Decreased Hospital Length of Stay for ICH and PE after Adoption of an Artificial Intelligence-Augmented Radiological Worklist Triage System
Table 3
Statistical descriptions of the PE-related patient cohorts.
Pre-AI
Post-AI
Patients diagnosed for PE
Mean (CI 95%)
7.91 (6.58–9.23)
5.83 (4.44 –7.23)
Difference in means
2.07 days ( value = 0.034)
% Difference in means
26.3%
Median
4.27
3.73
Standard deviation
10.21
9.22
25th percentile
2.49
2.17
75th percentile
9.85
5.99
99th percentile
45.86
44.34
PE control group 1—patients that underwent related imaging but were not diagnosed with PE
Mean (CI 95%)
9.24 (8.77–9.70)
9.72 (9.23 –10.21)
Difference in means
−0.49 days ( value = 0.157)
% Difference in means
−5.2%
Median
5.04
5.25
Standard deviation
11.90
13.0
25th percentile
2.83
2.96
75th percentile
10.21
10.96
99th percentile
62.00
70.04
PE control group 2—patients diagnosed with hip fractures
Mean (CI 95%)
6.88 (6.45–7.30)
6.93 (6.53–7.33)
Difference in means
0.21 days ( value = 0.083)
% Difference in means
3.0%
Median
4.77
4.92
Standard deviation
8.46
7.59
25th percentile
3.54
3.25
75th percentile
6.88
7.38
99th percentile
42.28
37.17
PE control group 3—all patients
Mean (CI 95%)
6.51 (6.42–6.60)
6.35 (6.28–6.41)
Difference in means
0.16 days ( value = 0.656)
% Difference in means
2.5%
Median
3.21
3.25
Standard deviation
16.15
12.53
25th percentile
2.04
2.08
75th percentile
5.83
6.00
99th percentile
60.15
61.04
ICD : international classification of diseases. PE : pulmonary embolism. ICH : intracranial hemorrhage. AI : artificial intelligence. CI 95%: 95% confidence interval.
