Table 2. Intra- and inter-rater reliability of the infrasternal angle measurement by the radiographic method (N=25)

Radiographic measurement Intra-rater reliability Inter-rater reliability
ICCs(3,1) 0.99 0.99
95% CI 0.98-0.99 0.98-0.99
SEM 1.13° 0.99°
MDD 3.13° 2.76°
ICC: intraclass correlation coefficients, CI: confidence interval, SEM: standard error of measurement, MDD: minimal detectable difference.