2. Introduction
NB Trauma Program and Registry
Project objectives
Methods
Results
Conclusion
3. NBTP and NBTR
NBTP manages the NBTR
Injury admits from 8 hospitals in the NBTR
NBTR also has more info on ISS>12 (severely injured
patients); collected from SJRH and TMH
4. Project objectives
Determine undercount of mortality in the NBTR compared to
the CIHI DAD
Determine who dies from injury, how long after discharge do
they die, and primary cause of death
5. Methods
Sources of data – CIHI DAD, NBTR, and Vital Statistics (1
year of data from NBTP)
First obtain number of trauma-related deaths from each
dataset
Use these to determine mortality rates (per 1000 injured
people)
Mortality rates determined for deaths that occurred in-hospital,
6 months after discharge, and up to 1 year after discharge
6. Methods (continued)
Inclusion criteria (DAD) – At least one external cause of injury
code and one injury code. Eg.: an individual who met with a
bicycle accident and broke their ankle
Exclusion – poisonings by drugs and gases, adverse effects of
drugs and biological substances
DAD-only cohort had approx. 7500 individuals (unique
admissions). NBTR had about 2100
7. Methods (continued)
Age-groups considered: 0-24, 25-39, 40-64, and 65-84
Since # of deaths for 0-39 < what NB-IRDTdisclosure rules
allow, those age-groups are excluded here
Observed death rate compared to expected rate by matching
with 2014 mortality rates for NB
11. Results (continued)
For injured patients in the DAD-only cohort, in-hospital deaths
caused by injury was highest for the 85+ age group
For injured patients in the NBTR, approx. half the patients who
died in-hospital had injury as primary COD
Heart diseases and neoplasms were the predominant primary
COD for all age-groups after discharge
12. Conclusions and future work
Undercount in the NBTR due to fewer injuries captured in the
registry
Since many 40-85+ year olds died of heart conditions after
discharge, need to investigate why people (particularly 40-64
year olds) are dying and explore how risk factors are being
addressed post-discharge – will likely have policy implications
More years of data from NBTP will allow for full disclosure and
further analyses
13. Project team
Dr. Daniel Dutton
Susan Benjamin
Dr. Bryn Robinson
Ian Watson