Table 2. Interobserver agreement and intra/interobserver reliability for measuring the HC and the depths of the INS, SF, POF, and CF with ultrasonography.
| Parameters | Mean difference (95% CI) (mm) |
95% LOA (mm) | Intraobserver ICC (95% CI) |
Interobserver ICC (95% CI) |
|---|---|---|---|---|
| HC | −1.70 (−6.04–2.64) | −24.50–21.10 | 0.98 (0.97–0.99) | 0.97 (0.94–0.98) |
| INS | 0.29 (−0.16–0.74) | −2.08–2.66 | 0.96 (0.93−0.98) | 0.95 (0.90–0.98) |
| SF | −0.43 (−0.70 to −0.15) | −2.34–0.54 | 0.98 (0.97–0.99) | 0.97 (0.95–0.98) |
| POF | −0.05 (−0.36–0.26) | −1.45–1.42 | 0.98 (0.97–0.99) | 0.97 (0.95–0.98) |
| CF | −0.30 (−0.70 to −0.10) | −2.40–1.80 | 0.97 (0.95–0.99) | 0.96 (0.92–0.98) |
HC, head circumference; INS, insula; SF, sylvian fissure; POF, parieto-occipital fissure; CF, calcarine fissure; CI, confidence interval; LOA, limits of agreement; ICC, intraclass correlation coefficient.