Decreased Hospital Length of Stay for ICH and PE after Adoption of an Artificial Intelligence-Augmented Radiological Worklist Triage System
Table 2
Statistical descriptions of the ICH-related patient cohorts.
Pre-AI
Post-AI
Patients diagnosed for ICH
Mean (CI 95%)
10.92 (10.05–11.79)
9.62 (8.81–10.43)
Difference in means
1.30 ( value = 0.032)
% Difference in means
11.9%
Median
6.25
5.12
Standard deviation
13.48
11.62
25th percentile
3.00
2.88
75th percentile
13.88
11.77
99th percentile
75.99
55.97
ICH control group 1—patients that underwent related imaging but were not diagnosed with ICH
Mean (CI 95%)
9.19 (8.90–9.47)
8.73 (8.47–8.98)
Difference in means
0.46 ( value = 0.018)
% Difference in means
5.0
Median
5.04
4.79
Standard deviation
12.05
12.00
25th percentile
2.79
2.71
75th percentile
10.54
9.38
99th percentile
64.8
63.0
ICH control group 2—patients diagnosed with hip fractures
Mean (CI 95%)
7.26 (6.86–7.66)
6.66 (6.27–7.04)
Difference in means
0.60 days ( value = 0.004)
% Difference in means
8.3%
Median
5.08
4.75
Standard deviation
7.66
7.91
25th percentile
3.79
3.38
75th percentile
7.83
6.92
99th percentile
35.08
34.29
ICH control group 3—all patients
Mean (CI 95%)
5.29 (5.24–5.33)
5.82 (5.77–5.87)
Difference in means
−0.54 days ( value < 0.001)
% Difference in means
−10%
Median
3.17
3.21
Standard deviation
7.47
9.11
25th percentile
2.04
2.04
75th percentile
5.59
5.88
99th percentile
37.59
48.75
ICD : international classification of diseases. PE : pulmonary embolism. ICH : intracranial hemorrhage. AI : artificial intelligence. CI 95%: 95% confidence interval.
