Table 2.
Agreement between RRRd and RRIP according to the movements and mean RRs. RRRd, respiratory rate measured in the radar; RRIP, respiratory rate measured in the impedance pneumography; RR, respiratory rate; ICC, intraclass correlation coefficient; CCC, concordance correlation coefficient; LOA, limits of agreement; CI, confidence intervals.
| movement |
mean RR of a subject |
|||||
|---|---|---|---|---|---|---|
| agreement parameter | total data | M0 | M1 | M2 | less than 40 min−1 (subject 4,5) | ≥40 min−1 (subject 1,2,3,6) |
| number of cases | 2974 | 425 | 744 | 805 | 1284 | 1690 |
| ICC (95% CI) | 0.846 (0.835–0.856) | 0.893 (0.882–0.903) | 0.833 (0.809–0.853) | 0.749 (0.717–0.778) | 0.721 (0.694–0.746) | 0.831 (0.816–0.846) |
| CCC (95% CI) | 0.846 (0.836–0.856) | 0.893 (0.882–0.903) | 0.833 (0.809–0.853) | 0.754 (0.725–0.782) | 0.725 (0.699–0.748) | 0.831 (0.816–0.845) |
| mean bias (95% CI) | 1.17 (0.96–1.38) | 0.214 (−0.106 to 0.535) | 0.954 (0.473–1.435) | 3.044 (2.587–3.503) | 2.203 (1.840–2.567) | 0.377 (0.084–0.670) |
| LOA | (−10.361), 12.392 | (−11.907), 12.335 | (−12.179), 14.087 | (−12.179), 16.039 | (−10.802), 15.209 | (−11.666), 12.420 |