2001-2002 Data File Updates

January, 2006

Lab 06 Nutritional Biochemistries: The detection limit was variable for the cotinine analyte in this data set. Two variables are provided for cotinine. The variable named LBDCOTLC indicates whether the results were below the limit of detection. There are two values: “0” and “1”; “1” indicates that the result was below the limit of detection. The other variable named LBXCOT provides the analytic result for that analyte. In cases, where the result was below the limit of detection, the value for that variable is the detection limit divided by the square root of two.

Lab 06 Urinary Iodine: The data was updated to include “eligible-but-not-done” sample persons. 

Phlebotomy: The file was updated to add the data for the fasting hours and minutes and the variable indicating the session in which the participant was examined.

Lab 17 Toxoplasma: One derived variable (LBDTO1) was added to the file to replace the previously released variable LBXTO1. Since the upper detection limit of the assay is 240 all values greater than 240 were recoded to 240. 

October, 2005

Dietary Supplement Use - Minor Corrections to Codebook and Documentation

August, 2005

Lab 40 Iron and TIBC - Updated:  The original files released in June 2005 had sample persons ages 3-5 years and females 12-49 years.
The files re-released in August 2005 have all sample persons (male and female) ages 1 and older.

July, 2005

PHPYPA Urinary Phthalates - Updated:  Added previously removed "not done" records back to the dataset.

Lab06HM - Updated:  Added previously removed "not done" records back to the dataset.

Lab26 (Pesticides) - Updated:  Added previously removed "not done" records back to the dataset.

Lab 28 (Dioxins) - Updated:  Added previously removed "not done" records back to the dataset.

Lab 40T4 (Thyroid-Stimulating Hormone and Thyroxine) - Updated:  Added previously removed "not done" records back to the dataset.

June, 2005

Exam

Audiometry - Updated:  Added previously removed "not done" records back to the dataset.

Body Measurements - Updated:  Added comment codes for some of the Body Measurement variables.

Lab

Lab13AM - Updated Fasting/AM weights added.

PHPYPA Urinary Phthalates - Updated:  Changes to frequency file.