Table 1 Patient’s radiologic and clinical information in training, internal and external testing datasets
From: Intelligent detection and grading diagnosis of fresh rib fractures based on deep learning
Characteristic | Training data set | Internal testing data set | External testing data set | P value |
|---|---|---|---|---|
No. of patients, n (%) | 306 | 77 | 50 | - |
Age, years, M (Q1, Q3) | 57 (48 ~ 69) | 55 (53 ~ 62) | - | 0.256 |
Gender, male, n (%) | 202 (66.0%) | 59 (76.6%) | - | 0.766 |
No. of fracture annotations (total) | 3646 | 1027 | 821 | - |
Annotations of non-severe fracture | 2455 | 685 | 660 | - |
Annotations of Severe fracture | 1191 | 342 | 161 | - |