Non-HDL-cholesterol as valid surrogate to apolipoprotein B100 measurement in diabetes: Discriminant Ratio and unbiased equivalence

Table 2 Tests precision and discrimination expressed as underlying between-subject Standard Deviation (SD_U), global within-subject Standard Deviation (SD_W), and test Discriminant Ratio (DR)

	SD_U	SD_W	DR	[CIs]
T1DM (n = 23)
non-HDL-C	27.8	14.9	1.87	[1.30 - 2.78]
apoB₁₀₀	21.1	10.2	2.08	[1.48 - 3.06]
T2DM (n = 22)
non-HDL-C	36.0	23.5	1.53	[1.00 - 2.36]
apoB₁₀₀	21.1	14.0	1.51	[0.99 - 2.34]
All patients (n = 45)
non-HDL-C	34.4	19.6	1.76	[1.35 - 2.33]
apoB₁₀₀	22.3	12.2	1.83	[1.41 - 2.42]

Values from log results of individual tests and means of their duplicates in 45 patients. Confidence intervals [CIs] for DR's [2.5-97.5%] in square brackets. apoB₁₀₀: apolipoprotein B₁₀₀; C: cholesterol; HDL: high density lipoprotein; SD: standard deviation; T1DM and T2DM : type 1 and type 2 diabetes mellitus.

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