Table 2 Accuracy rates for transformation zone, colposcopic diagnosis, and biopsy

Transformation Zone

 Overall accuracy rate

0.47 (0.45, 0.49)

0.45 (0.42, 0.48)

0.49 (0.46, 0.53)

0.034

 Accuracy rate for Type I/II

0.57 (0.54, 0.61)

0.56 (0.52, 0.60)

0.59 (0.54, 0.64)

0.163

 Accuracy rate for Type III

0.22 (0.19, 0.25)

0.19 (0.15, 0.23)

0.26 (0.22, 0.31)

0.015

Colposcopic Diagnosis

 Overall accuracy rate

0.53 (0.51, 0.55)

0.50 (0.48, 0.53)

0.56 (0.53, 0.59)

0.005

 Accuracy rate for Benign/normal

0.44 (0.40, 0.48)

0.42 (0.37, 0.48)

0.47 (0.41, 0.53)

0.138

 Accuracy rate for LSIL

0.54 (0.51, 0.58)

0.54 (0.49, 0.58)

0.55 (0.50, 0.60)

0.346

 Accuracy rate for HSIL+

0.59 (0.56, 0.63)

0.54 (0.49, 0.59)

0.65 (0.60, 0.71)

0.001

 Over diagnosis rate

0.22 (0.21, 0.24)

0.22 (0.19, 0.24)

0.23 (0.21, 0.25)

0.213

 Miss diagnosis rate

0.15 (0.14, 0.17)

0.16 (0.15, 0.18)

0.14 (0.12, 0.16)

0.027

Biopsy

 Accuracy rate

0.73 (0.71, 0.74)

0.71 (0.69, 0.73)

0.75 (0.72, 0.77)

0.013

 Over biopsy rate

0.09 (0.07, 0.10)

0.09 (0.07, 0.10)

0.08 (0.07, 0.10)

0.269

 Miss biopsy rate

0.15 (0.13, 0.16)

0.16 (0.14, 0.18)

0.14 (0.11, 0.16)

0.070