Table 5 Summary of method comparison by Passing-Bablok regression and Spearman’s rank correlation for the TgAb methods

No.

Slope

(95% CI)

1.15

(0.77–2.02)

26.56

(16.24–63.2)

0.34

(0.26–0.44)

5.98

(0.32 – 8.12)

1.92

(1.42–2.64)

38.36

(21.22–94.83)

5.45

(3.48–7.52)

7.03

(5.27–10.57)

17.99

(11.86–32.26)

8.33

(5.77–13.33)

y-Intercept (95% CI)

−0.75

(−1.92 to −0.26)

−29.92

(−85.36 to −14.53)

−0.15

(−0.29 to −0.03)

3.7

(0.67–6.39)

−1.9

(−2.96 to −1.17)

−47.31

(−132.72 to −22.98)

1.51

(−1.58 to 4.22)

3.51

(−8.71 to −0.77)

−13.14

(−33.37 to −4.24)

−1.63

(−9.07 to 2.15)

Equation

y = −0.75 + 1.15x

y = −29.92 + 26.56x

y = −0.15 + 0.34x

y = 3.7 + 5.98x

y = −1.9 + 1.92x

y = −47.31 + 38.36x

y = 1.51 + 5.45x

y = −3.51 + 7.03x

y = −13.14 + 17.99x

y = −1.63 + 8.33x

r _s (95% CI)

0.41

(0.24–0.55)

0.17

(−0.01–0.34)

0.56

(0.42–0.67)

0.49

(0.34–0.61)

0.28

(0.1–0.43)

0.19

(0.01–0.35)

0.28

(0.11–0.44)

0.18

(−0.01–0.35)

0.23

(0.05–0.39)

0.35

(0.18–0.49)