Table 2.
A 2 × 2 table compared the results between a portable near-infrared spectroscopy (NIRS) and CT brain.
| CT |
Total | |||
|---|---|---|---|---|
| Positive | Negative | |||
| NIRS | Positive | 11 | 20 | 31 |
| Negative | 0 | 16 | 16 | |
| Total | 11 | 36 | 47 | |
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