Table 3. Quality control inter-readera variability breakdown (n=56).
| Measure | ICCb | TEM Relativec | Pearson | P Pearson |
|---|---|---|---|---|
| EDV2 | .97844 | 3.6507 | .97897 | 1.80E-12 |
| EDV4 | .97018 | 5.1355 | .9708 | 2.43E-11 |
| ESV2 | .97209 | 5.6769 | .97298 | 1.31E-11 |
| ESV4 | .96442 | 6.1972 | .96554 | 8.98E-11 |
| IVSD | .79735 | 10.4784 | .80053 | .000065959 |
| LADIM | .97038 | 2.6329 | .971 | 4.29E-10 |
| LAV2 | .99019 | 7.5035 | .99067 | 2.80E-15 |
| LAV4 | .98998 | 5.1651 | .9905 | 3.25E-15 |
| LVIDD | .96245 | 2.3635 | .96279 | 1.65E-10 |
| LVPWD | .88813 | 7.4347 | .89616 | .000000488 |
a
Intra-reader values were slightly better than inter-reader values for all measures.
b
Intraclass correlation (ICC) is interpreted as follows: .3–.4 indicates poor agreement; .5–.6 indicates fair agreement; .7–.8 indicates moderate agreement; and >.8 indicates strong agreement.
c
Relative technical error of measurement or TEM Relative (standardized measurement variability) is interpreted as follows: Agreement between readings was defined as differences of ≤10%; borderline agreement as differences of 11–15; and disagreement as differences >15%.