Standard Blood Lead Data set 1991-99
Current at 12/1/00
Notes:
1) Data set includes only children less than 60 months at the date of sample collection [i.e.: >0 and < 5 years old, (some may be = 0 due to rounding and very early i.e. 1st month, blood tests)].
2) Does not include cord blood samples.
3) Multiple samples returned in a calendar year by any one child are averaged.
4) 1999 data set extracted from ELC data base on 11/1/00, and appended to pre-existing 1991-98 data set.
5) Note that NHMRC guidelines in response to individual children are employed here:
· below 10 mg/dL is the NHMRC target range for all children.
· greater than or equal to 15 mg/dL is the NHMRC intervention threshold.
· greater than or equal to 25 mg/dL is considered a high level.
Summary data tables and charts follow.
Annual Number of Children Tested
by Blood Lead Level Category
|
Year
|
|||||||||
|
PbB
(mg/dL)
|
1991
|
1992
|
1993
|
1994
|
1995
|
1996
|
1997
|
1998
|
1999
|
|
<
10 ug/dL
|
114
|
139
|
174
|
394
|
439
|
356
|
516
|
567
|
501
|
|
10
- 14 ug/dL
|
191
|
237
|
167
|
363
|
265
|
179
|
238
|
248
|
199
|
|
15
- 24 ug/dL
|
308
|
225
|
171
|
263
|
183
|
133
|
129
|
111
|
99
|
|
>25
ug/dL
|
141
|
70
|
70
|
76
|
38
|
34
|
22
|
25
|
14
|
|
Grand
Total
|
754
|
671
|
582
|
1096
|
925
|
702
|
905
|
951
|
813
|
Annual Proportional Distribution of Children Tested
by Blood Lead Level Category
|
Year
|
|||||||||
|
PbB
(mg/dL)
|
1991
|
1992
|
1993
|
1994
|
1995
|
1996
|
1997
|
1998
|
1999
|
|
<10
ug/dL
|
15%
|
21%
|
30%
|
36%
|
47%
|
51%
|
57%
|
60%
|
62%
|
|
10
- 14 ug/dL
|
25%
|
35%
|
29%
|
33%
|
29%
|
25%
|
26%
|
26%
|
24%
|
|
15
- 24 ug/dL
|
41%
|
34%
|
29%
|
24%
|
20%
|
19%
|
14%
|
12%
|
12%
|
|
>
25 ug/dL
|
19%
|
10%
|
12%
|
7%
|
4%
|
5%
|
2%
|
3%
|
2%
|
Mean Annual Blood Lead Level
|
Year
|
|||||||||
|
Satistic
|
1991
|
1992
|
1993
|
1994
|
1995
|
1996
|
1997
|
1998
|
1999
|
|
Arithmetic
Mean (ug/dL)
|
18.1
|
15.2
|
15.0
|
12.9
|
11.3
|
11.1
|
9.9
|
9.4
|
9.3
|
|
Geometric
Mean (ug/dL)
|
16.1
|
13.5
|
12.9
|
11.4
|
9.7
|
9.4
|
8.5
|
8.1
|
8.0
|

Distribution of 1999 Blood Lead Levels
