17 – 2.27	^*
Substance use disorder visits	3 Months	1.8	5.3	5.1	9.6	4.10	3.80 – 4.42	^*
Substance use disorder visits	1 Year	6.3	15.5	12.2	22.1	1.98	1.84 – 2.13	^*
Emergency department visits	3 Months	1.1	1.4	.6	1.2	.55	.53 – .58	^*
Emergency department visits	1 Year	2.3	3.1	2.0	3.2	.83	.80 – .85	^*
Inpatient Utilization
Medical days hospitalized	3 Months	.3	1.8	.4	3.0	1.27	1.05 – 1.52
Medical days hospitalized	1 Year	1.1	5.0	1.4	6.7	1.24	1.10 – 1.39	^*
Mental health days hospitalized	3 Months	1.4	4.4	1.9	7.9	1.39	1.25 – 1.54	^*
Mental health days hospitalized	1 Year	3.3	9.3	5.0	15.5	1.54	1.43 – 1.66	^*
Substance use disorder days hospitalized	3 Months	.7	3.1	.9	4.3	1.30	1.15 – 1.48	^*
Substance use disorder days hospitalized	1 Year	1.9	6.4	2.6	8.7	1.41	1.30 – 1.53	^*

Notes: SD = Standard Deviation; IRR = Incidence Rate Ratio; CI = Confidence Interval; PRF = Patient Record Flag

Analyses exclude patients who died in the year following PRF initiation (n=175). Visits occurring on date of flag activation are not included.

p < .001.