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Table 2 Environmental characteristics

From: Environmental assessment of pediatric Lead exposure in Tehran; a prospective cross-sectional study

Environmental characteristics N Median BLL (IQR) P-value
Reconstruction in 6 month no 29 8.5 (5.7–23.6) 0.326
yes 1 25 (NA)
Building painting in 6 month no 26 8.7 (5.8–23.6) 0.807
yes 4 15.1 (5.5–28.9)
Industrial zone no 15 6.2 (5.3–12.9) 0.038
yes 15 16.4 (6.8–27.1)
Building’s paint type Oil 26 8.8 (5.8–24.2) 0.737
Plastic (acrylic) 4 7.5 (5.3–25.1)
Building’s Pipe material Metal 14 12.1 (6–25.9) 0.352
Non-metal 15 6.8 (5.5–12.9)
both 1 25 (NA)
Habit of excessive Spice consumption in family No 28 9 (5.9–24.7) 0.157
Yes 2 5.7 (NA)
both 1 25 (NA)
Spice Packaging Hygiene Pack 6 24.1 (6.7–26.9) 0.280
Bulk-sale 16 7.9 (5.6–14.5)
Both 8 7.6 (5.2–28.9)
Residence duration 0–3 y 18 8.7 (6.1–24.4) 0.990
4–6 y 5 6.2 (5.5–44.1)
>  7 y 7 11.2 (5.2–25)