Skip to main content

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