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Table 4 Consistency (intraobserver variability) between the two readings for each radiologist. Level of intraobserver agreement expressed in ICC (as equivalent of the overall k) (P value < 0.01)

From: The validity of HSG in infertility work up

HSG diagnosisICC95% confidence intervalIntraobserver agreement (%)
Uterine cavity
(normal vs. abnormal)0.95(0.87–0.96)97%
congenital anomalies of uterine shape0.81(0.71–0.96)92%
Intraluminal filling defect
Sub mucous fibroid/polyp0.92(0.85–0.95)93%
Uterine adhesion0.25(0.10–0.35)80%
Abnormal uterine contour0.59(0.55–0.59)89%
 (normal vs. abnormal)0.93(0.87–0.96)95%
 Bilateral tubal patency0.87(0.71–0.87)89%
 Unilateral obstruction0.66(0.65–0.82)81%
 bilateral obstruction0.74(0.65–0.80)92%
Peritoneal abnormalities
 No peritoneal abnormalities0.61(0.60–0.68)88%
 Pelvic adhesions0.18(0.10–0.20)76%
 Peritubal adhesions0.23(0.20–041)81%