The Common BLSA Data Set



5.3 Cross-Reference Listing of Location of Data Items
The contents of the common BLSA data set, as prescribed by the BLSA Steering Committee are shown below. For each data item, the file in which it can be found is noted. Details can be found in the prior sections.
visit information
visit number                       BLS$CDS$FIX, BLS$CDS$RX,
                                   BLS$CDS$DX, usually as part of
                                   the key rather than a data
                                   item
date of visit                      BLS$CDS$FIX
current status                     BLS$CDS$NL

demographics
date of birth                      BLS$CDS$NL
education                          BLS$CDS$FIX
marital status                     BLS$CDS$FIX
race                               BLS$CDS$NL
employment and occupation          BLS$CDS$FIX
personal and family income         BLS$CDS$FIX

anthropometry
height                             BLS$CDS$FIX
weight                             BLS$CDS$FIX
handedness                         BLS$CDS$FIX

physical examination and medical history
men's and women's medical
      history and physical (H&P)   BLS$CDS$FIX
blood pressure                     BLS$CDS$FIX & H&P
pulse rate                         H&P
fasting blood sugar                BLS$CDS$FIX
CHD class                          BLS$CDS$FIX
hearing and eye test results       BLS$CDS$FIX
visual acuity                      BLS$CDS$FIX
diagnosis list                     BLS$CDS$DX
standard laboratory values         BLS$CDS$FIX
health promotion and health risk behaviors
smoking                            BLS$CDS$FIX
exercise activity calories         BLS$CDS$FIX
diet data                          BLS$CDS$FIX

self-rated health status
Cornell Medical Index              BLS$CDS$FIXself-rated health status           H&P
Blessed mental status              BLS$CDS$FIX
CES-D                              BLS$CDS$FIX

medications
prescription medications           BLS$CDS$RX

morbidity
hospitalizations and major 
     illnesses                     BLS$CDS$HI
medical procedures performed       BLS$CDS$PRC

mortality
date of death                      BLS$CDS$NL
cause of death                     BLS$CDS$NL
autopsy status                     BLS$CDS$NL


5.4 Index of Data Types
In order to facilitate the location of specific types of data, the following index has been compiled. Opposite each data type is the information type(s) and card(s) where these data can be found in the BLS$CDS$FIX file. As the data dictionary in section 5.2.1.3 of this document is sorted by information and card (under the 'source' heading), it should be relatively simple to find the desired data items from this information. If reference is made to a data type in another data file, then that file name is indicated.
data type                               source(s)
activities and attitudes questionnaire  501-1
activity calories                       142-1
audiometry (thru 8/31/90)               601-1, 601-2
audiometry (since 9/1/90)               603-1
autopsy study status                    BLS$CDS$NL
basal metabolism                        141-2
body composition                        161-2
calories                                142-1
CES-D                                   290-12
cgtt                                    122-2
clamp                                   128-2
color vision                            611-1, 611-2
Cornell Medical Index                   4-1
current status                          BLS$CDS$NL
death info, date and cause              BLS$CDS$NL
demographic questionnaire               804-1, 804-2
diagnoses                               BLS$CDS$DX
drugs                                   BLS$CDS$RX
EKG-CAD classification                  7-1
ethnicity                               BLS$CDS$NL
examination, men                1-5 thru 1-9
examination, women            901-8 thru 901-13
fasting blood sugar                     120-2 thru 131-2
follow-up study status                  BLS$CDS$NL
fpg                                     125-2
handedness                              161-11, 290-1
history, first since 1991               810-1 thru 801-15   
history, interval since 1991            805-1 thru 805-12
history, men (1958-1991)                1-1 thru 1-4
history, women (1978-1991)              901-1 thru 901-7
history, personal smoking               409-1
hospitalizations                        BLS$CDS$HI
illnesses                               BLS$CDS$HI
interval history, since 1991            805-1 thru 805-12
iv-ex                                   127-2
iv-post-ex                              129-2
ivgtt                                   120-2
ivitt                                   124-2
laboratory results                      2-1 thru 2-4medical diagnoses                       BLS$CDS$DX
medical history, first since 1991       810-1 thru 801-15
medical history, interval since 1991    805-1 thru 805-12
medical history, men (1958-1991)        1-1 thru 1-4
medical history, women (1978-1991)      901-1 thru 901-7
medical laboratory                      2-1 thru 2-4
medications                             BLS$CDS$RX
mental status                           290-9
neurological exam                       290-1, 290-9, 290-12
nutrient intake                         301-18, 308-18
ogtt                                    121-2
ogtt, 3 hour                            131-2
oral glucose test                       130-2

physical examination, men            1-5 thru 1-9
physical examination, women         901-8 thru 901-13
prescriptions                           BLS$CDS$RX
procedures, surgical & test             BLS$CDS$PRC
race                                    BLS$CDS$NL
smoking history                         409-1
status                                  BLS$CDS$NL
surgical procedures                     BLS$CDS$PRC
test procedures                         BLS$CDS$PRC
tonography                              611-1, 611-2
trt                                     123-2
vision                                  611-1, 611-2
visit date                              0-1

The Common BLSA Data Set
User Authorization Request
Please print or type all information.
1.  Name:                                                                    
2.  Date:                               
3.  Briefly describe the nature of your research:

4.  VMS Username:                            
5.  Are you an employee of GRC?      Yes       No
If the answer to 5 is Yes, please answer 6 & 7, and sign the certification at the bottom.
6.  GRC room number:                            
7.  Telephone extension:                E-mail address:                               
If the answer to 5 is No, you must be collaborating with a BLSA researcher who will serve as
your sponsor. 
Please complete 8 and 9, and have your BLSA sponsor answer 10 through 13, and both you and
your sponsor
must sign the certification at the bottom.
8.  Applicant's address:                                                                                                 
                                                                                                                           
9.  Applicant's telephone number:                                          
10.  Sponsor's Name:                                                                        
11.  Sponsor's GRC room number:                             
12.  Sponsor's Telephone extension:               E-mail address:                               
13.  During what time period will the applicant be using these data?
    From:                               Until:                           
Privacy Act Notification and Certification:
I understand that the BLSA files are a system of records within the scope of PL 93-579, the
Privacy Act of
1974,  This dictates that the information contained in the files may be disclosed only on a
"need-to-know"
basis.  I understand that it is my responsibility to ensure that there is no unauthorized disclosure
of these data. 
I agree that the data will be used only for the purposes stated above, and that none of these  data
will be
released in whole or in part to any person or organization who has not been authorized to receive
them.  I agree
that, should the identity of any person described  in the system be disclosed inadvertently, the
Data
Management Services staff of the Research Resources Branch will be immediately advised of the
incident.  Upon
completion of the intended analysis, I agree that the access-enabling information and format
documentation
will be returned or destroyed, and no copy of identified records will be retained.  I agree that I
will be
responsible for any and all legal implications of unauthorized disclosure, if disclosure is due to
my actions,
either intentional or inadvertent.

                                                                 Signature of Sponsor (required if #5 is No) 


                                                                 Signature of Applicant

As a courtesy to other researchers who use these data, and in return for the privilege of using
these data in my
research, I will supply the DM staff with information relating to errors and omissions in these
data, as well
as other data items that relate to the BLSA and should be part of the BLSA database.

The Common BLSA Data Set
Error Report
Please print or type all information.
Name: Date: Telephone number: E-mail address: Type of Error: Data is incorrect Data is incomplete or missing Please describe the nature of the error: If you have any idea as to the source of the error, please indicate what it is: Corrections or additions may be provided on floppy disk or, if they are manageable, on hard copy below. Please remember to include identifying information (normally xray and visit, at a minimum) so that data may be properly filed. Correction is on the accompanying floppy disk: Filename: File format (data items and columns defined for fixed data, or delimiters used for variable data): Correction is as noted below:


The Common BLSA Data Set
Request for Addition or Deletion of Data Item
Please print or type all information.
Name:                                                                         
Date:                              
Telephone number:                       E-mail address:                                                           
This request must be approved by the BLSA Steering Committee before it can be honored by the
Data Management Services staff of the Research Resources Branch.  Please complete this form
andsubmit
it to the Steering Committee, which will forward it to Data Management Services when and if it
is favorably acted upon.

Type of Action:    Addition to dataset           Deletion from dataset

Describe the data that should be added or deleted:


Why is this data of general interest to justify addition, or no longer of interest to justify deletion?



What is the source of this data item(s)?
    BLSA masterfile, or
    BLSA researcher:                                                                          
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Action by the BLSA Steering Committee:
    Approved            Disapproved

By:                                                                                Date:                           




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