Research Article

Interrater and Intrarater Reliability of Electrical Impedance Myography: A Comparison between Large and Small Handheld Electrode Arrays

Table 3

Reliability indices for within-day interrater reliability of both sensors.

Within-day interraterLarge sensorSmall sensor
ICCSEMSRD95% LOAICCSEMSRD95% LOA

50 kHzPhase0.97 (0.92–0.99)0.191.22−6.38–4.170.92 (0.81–0.97)0.592.13−10.44–6.20
Reactance0.90 (0.73–0.96)0.211.27−4.62–3.290.44 (−0.41–0.78)2.624.49−15.97–8.96
Resistance0.99 (0.98–1.00)0.120.96−7.23–4.590.95 (0.88–0.98)1.533.42−30.09–16.03

100 kHzPhase0.98 (0.94–0.99)0.130.99−5.80–3.880.92 (0.81–0.97)0.511.98−9.41–5.69
Reactance0.95 (0.88–0.98)0.110.94−4.00–2.980.67 (0.19–0.87)1.763.68−14.31–8.13
Resistance0.99 (0.98–1.00)0.110.92−6.34–4.150.97 (0.93–0.99)0.822.51−22.12–12.04