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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 diagnosis

ICC

95% confidence interval

Intraobserver agreement (%)

Uterine cavity

(normal vs. abnormal)

0.95

(0.87–0.96)

97%

congenital anomalies of uterine shape

0.81

(0.71–0.96)

92%

Intraluminal filling defect

Sub mucous fibroid/polyp

0.92

(0.85–0.95)

93%

Uterine adhesion

0.25

(0.10–0.35)

80%

Abnormal uterine contour

0.59

(0.55–0.59)

89%

Tubes

 (normal vs. abnormal)

0.93

(0.87–0.96)

95%

 Bilateral tubal patency

0.87

(0.71–0.87)

89%

 Unilateral obstruction

0.66

(0.65–0.82)

81%

 bilateral obstruction

0.74

(0.65–0.80)

92%

Peritoneal abnormalities

 No peritoneal abnormalities

0.61

(0.60–0.68)

88%

 Pelvic adhesions

0.18

(0.10–0.20)

76%

 Peritubal adhesions

0.23

(0.20–041)

81%