Table 4.

Results of the reproducibility analytical study.

Expected DOB	Parameter	SD value	95% CI	CV (%)
DOB: 3.3‰
	Reproducibility	0.53	[0.46–0.63]	14.8
	Between days precision	0.54	[0.46–0.60]	14.9
	Between devices precision	0.54	[0.45–0.59]	14.9
	Between operators precision	0.53	[0.44–0.58]	14.8
DOB: 6.4‰
	Reproducibility	0.60	[0.52–0.71]	9.7
	Between days precision	0.62	[0.54–0.68]	10.0
	Between devices precision	0.60	[0.51–0.65]	9.7
	Between operators precision	0.60	[0.51–0.70]	9.7
DOB: 15.5‰
	Reproducibility	0.65	[0.57–0.77]	4.3
	Between days precision	0.65	[0.56–0.72]	4.3
	Between devices precision	0.66	[0.56–0.73]	4.4
	Between operators precision	0.65	[0.55–0.76]	4.3

DOB: delta over baseline; CI: confidence interval; CV: coefficient of variance; SD: standard deviation.