Skip to main content
Insights into Imaging

Table 2 Intraobserver reliability and interobserver agreement for the associated imaging features

From: Quantitative MRI indicators and features for partial subscapularis tendon tears on conventional shoulder MRI

Continuous variable

Intraobserver reliability, ICC (95% CI)

Interobserver agreement, ICC (95% CI)

Fluid collection under the CGA

0.90 (0.82–0.94)

0.90 (0.82–0.94)

Fat accumulation under the CGA

0.98 (0.96–0.99)

0.87 (0.80–0.92)

Categorical variables

Intraobserver reliability, k value (95% CI)

Interobserver agreement, k value (95% CI)

Fissure sign

0.82 (0.65–0.99)

0.81 (0.64–0.99)

Thinning of SSC

0.82 (0.66–0.99)

0.73 (0.54–0.93)

LTC

0.84 (0.69–0.99)

0.80 (0.64–0.97)

  1. Interpretation of ICC value and κ value: values < 0, no agreement; 0–0.20, slight agreement; 0.21–0.40, fair agreement; 0.41–0.60, moderate agreement; 0.61–0.80, substantial agreement; and 0.81–1.00, almost perfect agreement
  2. SSC Subscapularis, LTC Lesser tuberosity cysts, CGA Coraco-glenoid arch, SSP Supraspinatus tendon
Back to article page