-----Original Message-----
From: Peterson, Felecia (CDC/OD/OCSO)
Sent: Wednesday, September 05, 2007 4:31 PM
To: Brown, Mary Jean (CDC/CCEHIP/NCEH)
Cc: NCEH/ATSDR Human Subjects (CDC); Latimer, Annie (CDC/CCEHIP/NCEH); Herbert, Arnetra R. (CDC/CCEHIP/NCEH); Lawton, Kay E. (CDC/CCID/NCZVED)
Subject: 4064: IRB Approval of Continuation of Protocol , (Expedited)
DATE: 9/5/2007
FROM: IRB Administrator
Human Research Protection Office
Office of the Chief Science Officer, OD/CDC
SUBJECT: IRB Approval of Continuation of Protocol #4064, "Public Health Research Using Data Collected for Child Blood Lead Surveillance" (Expedited)
TO: MARYJEAN BROWN, ScD, RN [MJB5]
NCEH/EEHS
CDC's IRB "G" has reviewed and approved your request to continue protocol #4064 for the maximum allowable period of one year and it will expire on 10/23/2008. The protocol was reviewed in accordance with the expedited review process outlined in 45 CFR 46.110(b)(1), Category 8(c). Study is not designed to involve research-related contact with participants (e.g., research using existing records); study activities involve only access to or analysis of data or biological specimens and writing reports.
If other institutions involved in this protocol are being awarded CDC funds through the CDC Procurement and Grants Office (PGO), you are required to send a copy of this IRB approval to the CDC PGO award specialist handling the award. You are also required to verify with the award specialist that the awardee has provided PGO with the required documentation and has approval to begin or continue research involving human subjects as described in this protocol.
As a reminder, the IRB must review and approve all human subjects research protocols at intervals appropriate to the degree of risk, but not less than once per year. There is no grace period beyond one year from the last IRB approval date. It is ultimately your responsibility to submit your research protocol for continuation review and approval by the IRB. Please keep this approval in your protocol file as proof of IRB approval and as a reminder of the expiration date. To avoid lapses in approval of your research and the possible suspension of subject enrollment and/or termination of the protocol, please submit your continuation request at least six weeks before the protocol's expiration date of 10/23/2008.
Any problems of a serious nature should be brought to the immediate attention of the IRB, and any proposed changes to the protocol should be submitted as an amendment to the protocol for IRB approval before they are implemented.
If you have any questions, please contact the Human Research Protection Office at (404) 639-4721 or e-mail: huma@cdc.gov.
Felecia Peterson
cc:
NCEH/ATSDR Human Subjects (CDC)
Annie Latimer
Arnetra Herbert
Kay Lawton
Public Health Research Using Data Collected for Child Blood Lead Surveillance
Protocol
August 29, 2007
Prepared by
Mary Jean Brown, ScD, RN
Branch Chief
LPPB / EEHS / NCEH / CDC
Chinaro M. Kennedy, DrPH, MPH
Team Leader, ESS
LPPB / EEHS / NCEH / CDC
Table of Contents
Project overview
Summary…………………………………………………………….3
Investigators and collaborators………………………………………4
Introduction
A. Background………………………………………………………………6
B. General approach………………………………………………………...7
Methods
Design…………………………………………………………………8
How surveillance system meets objectives………………………8
Audience and stakeholder participation………………………….8
Study population……………………………………………………..8
Sources of study population……………………………………..8
Case definitions………………………………………………….9
Participant inclusion criteria……………………………………..9
Estimated number of participants……………………………….10
Request for waiver for informed consent……………………….10
Variables……………………………………………………………11
Data handling and analysis…………………………………………11
Handling of unexpected or adverse events…………………………12
Limitations………………………………………………………….12
Dissemination and reporting of results……………………………..13
IV References…………………………………………………………………14
Appendix…………………………………………………………………..16
A. Data fields collected by routine surveillance …………………………..16
PROJECT OVERVIEW
Title: Public Health Research Using Data Collected for Child Blood Lead Surveillance
Lead is neurotoxic and particularly harmful to the developing nervous systems of fetuses and young children. Extremely high blood lead levels (BLLs) (i.e., >70 micrograms of lead per deciliter of blood [µg/dL]) can cause severe neurologic problems (e.g., seizure, coma, and death). However, no threshold has been determined regarding lead's harmful effects on children’s learning and behavior, which is observed at lower BLLs. The U.S. Department of Health and Human Services established a national goal to eliminate BLLs >10 µg/dL in children aged <6 years by 2010. CDC’s grants program supports state and local childhood lead poisoning prevention programs (CLPPPs).
All state and local CLPPPs collect surveillance data; some CLPPPs have more than 10 years of data. CLPPPs send their surveillance data to CDC annually. The child blood lead surveillance (CBLS) database that CDC maintains has blood lead test results for approximately 14.5 million children aged < 72 months, the age group which is the focus of the CLPPP. Each child record contains demographic and laboratory test information. Records for children with moderate to high BLLs (≥ 15 g/dL) may include environmental and risk assessment information. These data represent a rich source of data that can be used to examine issues of public health importance. Examples include identifying factors related to decreasing children’s BLLs, such as differences in state and local CLPPPs screening policies, case management and program practices; and the contribution of multiple lead sources on children’s blood lead levels.
This protocol describes our plans to conduct a series of studies over the next five years using existing routinely collected surveillance data to provide information to help reduce children’s BLLs. The purpose of this protocol is to facilitate analysis of child blood lead surveillance data A variety of issues related to preventing elevated BLLs will be examined. Although names and addresses are not included in CDC’s state-collected surveillance data, these data contain unique identification numbers for each child and address that can be used to assess factors that influence changes in children’s BLLs over time. We are requesting a waiver of informed consent because the unique identification numbers could be linked back to the child at the state or local CLPPP, however, it would not be possible to obtain consent on data collected up to ten years ago. The intended uses of the findings from these studies are to share what we learn with CLPPPs and policy makers so that this information can be used to improve screening plans, better direct resources and accelerate progress towards elimination of childhood lead poisoning.
This proposal is intended to serve as a blanket protocol for analysis of existing, routinely collected child blood lead surveillance data to answer questions of public health importance. All such public health research will have an NCEH Principal Investigator (PI). The PI will be responsible for designing the study and overseeing analysis, writing and dissemination of findings. Co-investigators may include scientific staff from the CDC Lead Poisoning Prevention Branch (LPPB) and state and local CLPPP depending on contribution to design, analysis and writing of the study. When there are investigators who are not currently in LPPB and are not CLPPPs, an NCEH PI will be designated.
II. INTRODUCTION
A. Background
Exposure to lead can damage the nervous, hematopoietic, and renal systems (1,2) and is particularly harmful to the developing nervous systems of fetuses and children aged <72 months. Extremely elevated blood lead levels (BLLs) >70 micrograms of lead per deciliter of blood (µg/dL) can cause severe neurologic problems (e.g., seizure, coma, and death) (3). Although severe cases are rare today (4), the threshold for harmful effects of lead remains unknown. Studies since the late 1980s have linked BLLs as low as 10 µg/dL with decreased intelligence and other adverse neurodevelopmental effects (5-8) motivating CDC to lower the level of concern for children aged < 72 months to BLLs 10 µg/Dl in 1991 (9). Subsequent studies provided evidence of adverse effects at even lower levels, <10 µg/dL, among children aged <72 months (10–14).
CDC funds state and local programs to build capacity and develop childhood lead poisoning prevention programs and surveillance activities at the state and local levels. The objectives of these childhood lead poisoning prevention programs (CLPPPs) are to 1) screen infants and children for elevated BLLs; 2) ensure that lead‑poisoned infants and children are referred for medical and environmental intervention; 3) educate the public and health‑care providers about childhood lead poisoning; and 4) carry out prevention activities to reduce children=s exposure to lead. DHHS established a Healthy People 2010 goal to eliminate elevated BLLs (i.e., BLLs 10 μg/dL) among children aged 1 - 5 years (15). Because lead will be eliminated primarily through state and local prevention efforts, state and local data are necessary to evaluate, improve and effectively target prevention activities and to monitor progress at the state and local levels.
B. General Approach
The public health research covered under this protocol will use existing data collected for routine surveillance of children’s BLLs to address specific questions of public health importance that will help achieve the goal of eliminating BLLs 10 g/dL by 2010. We plan to:
1) Describe the state/local burden of BLLs ≥ 10 g/dL among young children;
2) Assess progress toward elimination of BLLs ≥ 10 g/dL among young children;
3) Define characteristics of children with BLLs ≥ 10 g/dL by region and state;
4) Assess associations between case management practices and interventions and children’s BLLs;
5) Improve case management, program practices, and surveillance;
6) Assess the impact of state and local policies on reducing children’s exposure to lead in their environment.
7) Assess environmental inspection and remediation activities;
8) Identify sources of exposure and compare across different regions;
9) Focus national, state and local attention on the goal of eliminating elevated BLLs by 2010.
III. METHODS
A. Design
1. How surveillance system meets objectives
The surveillance data contain demographic and laboratory information on all children reported by CLPPPs. Environmental and risk assessment information is available for children with moderate to high BLLs (15 g/dL). Sequential specimens allow researchers to follow children over time to assess factors associated with changes in BLLs. In addition, knowledge of state/local policies and case management and program practices allows researchers to assess the impact of policies and practices on children’s BLLs.
2. Audience and stakeholder participation
The audience is the childhood lead poisoning prevention programs and others interested in reducing children’s blood lead levels. The stakeholders are the childhood lead poisoning prevention programs.
1. Source of study population
All states with CDC-funded childhood lead poisoning prevention programs must collect surveillance data and submit it to CDC. State and local childhood lead surveillance systems are based on the results of blood lead tests reported to state health departments by private and public laboratories. State and local laws and regulations establish the BLL that is reportable. Core data variables are collected on every child tested depending on the child’s blood lead level. For example, children with blood lead levels < 10 g/dL may only have information on demographics and laboratory tests. Those with blood lead levels ≥ 25 g/dL may have information on address and remediation activities.
When states submit their surveillance data to CDC, they remove child identifiers such as name and address and replace them with unique identification numbers. Because these unique identifiers can be linked back to a child’s name and address at the state health department, CDC will replace the unique identifiers with randomly assigned numbers to protect confidentiality. A list of the fields that CDC collects are shown in Appendix A. The data variables include identifying demographic information, such as the tested child=s race/ethnicity and date of birth, and laboratory information, such as type of specimen (venous or capillary blood), date of specimen collection, and test result.
2. Case definitions
Elevated BLLs (cases) are defined as BLLs ≥ 10 g/dL. A confirmed elevated BLL is one venous blood specimen 10 μg/dL, or two capillary blood specimens 10 μg/dL drawn within 12 weeks of each other. Unconfirmed elevated BLLs are single capillary tests 10 μg/dL. Some researchers may analyze data using confirmed, unconfirmed or both confirmed and unconfirmed elevated BLLs as cases.
3. Participant inclusion criteria
Young children (i.e., < 72 months of age) are the focus of the childhood lead poisoning prevention programs because they are most vulnerable to health damage from lead and there is a national goal to eliminate BLLs ≥ 10 g/dL among children aged < 72 months by 2010.
4. Estimated number of participants
The child blood lead surveillance database that CDC maintains has blood lead test results for 14,468,252 children aged < 72 months. The number of children in this database should allow adequate sample sizes to address various research questions.
5. Request for Waiver for Informed Consent
A waiver of informed consent is requested, under 45 CFR 46.116(d). The large number of potential subjects and the time that has elapsed since the data was collected makes obtaining consent from the potential subjects impracticable. Furthermore, there is no harm to subjects because we will only collect information from existing routine surveillance records and the information collected will not be of a sensitive nature.
(1) The research involves no risk to the subjects. We will analyze information from existing surveillance records. The information collected will include minimal demographic information, dates of laboratory tests and in some cases dates of environmental inspections. A unique identification number for each child is used to link various records: laboratory, environmental investigation, child demographics and address identification number. We will replace these unique identification numbers with randomly generated numbers so records cannot be linked back to a child at the state health department.
(2) This waiver will not adversely affect the rights and welfare of the subjects. The information collected is not of a sensitive nature. Information on individuals will not be released. Only aggregate results will be reported.
(3) Since we will analyze information using existing surveillance records collected several years ago, we may be unable to locate many of the children in the surveillance database. Trying to locate all the children in the surveillance database could delay the study, increase cost and introduce selection bias making the conduct of this study impracticable without the waiver of informed consent.
(4) Our findings will be distributed to the lead poisoning prevention community and stakeholders through reports, scientific publications, and presentations at scientific and grantee meetings.
C. Variables
The list of core variables that state and local CLPPPs submit to CDC is shown in Appendix A. The variables include child demographic information, laboratory test results and test dates, address information and environmental inspection information for some children.
Several different study designs and analyses may be used depending on the specific objectives. Since each child has a unique identifier, it is possible to follow children over time to assess factors that affect changes in BLLs. Descriptive statistics can be calculated to determine the range of blood lead levels. In addition, blood lead levels will be examined by age, sex, race, and geographic location, and look for trends over time. All information will be kept confidential. The dataset that CDC will have for analysis in Atlanta will contain no person identifiers. CDC investigators will make no attempt to link data to identifiers held by the states
The surveillance database that CDC maintains has no children’s names or addresses, however CDC has unique child identification numbers and address identification numbers that the state and local CLPPPs have assigned. Although the state and local CLPPPs remove names and addresses before they send the data to CDC, the identification numbers that CDC has could be used to identify individual children and addresses by linking them with the state and local databases that still contain children’s names and addresses. To prevent linking with individual children and specific addresses, CDC will replace the unique child and address identification numbers with randomly generated numbers. There is always the potential for losing data through disk corruption and to prevent losing data. To ensure that data is not completely lost, copies will be made and kept on CDC premises.
F. Limitations
The surveillance data is not a representative sample. In addition, the surveillance data probably underestimate the number of children tested and the number of children with BLLs ≥ 10 g/dL. Not all children at risk are tested. Testing recommendations and practices vary across the country. Because today most children with elevated BLLs are asymptomatic, the only way to know if a child has an elevated BLL is to perform a blood lead test. Clinicians who rely on risk assessment questions to identify for testing children who are most likely to have elevated BLLs, may miss children who are truly at risk. States that don’t test children at highest risk may have surveillance data that under represents the number of children with elevated BLLs. For some analyses it may not be possible to use certain fields such as race if there is a lot of missing data. Similarly, some states do not submit complete environmental inspection data.
G. Dissemination and reporting of results
Only aggregate findings will be reported. All data sets, summary reports, and papers produced from these studies using surveillance data will not include any individual identifying information. The findings may be published in medical journal, reports or as summaries prepared for the public.
1. Agency for Toxic Substances and Disease Registry. The nature and extent of lead poisoning in children in the United States: a report to Congress. Atlanta, GA: Agency for Toxic Substances and Disease Registry, 1988.
2. Lidsky TI, Schneider JS. Lead neurotoxicity in children: basic mechanisms and clinical correlates. Brain 2003;126:5–19.
3. National Research Council, Board on Environmental Studies and Toxicology. Measuring lead exposure in infants, children, and other sensitive populations. Washington, DC: National Academy Press, 1993.
4. Brody DJ, Pirkle JL, Kramer RA, et al. Blood lead levels in the U.S. population: phase I of the Third National Health and Nutrition Examination Survey (NHANES III, 1988 to 1991). JAMA 1994;272:277–83.
5. Bellinger D, Leviton A, Waternaux C, Neddleman H, Rabinowitz M. Longitudinal analyses of prenatal and postnatal lead exposure and early cognitive development. N Engl J Med 1987;316:1037–43.
6. McMichael AJ, Baghurst PA, Wigg NR, Vimpani GV, Robertson EF, Roberts RJ. Port Pirie cohort study: environmental exposure to lead and children’s abilities at four years. N Engl J Med 1988;319:468–75.
Needleman HL, Gatsonis CA. Low-level lead exposure and the IQ of children. JAMA 1990;263:673–8.
Needleman HL, Schell A, Bellinger D, Leviton A, Allred EN. The long-term effects of exposure to low doses of lead in childhood: an 11-year follow-up report. N Engl J Med 1990;322:83–8.
CDC. Preventing lead poisoning in young children: a statement by the Centers for Disease Control—October 1991. Atlanta GA: US Department of Health and Human Services, Public Health Service, CDC, 1991.
Bellinger DC, Stiles KM, Needleman HL. Low-level lead exposure, intelligence and academic achievement: a long-term follow-up study. Pediatrics 1992;90:855–61.
Dietrich KN, Berger OG, Succop PA, Hammond PB, Bornschein RL. The developmental consequences of low to moderate prenatal and postnatal lead exposure: intellectual attainment in the Cincinnati Lead Study Cohort following school entry. Neurotoxicol Teratol 1993;15:37–44.
Schwartz J. Low-level lead exposure and children’s IQ: a meta-analysis and search for a threshold. Environ Res 1994;65:42–55.
Lanphear BP, Dietrich K, Auinger P, Cox C. Cognitive deficits associated with blood lead concentrations <10 µg/dL in US children and adolescents. Public Health Rep 2000;115:521–9.
Canfield RL, Henderson CR, Cory-Slechta DA, Cox C, Jusko TA, Lanphear BP. Intellectual impairment in children with blood lead concentrations below 10 µg per deciliter. N Engl J Med 2003;348:1517–26.
US Department of Health and Human Services. Healthy people 2010 (conference ed, in 2 vols). Washington, DC: US Department of Health and Human Services, 2000. Available at http://www.healthypeople.gov/.
APPENDIX A
Surveillance Fields CDC Collects from State CLPPPs
Record Type: Basic Format
Field Name |
Valid Values – Description |
fileid |
File identifier for record type.
ADD - address data CHI - child INV - investigation LAB - lab LNK - child to address link |
action |
Database action code.
A - add record C - change/replace D - delete
|
qtr |
Reporting quarter. All annual submissions should be “4" for fourth quarter.
1 - first quarter (1/01/yy - 3/31/yy) 2 - second quarter (4/01/yy - 6/30/yy) 3 - third quarter (7/01/yy - 9/30/yy) 4 - fourth quarter (10/01/yy - 12/31/yy) |
rpt_yr |
Reporting year.
Last two digits of the reporting year. (Must be numeric.) |
pgmid |
Program identifier.
A unique identifier for the CLPPP (or lead database) submitting the data. The first two position must contain the state FIPS (Federal Information Processing Standard) code. The next three positions are preassigned for STELLAR databases and must be unique for each lead database within a state (including databases other than STELLAR). |
child_id |
Child identifier.
A unique identifier for a child; must be numeric and zero-filled. This would generally be a system-assigned sequential number within a database. The identifier is used in relational databases to eliminate redundant data. The child information exists only once, in one physical record, and is linked to related records by the child identifier.
When records from two or more databases are combined, the combination of pgmid and child_id form a unique identifier within the combined database. |
addr_id |
Address identifier.
A unique identifier for an address; must be numeric and zero-filled. This would generally be a system-assigned sequential number within a database. The identifier is used in relational databases to eliminate redundant data. The address information exists only once, in one physical record, and is linked to related records by the identifier.
When records from two or more databases are combined, the combination of pgmid and addr_id form a unique identifier within the combined database. |
all_the_rest |
A variable format area. The contents and format depend on the value in the field fileid. |
Record Type: Address
FileId: ADD
Field Name |
Valid Values -– Description |
|
Basic format as illustrated in Table 1. REQUIRED |
addr_id |
See Table 1. REQUIRED |
city |
City name. |
cnty_fips |
County FIPS code. REQUIRED
Numeric, zero-filled. A file of counties and assigned FIPS codes is available from Lead Poisoning Prevention Branch. |
zip |
Zip code (5+4 format, no dash).
Left justified, blank-fill or zero-fill. |
state |
State abbreviation. |
census |
Census tract.
Left justified, blank-fill. |
renovated |
Residence renovated?
1 - yes, once 2 - no 3 - yes, more than once 9 – unknown |
start_ren |
Date first renovation begun. (CCYYMMDD) Date must be present when renovated field (col 57) is coded 1 or 3. Date must be blank when renovated field is coded 2 or 9. |
comp_ren |
Date latest renovation completed. (CCYYMMDD) Cannot be earlier than start_ren date. Leave blank if renovation is ongoing as of the end of the reporting year. |
Record Type: Child
FileId: CHI
Field Name |
Valid Values – Description |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
Basic format as illustrated in Table 1. REQUIRED |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
child_id |
See Table 1. REQUIRED |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
dob |
Child's date of birth. (CCYYMMDD) REQUIRED Birth date cannot be after the end of the reporting year. Child may not be older than 16 years at the start of the reporting year. |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
gender |
1 – male 2 - female 9 – unknown |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
race
* Multi-racial and Other codes will be eliminated after the 2001 data submission in accordance with OMB guidelines. |
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
sp_ethn |
Race/Ethnicity (this field may be left blank) I - Asian Indian J - Japanese C -Chinese S - Samoan F - Filipino G - Guamian H - Hawaiian M - Hmong K - Korean O - Other V - Vietnamese Z - Unknown
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
ethnic |
1 – Hispanic 2 - Non-hispanic 9 - Unknown |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
chelated |
1 - Yes 2 - No 9 - Unknown |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
chel_type |
1 - Inpatient 3 – Both 2 - Outpatient 9 - Unknown Cannot be blank if chelated field =1. Cannot be 1, 2 or 3 if chelated =2 or 9. |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
fund_source |
1 - Public, includes Medicaid 8 - Other 2 - Private insurance 9 - Unknown 3 - Parent self-pay Cannot be blank if chelated field = 1 or 9. |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
nplsz |
Non-paint lead source - other. 1 - Yes 2 - No 9 - Unknown |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
nplsm |
Non-paint lead source - traditional medicines. 1 - Yes 2 - No 9 - Unknown |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
nplso |
Non-paint lead source – occupation of household member. 1 - Yes 2 - No 9 - Unknown |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
nplsh |
Non-paint lead source - hobby of household member. 1 - Yes 2 - No 9 - Unknown |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
nplsp |
Non-paint lead source - pottery, imported or improperly fired 1 - Yes 2 - No 9 - Unknown |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
nplsc |
Non-paint lead source - child occupation. 1 - Yes 2 - No 9 - Unknown |
Record Type: Investigation
FileId: INV
Field Name |
Valid Values – Description |
|
Basic format as illustrated in Table 1. REQUIRED |
addr_id |
See Table 1. REQUIRED |
date_ref |
Date address referred for investigation. (CCYYMMDD) REQUIRED |
insp_comp |
Date address investigation inspection completed. (CCYYMMDD) May not be prior to date_ref. |
abat_comp |
Date address hazard remediation or abatement completed. (CCYYMMDD) May not be prior to insp_comp. |
year |
Year the dwelling was constructed. (YYYY) Blank if unknown. May not be after reporting year. |
ownership |
1 - Private, owner-occupied 4 - Rental, Section 8 2 - Rental, privately owned 9 - Unknown 3 - Rental, publicly owned |
dwell_type |
1 - Attached, single family 5 - School 2 - Day care center 8 - Other 3 - Detached, single family 9 - Unknown 4 - Multi-unit |
paint_haz |
Dwelling with peeling, chipping, or flaking paint. 1-Yes, interior 4 - No Must be 9 if insp_comp is blank. 2-Yes, exterior 9 - Not inspected 3-Yes, both
|
xrf |
Highest XRF reading in mg/cm2. (000.0) See Note below. |
dust_floor |
Highest floor dust sample reading. (000000.0) See Note below. |
floor_msr |
Unit of measure. U - g/ft2 Cannot be blank if dust_floor >0. P – ppm |
dust_sill |
Highest window sill dust sample reading. (000000.0) See Note below. |
sill_msr |
Unit of measure. U - g/ft2 Cannot be blank if dust_sill >0. P – ppm |
dust_well |
Highest window well dust sample reading. (000000.0) See Note below. |
well_msr |
Unit of measure. U - g/ft2 Cannot be blank if dust_well >0. P – ppm |
paint |
Highest paint chip sample reading. (000000.0) See Note below. |
paint_msr |
Unit of measure. U - g/ft2 Cannot be blank if paint >0. P - ppm M - mg/cm2 |
soil |
Highest soil sample reading in ppm. (000000.0) See Note below. |
water |
Highest water sample reading in ppb. (000000.0) See Note below. |
indhaz |
Industrial hazard near dwelling. 1 - Yes 2 - No 9 - Unknown |
Note: Environmental sample results should all be shown right-justified, zero-filled on the left, and formatted with one decimal position. If no decimal value, format with decimal and zero (000500.0).
Record Type: Lab Results
FileId: LAB
Field Name |
Valid Values – Description |
|
Basic format as illustrated in Table 1. REQUIRED |
child_id |
See Table 1. REQUIRED |
samp_date |
Date sample was drawn. (CCYYMMDD) REQUIRED May not be prior to child date of birth. |
addr_id |
Unique identifier of child's primary address on the date sample was drawn. (See Table 1.) Zero-fill if unknown. |
result |
Sample result measured in g/dL. Whole number, zero-filled. REQUIRED |
fund_source |
Source of funding for the test.
1 - Public, includes Medicaid 2 - Private insurance 3 - Parent self-pay 8 - Other 9 – Unknown |
samp_type |
Sample type. 1 - Venous, blood lead 2 - Capillary, blood lead 9 - Unknown |
test_rsn |
Test reason.
1 - Screening (asymptomatic child withou previous elevated level) 2 - Clinical suspicion of lead poisoning (child symptomatic) 3 - Confirmatory test following elevated value by fingerstick 4 - Follow-up, child with confirmed elevated level 5 - EP, not for lead-screening * 9 - Unknown/other |
lab_type |
Type of laboratory processing sample. 1 - Public health laboratory 2 - Commercial laboratory 9 - Unknown |
scrn_site |
Type of provider ordering test, or screening site.
1 - CLPPP fixed-site specific to lead 2 - Door to door program 3 - Other fixed-site screening program, e.g. WIC 4 - Private health care provider 5 - Referred for confirmation, no screening information 9 - Unknown/other |
medicaid |
1 – Yes 2 - No 9 – Unknown |
samp_anaz_dt |
Date sample analyzed by lab. (CCYYMMDD) May not be prior to samp_date. |
rslt_rpt_dt |
Date results reported to/received by health department. (CCYYMMDD) May not be prior to samp_date. |
Record Type: Child to address link (Optional record type)
FileId: LNK
Field Name |
Valid Values – Description |
|
Basic format as illustrated in Table 1. REQUIRED |
child_id |
Unique child identifier. See Table 1. REQUIRED |
addr_id |
Unique address identifier. See Table 1. REQUIRED |
type_addr |
1 - Primary address 2 - Relocation address 3 - Alternative 4 - Supplemental 9 – Unknown |
first_occ |
Date the child first occupied or began spending time at address. (CCYYMMDD) REQUIRED May not be after the end of the reporting period. |
last_occ |
Date the child moved from or ceased spending time at address. (CCYYMMDD) May not be prior to first_occ date. |
NOTE: There should be only one "open" link record per child (last_occ is blank) where address type code is 1 or 2.
A relocation address is considered a primary address to which a child has been permanently moved to
remove them from a hazardous environment.
| File Type | application/msword |
| File Title | Public Health Research Using Data Collected for Child Blood Lead Surveillance |
| Author | gjn5 |
| Last Modified By | gjn5 |
| File Modified | 2008-01-16 |
| File Created | 2008-01-16 |