Subsample (N=50) of data on Blood Lead Levels from the succimer
arm of the Treatment of Lead Exposed Children (TLC) Trial.


Source: Data courtesy of Dr. George G. Rhoads (Chair, TLC Steering Committee).

Reference: Treatment of Lead-exposed Children (TLC) Trial Group. (2000).
Safety and Efficacy of Succimer in Toddlers with Blood Lead Levels of 
20-44 µg/dL.  Pediatric Research, 48, 593-599.


Description: 

The Treatment of Lead-Exposed Children (TLC) trial was a placebo-controlled, 
randomized study of succimer (a chelating agent) in children with blood 
lead levels of 20-44 micrograms/dL.
These data consist of four repeated measurements of blood lead 
levels obtained at baseline (or week 0), week 1, week 4, and 
week 6 on 50 children who were randomly assigned to chelation treatment 
with succimer.


Variable List: 

Each row of the data set contains the following 5 variables:

ID, Lead Level Week 0, Lead Level Week 1, Lead Level Week 4, 
Lead Level Week 6. 

    1     26.5    14.8    19.5    21.0
    2     25.8    23.0    19.1    23.2
    3     20.4     2.8     3.2     9.4
    4     20.4     5.4     4.5    11.9
    5     24.8    23.1    24.6    30.9
    6     27.9     6.3    18.5    16.3
    7     35.3    25.5    26.3    30.3
    8     28.6    15.8    22.9    25.9
    9     29.6    15.8    23.7    23.4
   10     21.5     6.5     7.1    16.0
   11     21.8    12.0    16.8    19.2
   12     23.0     4.2     4.0    16.2
   13     22.2    11.5     9.5    14.5
   14     25.0     3.9    12.8    12.7
   15     26.0    21.4    21.0    22.4
   16     19.7    13.2    14.6    11.6
   17     29.6    17.5    21.0    24.2
   18     24.4    16.4    11.6    16.6
   19     33.7    14.9    14.5    63.9
   20     26.7     6.4     5.1    15.1
   21     26.8    20.4    19.3    23.8
   22     20.2    10.6     9.0    16.0
   23     20.2    17.5    17.4    18.6
   24     24.5    10.0    15.6    15.2
   25     27.1    14.9    18.1    21.3
   26     34.7    39.0    28.8    34.7
   27     24.5     5.1     8.2    23.6
   28     27.7     4.0     4.2    11.7
   29     24.3    24.3    18.4    27.8
   30     36.6    23.3    40.4    39.3
   31     34.0    10.7    12.6    21.2
   32     32.6    19.0    16.3    18.6
   33     29.2     9.2     8.3    18.4
   34     26.4    15.3    24.6    32.4
   35     21.8    10.6    14.4    18.7
   36     21.1     5.6     7.3    12.3
   37     22.1    21.0     8.6    24.6
   38     28.9    12.5    16.7    22.2
   39     19.8    11.6    13.0    23.1
   40     23.5     7.9    12.4    18.9
   41     29.1    16.8    15.1    18.8
   42     30.3     3.5     3.0    11.5
   43     30.6    28.2    27.0    25.5
   44     22.4     7.1    17.2    18.7
   45     31.2    10.8    19.8    22.2
   46     31.4     3.9     7.0    17.8
   47     41.1    15.1    10.9    27.1
   48     29.4    22.1    25.3     4.1
   49     21.9     7.6    10.8    13.0
   50     20.7     8.1    25.7    12.3