Fig. 3 | Scientific Reports

Fig. 3

From: Effects of the δ-aminolevulinic acid dehydratase polymorphism rs1800435 on blood lead levels: a new systematic review and meta-analysis

Fig. 3

Forest map for the meta-analysis, grouped by history of lead exposure. (a) High lead exposure. (b) Moderate lead exposure. (c) Low lead exposure. (d) Controls. (e) Uygur population group. (f) Han population group. (g) Non-Hispanic Whites. (h) Non-Hispanic Blacks. (i) Mexican Americans. (j) Amyotrophic lateral sclerosis (ALS) patients. (k) Individuals without ALS. CI: confidence interval, DL: DerSimonian‒Laird.

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