Table 1 Information about the participating medical institutions
| Â | Gamagori City Hospital | Tsushima City Hospital | Nagoya Daini Red Cross Hospital | Overall | P-value |
|---|---|---|---|---|---|
Medical sphere (Number of people) | 140,000 | 300,000 | 570,000 | 1,010,000 | < 0.001* |
Number of ambulances per year in 2019 | 3351 | 4380 | 12,726 | 20,457 | < 0.001* |
Number of emergency patients in 2019 | 14,131 | 13,724 | 37,713 | 65,568 | < 0.001* |
Number of residents in 2019 | 7 | 11 | 47 | 65 | < 0.001* |
X-ray generator | MODEL TF-6TL-6 (TOSHIBA, Japan) | UD150L-40 (SHIMADZU, Japan) | DHF-153HII (HITACHI, Japan) | Â | |
Image processing unit | CALNEO Smart C12 (FUJIFILM, Japan) | Aero DR (Konica Minolta, Japan) | FCR VELOCITY (FUJITSU, Japan) | ||
Image file format | .jpeg | .dcm | .jpeg | ||
Image size | 4892 × 4020 pixel | 3451 × 2836 pixel | 2039 × 1380 pixel | ||