Table 2.

Intra-individual Day-to-Day Reproducibility of Gastric Emptying Measurements with Scintigraphy

Measurements	First study	Second study	CCC (95% CI)	p-value for Bland Altman Assessment #
Gastric emptying at 1 hour, %	24 ± 2	24 ± 2	0.79 (0.67,0.87)	0.52
Gastric emptying at 2 hours, %	51 ± 3	52 ± 3	0.83 (0.75, 0.9)	0.13
Gastric emptying at 4 hours, %	83 ± 2	85 ± 2 a	0.54 (0.34, 0.7)	0.32
Gastric emptying t ½, minutes	134 ± 8	128 ± 6	0.79 (0.68, 0.86)	.001

All values are Mean ± SEM unless stated otherwise

^#Test for (Pearson) correlation of differences versus overall mean

^ap = 0.01 versus first study