Group | Total N | Opioid overdose event status by data source: n (%) | Mean days to first overdose event¶ | ||||
First opioid overdose in UW Medicine* | First opioid overdose in CHARS† | First opioid overdose fatality in DOH‡ | Non-overdose fatality in DOH‡ | No event prior to censoring at study end§ | |||
Comparison group | 126 | 21 (16.7) | 6 (4.8) | 6 (4.8) | 7 (5.6) | 86 (68.3) | 836 |
Intervention group | 115 | 18 (15.7) | 4 (3.5) | 2 (1.7) | 8 (7.0) | 83 (72.2) | 870 |
Combined | 241 | 39 (16.2) | 10 (4.2) | 8 (3.3) | 15 (6.2) | 169 (70.1) | 852 |
*Local inpatient admission or emergency department visit.
†Statewide hospital discharge for inpatient admission or observation visit.
‡Death certificate data, Department of Health.
§Available follow-up time: 272–1064 days.
¶Mean is underestimated because the largest observed analysis time is censored.
CHARS, Comprehensive Hospital Abstract Reporting System; UW, University of Washington.