Table 1 Timeline of B-Pb (μg/dl), in lead exposed children during 60 months of follow-up by school.
From: Follow-up study on lead exposure in children living in a smelter community in northern Mexico
Time of Follow-up (months). | |||||
|---|---|---|---|---|---|
School number. | 0 | 6 | 12 | 60 | |
1 | n | 79 | 65 | 59 | 29 |
Median | 7.52 | 6.95 | 6.10 | 3.68 | |
Minimum | 1.99 | 1.86 | 1.7 | 2.3 | |
Maximum | 34.62 | 27.0 | 25.60 | 10.4 | |
2 | n | 71 | 57 | 51 | 34 |
Median | 13.94 | 13.20 | 12.20 | 4.75 | |
Minimum | 5.38 | 5.35 | 4.70 | 2.02 | |
Maximum | 43.80 | 41.45 | 35.80 | 30.30 | |
3 | n | 97 | 83 | 73 | 15 |
Median | 9.99 | 8.70 | 9.30 | 4.53 | |
Minimum | 3.90 | 3.85 | 3.95 | 1.78 | |
Maximum | 41.93 | 40.6 | 34.35 | 7.2 | |
4 | n | 51 | 45 | 43 | 18 |
Median | 12.55 | 10.40 | 9.55 | 5.48 | |
Minimum | 5.83 | 4.05 | 4.15 | 3.48 | |
Maximum | 34.72 | 26.10 | 25.90 | 12.58 | |
5 | n | 58 | 51 | 50 | 32 |
Median | 8.68 | 6.40 | 7.30 | 5.49 | |
Minimum | 3.0 | 2.90 | 3.10 | 3.36 | |
Maximum | 20.05 | 16.60 | 18.45 | 8.7 | |
6 | n | 70 | 58 | 55 | 14 |
Median | 14.20 | 11.10 | 12.55 | 3.27 | |
Minimum | 3.30 | 3.80 | 3.30 | 1.30 | |
Maximum | 41.50 | 36.75 | 35.80 | 9.13 | |
7 | n | 52 | 51 | 47 | 27 |
Median | 10.70 | 8.55 | 8.20 | 4.08 | |
Minimum | 4.40 | 2.90 | 4.25 | 2.35 | |
Maximum | 22.20 | 18.15 | 17.65 | 7.44 | |
8 | n | 72 | 66 | 66 | 40 |
Median | 9.10 | 8.68 | 8.18 | 3.30 | |
Minimum | 3.70 | 3.45 | 4.05 | 1.43 | |
Maximum | 17.30 | 16.0 | 13.95 | 7.67 | |
9 | n | 48 | 41 | 37 | 23 |
Median | 7.25 | 5.85 | 5.80 | 4.58 | |
Minimum | 2.30 | 2.50 | 2.40 | 2.07 | |
Maximum | 16.90 | 14.90 | 16.45 | 12.70 | |
Total | n | 598 | 517 | 481 | 232 |
Median | 10.12 | 8.75 | 8.30 | 4.40 | |
Minimum | 1.9 | 1.85 | 1.7 | 1.30 | |
Maximum | 43.8 | 41.45 | 35.8 | 30.3 | |