Additional file 1: Figure S1. of Maternal blood cadmium, lead and arsenic levels, nutrient combinations, and offspring birthweight

Dashed black line is the ordinary least square regression fitted line which is flat indicating weak association between logCd and Fe at mean level. Solid red, yellow and blue line are the quantile regression fitted line on quantile of logCd at 90th quantile 50th quantile and 10th quantile respectively. (PNG 61 kb)