Fig 1.
Curves showing +2SD, +SD, median, -SD, and -2SD of serum IGF-I levels in healthy Chinese adults (males, females and total).
Table 1.
Serum IGF-I reference ranges and L, M, and S parameters of IGF-I in healthy male Chinese adults.
Table 2.
Serum IGF-I reference ranges and L, M, and S parameters of IGF-I in healthy female Chinese adults.
Table 3.
Serum IGF-I reference ranges and L, M, and S parameters of IGF-I in all healthy Chinese adults.
Fig 2.
Comparison of the reference ranges for serum IGF-I levels between our study and Elmlinger’s study.
Fig 3.
Comparison of the medians of the serum IGF-I levels between the males and females.
Table 4.
Multiple linear regression model of serum IGF-I and its influencing factors.