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Table 2 General characterization of children studied 60 months in Torreon, Mexico.

From: Follow-up study on lead exposure in children living in a smelter community in northern Mexico

  Time of Follow-up (months)
Variable 0 6 12 60
n 598 517 481 232
Female (%) 47.6 46.5 46.4 47.6
Age (yr)a 7.2 ± 0.33 7.7 ± 0.39 8.2 ± 0.37 12.2 ± 0.34
weight (Kg)a 24.6 ± 5.2 26.8 ± 5.8 28.8 ± 6.5 48.1 ± 12.1
Height (cm)a 120.7 ± 5.3 123.8 ± 5.5 126.9 ± 5.6 151.9 ± 7.0
BMI*b 16.2
(13.0 - 29.2)
16.8
(13.0 - 30.5)
17.1
(13.2 - 30.3)
20.6
(12.2 - 35.8)
BMI % < 1 SD 8.1 8.8 12.2 15.3
BMI % > 1 SD 17.7 11.5 14.8 16.2
  1. a Values are means ± SD.
  2. b Values are medians (range).
  3. * Body Mass Index.