Table 2 X-RAY versus CT insertion depth estimates
From: Effectiveness of skull X-RAY to determine cochlear implant insertion depth
| Group | Standard deviation of paired differences (degrees) | Mean difference (degrees) | Maximum difference (degrees) | Minimum difference (degrees) | P-value |
|---|---|---|---|---|---|
| CI surgeons | 45 | −2.0 | 99 | −68 | 0.84 |
| Fellows | 49 | 3.2 | 112 | −83 | 0.76 |
| Medical students | 47 | −2.2 | 100 | −78 | 0.83 |
| All raters | 43 | −0.9 | 93 | −75 | 0.93 |
| Caldwell | 29 | −5.8 | 40 | −57 | 0.51 |
| Towne | 59 | 5.7 | 93 | −75 | 0.78 |