Table 4.
Intraclass correlations and coefficients of repeatability and reproducibility (obtained in Cagliari).
| PMI | Close mode | Open mode | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ICC(3) (intra) | ICC(4) (intra) | ICC(3–4) (inter) | CoR % | CVw% | CoR3–4% | CVw% | ICC(3) (intra) | ICC(4) (intra) | ICC(3–4) (inter) | CoR % | CVw % | CoR3–4% | CVw % | |
| 2nd | 0.995 | 0.983 | 0.967 | 0.6 (0.4–0.7) | 0.1 | 0.5 (0.3–0.5) | 0.2 | 0.985 | 0.984 | 0.985 | 0.5 (0.3–0.6) | 0.2 | 0.4 (0.3–0.5) | 0.2 |
| 3rd | 0.966 | 0.954 | 0.938 | 0.7 (0.5–0.8) | 0.3 | 0.6 (0.4–0.7) | 0.3 | 0.955 | 0.954 | 0.946 | 0.5 (0.4–0.7) | 0.2 | 0.4 (0.3–0.7) | 0.2 |
| 4th | 0.956 | 0.948 | 0.939 | 0.4 (0.3–0.7) | 0.2 | 0.5 (0.3–0.7) | 0.1 | 0.947 | 0.948 | 0.947 | 0.7 (0.4–0.8) | 0.1 | 0.4 (0.3–0.6) | 0.2 |
| 5th | 0.946 | 0.938 | 0.936 | 1.4 (1.3–1.6) | 1.0 | 1.4 (1.3–1.5) | 1.1 | 0.936 | 0.934 | 0.940 | 1.5 (1.3–1.6) | 1.1 | 1.4 (1.2–1.5) | 1.0 |
| 6th | 0.946 | 0.938 | 0.939 | 1.7 (1.4–1.8) | 1.1 | 1.4 (1.3–1.5) | 1.0 | 0.937 | 0.936 | 0.939 | 1.6 (1.4–1.7) | 1.0 | 1.3 (1.4–1.5) | 0.8 |
| 7th | 0.947 | 0.938 | 0.943 | 1.5 (1.2–1.6) | 0.9 | 1.3 (1.1–1.5) | 1.1 | 0.941 | 0.938 | 0.941 | 1.4 (1.2–1.5) | 1.1 | 1.3 (1.1–1.4) | 1.1 |
| 8th | 0.948 | 0.939 | 0.937 | 1.2 (1.1–1.5) | 1.0 | 1.3 (1.1–1.4) | 0.9 | 0.939 | 0.938 | 0.942 | 1.3 (1.1–1.4) | 0.9 | 1.2 (1.1–1.3) | 0.8 |
| 9th | 0.935 | 0.935 | 0.956 | 1.6 (1.5–1.8) | 1.3 | 1.7 (1.4–1.8) | 1.3 | 0.938 | 0.937 | 0.934 | 1.6 (1.5–1.7) | 1.3 | 1.5 (1.4–1.6) | 1.2 |
| 10th | 0.958 | 0.959 | 0.938 | 0.9 (0.4–0.9) | 0.8 | 0.7 (0.3–0.9) | 1.2 | 0.957 | 0.956 | 0.952 | 0.7 (0.4–0.8) | 1 | 0.6 (0.3–0.7) | 1.1 |
| 11th | 0.963 | 0.952 | 0.936 | 0.6 (0.5–0.7) | 0.2 | 0.6 (0.5–0.8) | 0.2 | 0.953 | 0.955 | 0.934 | 0.6 (0.4–0.7) | 0.3 | 0.4 (0.5–0.7) | 0.3 |
| 12th | 0.955 | 0.947 | 0.946 | 0.8 (0.4–0.9) | 0.1 | 0.5 (0.4–0.7) | 0.2 | 0.948 | 0.945 | 0.936 | 0.5 (0.3–0.8) | 0.2 | 0.4 (0.3–0.6) | 0.2 |
| 13th | 0.945 | 0.943 | 0.945 | 0.6 (0.2–0.5) | 0.2 | 0.5 (0.2–0.4) | 0.1 | 0.945 | 0.944 | 0.936 | 0.4 (0.1–0.5) | 0.3 | 0.3 (0.2–0.6) | 0.1 |
| 14th | 0.946 | 0.947 | 0.946 | 0.5 (0.3–0.7) | 0.3 | 0.5 (0.2–0.7) | 0.3 | 0.947 | 0.946 | 0.936 | 0.5 (0.3–0.6) | 0.1 | 0.3 (0.2–0.7) | 0.3 |
| 15th | 0.956 | 0.953 | 0.935 | 0.7 (0.4–0.8) | 0.4 | 0.5 (0.4–0.6) | 0.4 | 0.955 | 0.953 | 0.935 | 0.5 (0.3–0.7) | 0.3 | 0.4 (0.3–0.8) | 0.5 |
| 16th | 0.960 | 0.954 | 0.936 | 0.6 (0.4–0.8) | 0.3 | 0.6 (0.3–0.8) | 0.5 | 0.954 | 0.954 | 0.934 | 0.5 (0.4–0.7) | 0.3 | 0.4 (0.3–0.8) | 0.6 |
| 17th | 0.956 | 0.953 | 0.937 | 0.6 (0.3–0.7) | 0.1 | 0.4 (0.2–0.6) | 0.2 | 0.956 | 0.954 | 0.938 | 0.5 (0.3–0.6) | 0.2 | 0.3 (0.1–0.5) | 0.3 |
ICC, Type C intraclass correlation coefficients using a consistency definition: the between-measure variance is excluded from the denominator variance. The estimator is the same, whether the interaction effect is present or not. Data in parentheses represent 95% CI. Number 3 represents measurements by observer 3. Number 4 represents repeat measurements by observer 4 at the same session (time-point). Number 3–4 represents repeat measurements by observer 3 and 4 at the same session (time-point).
CoR, coefficient of repeatability; CoR3–4, coefficients of reproducibility; CVw, coefficient of variation. CoR and CVw are expressed as percentages (Coefficients % = Coefficients × 100).