Figure 1.

Bivariate correlations between BMI and Hb (a); serum FER (b); serum sTfR (c); serum RBP (d); serum VitB12 (e) concentrations of female workers employed by a garment factory in Phnom Penh, Cambodia. Correlation coefficients (rho), calculated with non-parametric Spearman’s correlation, include bias corrected and accelerated bootstrap 95% confidence intervals (BCa 95% CI). For illustration purposes, values for serum FER and serum sTfR were log-transformed in the diagrams. Hb: Hemoglobin; FER: Ferritin; sTfR: Soluble transferrin receptor; RBP: Retinol binding protein; VitB12: Vitamin B12; BMI: Body mass index.