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.