Canadian Health Measures Survey (CHMS) Cycle 1 Wave 3 Derived Variable (DV) Specifications

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Table of contents

Introduction

Urine tests (29 DVs)

  1. LABD24D – 2,4-D standardized with urine creatinine
  2. LABD24DC – 2,4-dichlorophenol standardized with urine creatinine
  3. LABD3PBA – Urine 3-PBA standardized with urine creatinine
  4. LABD4F3P – Urine 4-F-3-PBA standardized with urine creatinine
  5. LABDBPA – Bisphenol A standardized with urine creatinine
  6. LABDCDBC – Urine cis-DBCA standardized with urine creatinine
  7. LABDCDCC – Urine cis-DCCA standardized with urine creatinine
  8. LABDCOT – Cotinine standardized with urine creatinine
  9. LABDDEDT – Urine Diethyldithiophosphate (DEDTP) standardized with urine creatinine
  10. LABDDEP – Urine Diethylphosphate (DEP) standardized with urine creatinine
  11. LABDDETP – Urine Diethylthiophosphate (DETP) standardized with urine creatinine
  12. LABDDMDT – Urine Dimethyldithiophosphate (DMDTP) standardized with urine creatinine
  13. LABDDMP – Urine Dimethylphosphate (DMP) standardized with urine creatinine
  14. LABDMTP – Urine Dimethylthiophosphate (DMTP) standardized with urine creatinine
  15. LABDMCR – Microalbumin-creatine ratio
  16. LABDTDCC – Urine trans-DCCA standardized with urine creatinine
  17. LABDUAS – Urine total arsenic standardized with urine creatinine
  18. LABDUCD – Urine cadmium standardized with urine creatinine
  19. LABDUCU – Urine copper standardized with urine creatinine
  20. LABDUHG – Urine mercury standardized with urine creatinine
  21. LABDUMN – Urine manganese standardized with urine creatinine
  22. LABDUMO – Urine molybdenum standardized with urine creatinine
  23. LABDUNI – Urine nickel standardized with urine creatinine
  24. LABDUPB – Urine lead standardized with urine creatinine
  25. LABDUSB – Urine antimony standardized with urine creatinine
  26. LABDUSE – Urine selenium standardized with urine creatinine
  27. LABDUU – Urine uranium standardized with urine creatinine
  28. LABDUV – Urine vanadium standardized with urine creatinine
  29. LABDUZN – Urine zinc standardized with urine creatinine

Introduction

The Canadian Health Measures Survey (CHMS) is the most extensive national survey on physical health measures ever conducted in the country. Data collection consists of two steps, a personal interview at the respondent’s household followed later by a visit to the CHMS mobile clinic where physical measurements and blood and urine samples are taken.

The CHMS captures a broad portrait of the health of Canadians by gathering baseline data on a variety of concerns, including cardiovascular health, nutritional status, chronic diseases and physical activity, as well as exposure to infectious diseases and environmental contaminants. The survey collects health information that can’t be otherwise captured, or that may be inaccurately reported, through self-report questionnaires or health care records.

The CHMS is conducted by Statistics Canada in partnership with Health Canada and the Public Health Agency of Canada.

During CHMS cycle 1, physical measurements were collected in 15 sites across Canada from about 5,600 people representing the Canadian population aged 6 to 79. Collection sites were located in five provinces: New Brunswick, Quebec, Ontario, Alberta and British Columbia. Collection started in March 2007 and continued until February 2009. Data are representative at the national level.

This publication is part of the release of CHMS data beginning in January 2010. It provides information on the composition of the derived variables created both during and after data processing for the Wave 3 release.  Additional volumes will be provided for future releases.

For additional information about the Canadian Health Measures Survey:
Toll-free number: 1-888-253-1087
E-mail: chms-ecms@statcan.gc.ca
Telecommunication device for
the hearing impaired:  1-866-753-7083
Statistics Canada website:   www.statcan.gc.ca/chms

Urine tests (29 DVs)

1. LABD24D – 2,4-D standardized with urine creatinine

Variable name:
LABD24D

Based on:
LAB_24D, LAB_UCRE

Description:
This variable indicates the concentration of 2,4-D (standardized with creatinine) in the urine sample of the respondent and is measured in micrograms per gram (µg/g).  2,4-D is standardized with creatinine in order to correct for urine dilution.

Note:
Created in the lab post-verify process.  BD represents data that is below the limit of detection and is replaced in processing with a code (i.e. 99.99995).

Table 1
LABD24D Specifications
Value Condition(s) Description Notes
Round(LAB_24D / (LAB_UCRE /
8.84), .5)		 LAB_24D < BD and
LAB_UCRE < BD		 2,4-D standardized with urine creatinine Rounded to 5 decimal places
99.99996 LAB_24D = NA Population exclusions NA
99.99999 Else   NS

2. LABD24DC – 2,4-dichlorophenol standardized with urine creatinine

Variable name:
LABD24DC

Based on:
LAB_24DC, LAB_UCRE

Description:
This variable indicates the concentration of 2,4-dichlorophenol (standardized with creatinine) in the urine sample of the respondent, and is measured in micrograms per gram (µg/g).  2,4-dichlorophenol is standardized with creatinine in order to correct for urine dilution.

Note:
Created in the lab post-verify process.  BD represents data that is below the limit of detection and is replaced in processing with a code (i.e. 999.9995).

Table 2
LABD24DC Specifications
Value Condition(s) Description Notes
Round(LAB_24DC /
(LAB_UCRE /
8.84), .4)		 LAB_24DC < BD and
LAB_UCRE < BD		 2,4-dichlorophenol standardized with urine creatinine Rounded to 4 decimal places
999.9996 LAB_24DC = NA Population exclusions NA
999.9999 Else   NS

3. LABD3PBA – 3-PBA standardized with urine creatinine

Variable name:
LABD3PBA

Based on:
LAB_3PBA, LAB_UCRE

Description:
This variable indicates the concentration of 3-PBA (standardized with creatinine) in the urine sample of the respondent and is measured in micrograms per gram (µg/g).  3-PBA is standardized with creatinine in order to correct for urine dilution.

Note:
Created in the lab post-verify process.  BD represents data that is below the limit of detection and is replaced in processing with a code (i.e. 999.99995).

Table 3
LABD3PBA Specifications
Value Condition(s) Description Notes
Round(LAB_3PBA / (LAB_UCRE /
8.84), .5)		 LAB_3PBA < BD and
LAB_UCRE < BD		 3-PBA standardized with urine creatinine Rounded to 5 decimal places
999.99996 LAB_3PBA = NA Population exclusions NA
999.99999 Else   NS

4. LABD4F3P – 4-F-3-PBA standardized with urine creatinine

Variable name:
LABD4F3P

Based on:
LAB_4F3P, LAB_UCRE

Description:
This variable indicates the concentration of 4-F-3-PBA (standardized with creatinine ) in the urine sample of the respondent and is measured in micrograms per gram (µg/g).  4-F-3-PBA is standardized with creatinine in order to correct for urine dilution.

Note:
Created in the lab post-verify process.  BD represents data that is below the limit of detection and is replaced in processing with a code (i.e. 99.999995).

Table 4
LABD4F3P Specifications
Value Condition(s) Description Notes
Round(LAB_4F3P / (LAB_UCRE /
8.84), .6)		 LAB_4F3P < BD and
LAB_UCRE < BD		 4-F-3-PBA standardized with urine creatinine Rounded to 6 decimal places
99.999996 LAB_4F3P = NA Population exclusions NA
99.999999 Else   NS

5. LABDBPA – Bisphenol A standardized with urine creatinine

Variable name:
LABDBPA

Based on:
LAB_BPA, LAB_UCRE

Description:
This variable indicates the concentration of Bisphenol A (standardized with creatinine ) in the urine sample of the respondent and is measured in micrograms per gram (µg/g).  Bisphenol A is standardized with creatinine in order to correct for urine dilution.

Note:
Created in the lab post-verify process.  BD represents data that is below the limit of detection and is replaced in processing with a code (i.e. 999.9995).

Table 5
LABDBPA Specifications
Value Condition(s) Description Notes
Round(LAB_BPA / (LAB_UCRE /
8.84), .4)		 LAB_BPA < BD and
LAB_UCRE < BD		 Bisphenol A standardized with urine creatinine Rounded to 4 decimal places
999.9996 LAB_BPA = NA Population exclusions NA
999.9999 Else   NS

6. LABDCDBC – cis-DBCA standardized with urine creatinine

Variable name:
LABDCDBC

Based on:
LAB_CDBC, LAB_UCRE

Description:
This variable indicates the concentration of cis-DBCA (standardized with creatinine ) in the urine sample of the respondent and is measured in micrograms per gram (µg/g).  cis-DBCA is standardized with creatinine in order to correct for urine dilution.

Note:
Created in the lab post-verify process.  BD represents data that is below the limit of detection and is replaced in processing with a code (i.e. 9.999995).

Table 6
LABDCDBC Specifications
Value Condition(s) Description Notes
Round(LAB_CDBC / (LAB_UCRE /
8.84), .6)		 LAB_CDBC < BD and
LAB_UCRE < BD		 cis-DBCA standardized with urine creatinine Rounded to 6 decimal places
9.999996 LAB_CDBC = NA Population exclusions NA
9.999999 Else   NS

7. LABDCDCC – cis-DCCA standardized with urine creatinine

Variable name:
LABDCDCC

Based on:
LAB_CDCC, LAB_UCRE

Description:
This variable indicates the concentration of cis-DCCA (standardized with creatinine) in the urine sample of the respondent and is measured in micrograms per gram (µg/g).  cis-DCCA is standardized with creatinine in order to correct for urine dilution.

Note:
Created in the lab post-verify process.  BD represents data that is below the limit of detection and is replaced in processing with a code (i.e. 99.999995).

Table 7
LABDCDCC Specifications
Value Condition(s) Description Notes
Round(LAB_CDCC / (LAB_UCRE /
8.84), .6)		 LAB_CDCC < BD and
LAB_UCRE < BD		 cis-DCCA standardized with urine creatinine Rounded to 6 decimal places
99.999996 LAB_CDCC = NA Population exclusions NA
99.999999 Else   NS

8. LABDCOT – Cotinine standardized with urine creatinine

Variable name:
LABDCOT

Based on:
LAB_COT, LAB_UCRE

Description:
This variable indicates the concentration of free cotinine (standardized with creatinine) in the urine sample of the respondent and is measured in micrograms per gram (µg/g).  Cotinine is standardized with creatinine in order to correct for urine dilution in spot urine samples.

Note:
Created in the lab post-verify process.  BD represents data that is below the limit of detection and is replaced in processing with a code (i.e. 99999.9995).

Table 8
LABDCOT Specifications
Value Condition(s) Description Notes
Round(LAB_COT / (LAB_UCRE /
8.84), .4)		 LAB_COT < BD and
LAB_UCRE < BD		 Cotinine standardized with urine creatinine Rounded to 4 decimal places
99999.9996 LAB_COT = NA Population exclusions NA
99999.9999 Else   NS

9. LABDDEDT – DEDTP standardized with urine creatinine

Variable name:
LABDDEDT

Based on:
LAB_DEDT, LAB_UCRE

Description:
This variable indicates the concentration of DEDTP (standardized with creatinine) in the urine sample of the respondent and is measured in micrograms per gram (µg/g).  DEDTP is standardized with creatinine in order to correct for urine dilution.

Note:
Created in the lab post-verify process.  BD represents data that is below the limit of detection and is replaced in processing with a code (i.e. 99.9995).

Table 9
LABDDEDT Specifications
Value Condition(s) Description Notes
Round(LAB_DEDT / (LAB_UCRE /
8.84), .4)		 LAB_DEDT < BD and
LAB_UCRE < BD		 DEDTP standardized with urine creatinine Rounded to 4 decimal places
99.9996 LAB_DEDT = NA Population exclusions NA
99.9999 Else   NS

10. LABDDEP – DEP standardized with urine creatinine

Variable name:
LABDDEP

Based on:
LAB_DEP, LAB_UCRE

Description:
This variable indicates the concentration of DEP (standardized with creatinine) in the urine sample of the respondent and is measured in micrograms per gram (µg/g).  DEP is standardized with creatinine in order to correct for urine dilution.

Note:
Created in the lab post-verify process.  BD represents data that is below the limit of detection and is replaced in processing with a code (i.e. 999.9995).

Table 10
LABDDEP Specifications
Value Condition(s) Description Notes
Round(LAB_DEP / (LAB_UCRE /
8.84), .4)		 LAB_DEP < BD and
LAB_UCRE < BD		 DEP standardized with urine creatinine Rounded to 4 decimal places
999.9996 LAB_DEP = NA Population exclusions NA
999.9999 Else   NS

11. LABDDETP – DETP standardized with urine creatinine

Variable name:
LABDDETP

Based on:
LAB_DETP, LAB_UCRE

Description:
This variable indicates the concentration of DETP (standardized with creatinine) in the urine sample of the respondent and is measured in micrograms per gram (µg/g).  DETP is standardized with creatinine in order to correct for urine dilution.

Note:
Created in the lab post-verify process.  BD represents data that is below the limit of detection and is replaced in processing with a code (i.e. 999.9995).

Table 11
LABDDETP Specifications
Value Condition(s) Description Notes
Round(LAB_DETP / (LAB_UCRE /
8.84), .4)		 LAB_DETP < BD and
LAB_UCRE < BD		 DETP standardized with urine creatinine Rounded to 4 decimal places
999.9996 LAB_DETP = NA Population exclusions NA
999.9999 Else   NS

12. LABDDMDT – DMDTP standardized with urine creatinine

Variable name:
LABDDMDT

Based on:
LAB_DMDT, LAB_UCRE

Description:
This variable indicates the concentration of DMDTP (standardized with creatinine) in the urine sample of the respondent and is measured in micrograms per gram (µg/g).  DMDTP is standardized with creatinine in order to correct for urine dilution.

Note:
Created in the lab post-verify process.  BD represents data that is below the limit of detection and is replaced in processing with a code (i.e. 999.99995).

Table 12
LABDDMDT Specifications
Value Condition(s) Description Notes
Round(LAB_DMDT / (LAB_UCRE /
8.84), .5)		 LAB_DMDT < BD and
LAB_UCRE < BD		 DMDTP standardized with urine creatinine Rounded to 5 decimal places
999.99996 LAB_DMDT = NA Population exclusions NA
999.99999 Else   NS

13. LABDDMP – DMP standardized with urine creatinine

Variable name:
LABDDMP

Based on:
LAB_DMP, LAB_UCRE

Description:
This variable indicates the concentration of DMP (standardized with creatinine) in the urine sample of the respondent and is measured in micrograms per gram (µg/g).  DMP is standardized with creatinine in order to correct for urine dilution.

Note:
Created in the lab post-verify process.  BD represents data that is below the limit of detection and is replaced in processing with a code (i.e. 999.9995).

Table 13
LABDDMP Specifications
Value Condition(s) Description Notes
Round(LAB_DMP / (LAB_UCRE /
8.84), .4)		 LAB_DMP < BD and
LAB_UCRE < BD		 DMP standardized with urine creatinine Rounded to 4 decimal places
999.9996 LAB_DMP = NA Population exclusions NA
999.9999 Else   NS

14. LABDMTP –DMTP standardized with urine creatinine

Variable name:
LABDDMTP

Based on:
LAB_DMTP, LAB_UCRE

Description:
This variable indicates the concentration of DMTP (standardized with creatinine) in the urine sample of the respondent and is measured in micrograms per gram (µg/g).  DMTP is standardized with creatinine in order to correct for urine dilution.

Note:
Created in the lab post-verify process.  BD represents data that is below the limit of detection and is replaced in processing with a code (i.e. 9999.9995).

Table 14
LABDDMTP Specifications
Value Condition(s) Description Notes
Round(LAB_DMTP / (LAB_UCRE /
8.84), .4)		 LAB_DMTP < BD and
LAB_UCRE < BD		 DMTP standardized with urine creatinine Rounded to 4 decimal places
9999.9996 LAB_DMTP = NA Population exclusions NA
9999.9999 Else   NS

15. LABDMCR – Microalbumin / creatinine ratio

Variable name:
LABDMCR

Based on:
LAB_MALB, LAB_UCRE

Description:
This variable indicates the ratio of microalbumin to creatinine in the urine sample of the respondent and is measured in milligrams per millimole (mg/mmol).

Note:
Created in the lab post-verify process.  BD represents data that is below the limit of detection and is replaced in processing with a code (i.e. 9999.95).

Table 15
LABDMCR Specifications
Value Condition(s) Description Notes
Round(((LAB_MALB * 1000) /
LAB_UCRE), .2)		 LAB_MALB < BD and
LAB_UCRE < BD		 Microalbumin/creatinine ratio Rounded to 2 decimal places
9999.96 LAB_MALB = NA and
LAB_UCRE = NA		 Population exclusions NA
9999.99 Else   NS

16. LABDTDCC – trans-DCCA standardized with urine creatinine

Variable name:
LABDTDCC

Based on:
LAB_TDCC, LAB_UCRE

Description:
This variable indicates the concentration of trans-DCCA (standardized with creatinine) in the urine sample of the respondent and is measured in micrograms per gram (µg/g).  trans-DCCA is standardized with creatinine in order to correct for urine dilution.

Note:
Created in the lab post-verify process.  BD represents data that is below the limit of detection and is replaced in processing with a code (i.e. 99.999995).

Table 16
LABDTDCC Specifications
Value Condition(s) Description Notes
Round(LAB_TDCC / (LAB_UCRE /
8.84), .6)		 LAB_TDCC < BD and
LAB_UCRE < BD		 trans-DCCA standardized with urine creatinine Rounded to 6 decimal places
99.999996 LAB_TDCC = NA Population exclusions NA
99.999999 Else   NS

17. LABDUAS – Total arsenic standardized with urine creatinine

Variable name:
LABDUAS

Based on:
LAB_UAS, LAB_UCRE

Description:
This variable indicates the concentration of total arsenic (standardized with creatinine) in the urine sample of the respondent and is measured in micromoles per millimole (µmol/mmol).  Total arsenic is standardized with creatinine in order to correct for urine dilution.

Note:
Created in the lab post-verify process.  BD represents data that is below the limit of detection and is replaced in processing with a code (i.e. 9.999995).

Table 17
LABDUAS Specifications
Value Condition(s) Description Notes
Round(LAB_UAS / (LAB_UCRE /
8.84), .6)		 LAB_UAS < BD and
LAB_UCRE < BD		 Total arsenic standardized with urine creatinine Rounded to 6 decimal places
9.999996 LAB_UAS = NA Population exclusions NA
9.999999 Else   NS

18. LABDUCD – Cadmium standardized with urine creatinine

Variable name:
LABDUCD

Based on:
LAB_UCD, LAB_UCRE

Description:
This variable indicates the concentration of cadmium (standardized with creatinine) in the urine sample of the respondent and is measured in nanomoles per millimole (nmol/mmol).  Cadmium is standardized with creatinine in order to correct for urine dilution.

Note:
Created in the lab post-verify process.  BD represents data that is below the limit of detection and is replaced in processing with a code (i.e. 99.99995).

Table 18
LABDUCD Specifications
Value Condition(s) Description Notes
Round(LAB_UCD / (LAB_UCRE /
8.84), .5)		 LAB_UCD < BD and
LAB_UCRE < BD		 Cadmium standardized with urine creatinine Rounded to 5 decimal places
99.99996 LAB_UCD = NA Population exclusions NA
99.99999 Else   NS

19. LABDUCU – Copper standardized with urine creatinine

Variable name:
LABDUCU

Based on:
LAB_UCU, LAB_UCRE

Description:
This variable indicates the concentration of copper (standardized with creatinine) in the urine sample of the respondent and is measured in micromoles per millimole (µmol/mmol).  Copper is standardized with creatinine in order to correct for urine dilution.

Note:
Created in the lab post-verify process.  BD represents data that is below the limit of detection and is replaced in processing with a code (i.e. 9.9999995).

Table 19
LABDUCU Specifications
Value Condition(s) Description Notes
Round(LAB_UCU / (LAB_UCRE /
8.84), .7)		 LAB_UCU < BD and
LAB_UCRE < BD		 Copper standardized with urine creatinine Rounded to 7 decimal places
9.9999996 LAB_UCU = NA Population exclusions NA
9.9999999 Else   NS

20. LABDUHG – Mercury standardized with urine creatinine

Variable name:
LABDUHG

Based on:
LAB_UHG, LAB_UCRE

Description:
This variable indicates the concentration of mercury (standardized with creatinine) in the urine sample of the respondent and is measured in nanomoles per millimole (nmol/mmol).  Mercury is standardized with creatinine in order to correct for urine dilution.

Note:
Created in the lab post-verify process.  BD represents data that is below the limit of detection and is replaced in processing with a code (i.e. 99.99995).

Table 20
LABDUHG Specifications
Value Condition(s) Description Notes
Round(LAB_UHG / (LAB_UCRE /
8.84), .5)		 LAB_UHG < BD and
LAB_UCRE < BD		 Mercury standardized with urine creatinine Rounded to 5 decimal places
99.99996 LAB_UHG = NA Population exclusions NA
99.99999 Else   NS

21. LABDUMN – Manganese standardized with urine creatinine

Variable name:
LABDUMN

Based on:
LAB_UMN, LAB_UCRE

Description:
This variable indicates the concentration of manganese (standardized with creatinine) in the urine sample of the respondent and is measured in nanomoles per millimole (nmol/mmol).  Manganese is standardized with creatinine in order to correct for urine dilution.

Note:
Created in the lab post-verify process.  BD represents data that is below the limit of detection and is replaced in processing with a code (i.e. 999.99995).

Table 21
LABDUMN Specifications
Value Condition(s) Description Notes
Round(LAB_UMN / (LAB_UCRE /
8.84), .5)		 LAB_UMN < BD and
LAB_UCRE < BD		 Manganese standardized with urine creatinine Rounded to 5 decimal places
999.99996 LAB_UMN = NA Population exclusions NA
999.99999 Else   NS

22. LABDUMO – Molybdenum standardized with urine creatinine

Variable name:
LABDUMO

Based on:
LAB_UMO, LAB_UCRE

Description:
This variable indicates the concentration of molybdenum (standardized with creatinine) in the urine sample of the respondent and is measured in nanomoles per millimole (nmol/mmol).  Molybdenum is standardized with creatinine in order to correct for urine dilution.

Note:
Created in the lab post-verify process.  BD represents data that is below the limit of detection and is replaced in processing with a code (i.e. 99.9999995).

Table 22
LABDUMO Specifications
Value Condition(s) Description Notes
Round(LAB_UMO / (LAB_UCRE /
8.84), .7)		 LAB_UMO < BD and
LAB_UCRE < BD		 Molybdenum standardized with urine creatinine Rounded to 7 decimal places
999.9999996 LAB_UMO = NA Population exclusions NA
999.9999999 Else   NS

23. LABDUNI – Nickel standardized with urine creatinine

Variable name:
LABDUNI

Based on:
LAB_UNI, LAB_UCRE

Description:
This variable indicates the concentration of nickel (standardized with creatinine) in the urine sample of the respondent and is measured in nanomoles per millimole (nmol/mmol).  Nickel is standardized with creatinine in order to correct for urine dilution.

Note:
Created in the lab post-verify process.  BD represents data that is below the limit of detection and is replaced in processing with a code (i.e. 999.99995).

Table 23
LABDUNI Specifications
Value Condition(s) Description Notes
Round(LAB_UNI / (LAB_UCRE /
8.84), .5)		 LAB_UNI < BD and
LAB_UCRE < BD		 Nickel standardized with urine creatinine Rounded to 5 decimal places
999.99996 LAB_UNI = NA Population exclusions NA
999.99999 Else   NS

24. LABDUPB – Lead standardized with urine creatinine

Variable name:
LABDUPB

Based on:
LAB_UPB, LAB_UCRE

Description:
This variable indicates the concentration of lead (standardized with creatinine) in the urine sample of the respondent and is measured in micromoles per millimole (µmol/mmol).  Lead is standardized with creatinine in order to correct for urine dilution.

Note:
Created in the lab post-verify process.  BD represents data that is below the limit of detection and is replaced in processing with a code (i.e. 9999.995).

Table 24
LABDUPB Specifications
Value Condition(s) Description Notes
Round(LAB_UPB / (LAB_UCRE /
8.84), .3)		 LAB_UPB < BD and
LAB_UCRE < BD		 Lead standardized with urine creatinine Rounded to 3 decimal places
9999.996 LAB_UPB = NA Population exclusions NA
9999.999 Else   NS

25. LABDUSB – Antimony standardized with urine creatinine

Variable name:
LABDUSB

Based on:
LAB_USB, LAB_UCRE

Description:
This variable indicates the concentration of antimony (standardized with creatinine) in the urine sample of the respondent and is measured in nanomoles per millimole (nmol/mmol).  Antimony is standardized with creatinine in order to correct for urine dilution.

Note:
Created in the lab post-verify process.  BD represents data that is below the limit of detection and is replaced in processing with a code (i.e. 9.999995).

Table 25
LABDUSB Specifications
Value Condition(s) Description Notes
Round(LAB_USB / (LAB_UCRE /
8.84), .5)		 LAB_USB < BD and
LAB_UCRE < BD		 Antimony standardized with urine creatinine Rounded to 6 decimal places
9.999996 LAB_USB = NA Population exclusions NA
9.999999 Else   NS

26. LABDUSE – Selenium standardized with urine creatinine

Variable name:
LABDUSE

Based on:
LAB_USE, LAB_UCRE

Description:
This variable indicates the concentration of selenium (standardized with creatinine) in the urine sample of the respondent and is measured in micromoles per millimole (µmol/mmol).  Selenium is standardized with creatinine in order to correct for urine dilution.

Note:
Created in the lab post-verify process.  BD represents data that is below the limit of detection and is replaced in processing with a code (i.e. 999.9995).

Table 26
LABDUSE Specifications
Value Condition(s) Description Notes
Round(LAB_USE / (LAB_UCRE /
8.84), .4)		 LAB_USE < BD and
LAB_UCRE < BD		 Selenium standardized with urine creatinine Rounded to 4 decimal places
999.9996 LAB_USE = NA Population exclusions NA
999.9999 Else   NS

27. LABDUU – Uranium standardized with urine creatinine

Variable name:
LABDUU

Based on:
LAB_UU, LAB_UCRE

Description:
This variable indicates the concentration of uranium (standardized with creatinine) in the urine sample of the respondent and is measured in nanomoles per millimole (nmol/mmol).  Uranium is standardized with creatinine in order to correct for urine dilution.

Note:
Created in the lab post-verify process.  BD represents data that is below the limit of detection and is replaced in processing with a code (i.e. 9.99999995).

Table 27
LABDUU Specifications
Value Condition(s) Description Notes
Round(LAB_UU / (LAB_UCRE /
8.84), .8)		 LAB_UU < BD and
LAB_UCRE < BD		 Uranium standardized with urine creatinine Rounded to 8 decimal places
9.99999996 LAB_UU = NA Population exclusions NA
9.99999999 Else   NS

28. LABDUV – Vanadium standardized with urine creatinine

Variable name:
LABDUV

Based on:
LAB_UV, LAB_UCRE

Description:
This variable indicates the concentration of vanadium (standardized with creatinine) in the urine sample of the respondent and is measured in nanomoles per millimole (nmol/mmol).  Vanadium is standardized with creatinine in order to correct for urine dilution.

Note:
Created in the lab post-verify process.  BD represents data that is below the limit of detection and is replaced in processing with a code (i.e. 999.99995).

Table 28
LABDUV Specifications
Value Condition(s) Description Notes
Round(LAB_UV / (LAB_UCRE /
8.84), .5)		 LAB_UV < BD and
LAB_UCRE < BD		 Vanadium standardized with urine creatinine Rounded to 5 decimal places
999.99996 LAB_UV = NA Population exclusions NA
999.99999 Else   NS

29. LABDUZN – Zinc standardized with urine creatinine

Variable name:
LABDUZN

Based on:
LAB_UZN, LAB_UCRE

Description:
This variable indicates the concentration of zinc (standardized with creatinine) in the urine sample of the respondent and is measured in micromoles per millimole (µmol/mmol).  Zinc is standardized with creatinine in order to correct for urine dilution.

Note:
Created in the lab post-verify process.  BD represents data that is below the limit of detection and is replaced in processing with a code (i.e. 9.99995).

Table 29
LABDUZN Specifications
Value Condition(s) Description Notes
Round(LAB_UZN / (LAB_UCRE /
8.84), .5)		 LAB_UZN < BD and
LAB_UCRE < BD		 Zinc standardized with urine creatinine Rounded to 5 decimal places
9.99996 LAB_UZN = NA Population exclusions NA
9.99999 Else   NS
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