Table 2. Passing-Bablok regression analysis, Bland Altman analysis, and Spearman’s/Pearson’s correlation of electrophoresis fractions quantitated by AGE and CZE in serum from cattle; sample size: n = 55.

Percentage of fraction values shown as median (interquartile range).

Fraction	AGE	CZE	Spearman’s/ Pearson’s correlation	Passing-Bablok regression				Bland Altman bias
	Median (IQR)	Median (IQR)	rs value (p value)	y-intercept	95% CI	Slope	95% CI	Mean (SD)
Albumin (%)	42.9 (4.28)	40.7 (4.17)	0.911 (<0.0001)	0.22	−0.02 to 0.43	0.97	0.90–1.06	−2.4 (1.7)
Alpha 1 (%)	7.0 (2.12)	0.9 (0.3)	0.207 (0.12)	0.74	0.34–0.90a	0.02	0.00–0.08b	−5.9 (1.3)
Alpha 2 (%)	8.0 (1.27)	14.5 (1.95)	0.870 (<0.0001)	2.60	−1.40 to 5.25	1.50	1.16–2.00b	6.7 (1.0)
Beta (%)	10.5 (1.95)	11.3 (1.57)	0.864 (<0.0001)	0.98	−1.95 to 3.37	0.97	0.75–1.25	0.9 (1.1)
Gamma (%)	32.2 (5.75)	32.8 (5.07)	0.977 (<0.0001)	4.12	0.90 to 6.72a	0.90	0.82–1.00	0.8 (1.3)
A/G ratio	0.75 (0.13)	0.69 (0.12)	0.853 (<0.0001)	−0.03	−0.15 to 0.06	1.15	1.00–1.33	−0.07 (0.06)

Notes.

^aConstant error is present.

^bProportional error is present.