Figure 1.
Map of six clinical research centers in this study.
Figure 2.
Procedures for selection of the study participants.
Table 1.
Analytes and the corresponding thresholds for exclusion of individuals.
Figure 3.
Map of 21 laboratories in China selected to perform reference interval validation.
Table 2.
Characteristics of the reference population enrolled in this study.
Figure 4.
The scatterplots of ALP and albumin distributions as a function of age.
The lines represent the lower (2.5th) and upper (97.5th) reference limits for different age groups in the scatterplots of ALP(A) and albumin(B) with age.
Table 3.
Reference intervals of liver function tests of the adult population in China.
Figure 5.
Comparison of the reference intervals of three systems for liver function tests in Shenyang. (A) ALTnp; (B) ASTnp; (C) ALP; (D) Albumin.
Table 4.
The results of reference interval validation in 21 laboratories.
Table 5.
Comparison of established reference intervals in this study against various sources.