DIFFERENCES BETWEEN THE 2001 AND 2002 ANNUAL DEMOGRAPHIC FILES

1. The 2002 Annual Demographic File (ADF) represents the first time it includes the expanded sample improving state estimates of children's health insurance coverage. Even though the expanded sample was implemented in 2001, only information from the regular sample was released last year. The sample increase accounts for the addition of about 34,500 households to the 2002 ADF. Adding together the regular sample of about 60,000, the Hispanic sample of about 4,500, and the expanded sample of about 34,500 households, the total sample size for the 2002 ADF is about 99,000 households.
2. The 2002 ADF uses weights based on Census 2000 population controls, instead of 1990 population controls used in previous years. Use of the 2000 based weights affected weighted frequencies, which are noticeable when doing comparisons between 2002 and earlier years.
3. The Census Bureau will release a bridge file for 2001 containing the expanded sample and 2000 based weights sometime in October 2002.
4. Due to revisions in the federal income tax rates, the item MARG-TAX has been revised. The largest possible value is 39 for the 2002 ADF.
5. Revised topcode for A-AGE: The topcode for the age variable has been revised to 80, due to additional data confidentiality guidelines installed this year.
6. The item PEINUSYR (location 731 on the person record) has a revised description for PEINUSYR = 16, which now means 1998 - 1999. A new value, PEINUSYR = 17 has been added, meaning 2000 - 2002.
7. Revised Topcodes: As in previous years, all earnings and income items were subject to topcoding this year. The same topcodes used in 2001 were used again (see chart #1). Topcoded values were replaced with the average across all topcoded records. Chart #2 provides these average amounts for the 12 socioeconomic cells within which we computed these averages. Cells with a "-" did not have any topcoded records. Cells with an asterisk (*) were collapsed together. Chart #3 contains the topcodes and average amounts for the noncash items.

Chart #1

Topcode Amounts for Earnings Fields

Field                           Topcode

ERN-VAL                        $150,000

WS-VAL                           25,000

SE-VAL                           40,000

FRM-VAL                          25,000

 

Chart #2

Average (Replacement) Values for Earnings Fields

   Cell                  ERN-VAL               WS-VAL            SE-VAL            FRM-VAL

M, NBH, FTYR             $320,718             $60,670           $127,597          $44,547

M, NBH, OTH               319,749              62,491             98,041           45,604

M, B, FTYR                326,969              49,155            108,083          303,621*

M, B, OTH                 432,853*             37,606*              -                -   

M, H, FTYR                331,926              50,534             79,683           49,415

M, H, OTH                 432,853*             44,088             49,520*         303,621*

F, NBH, FTYR              361,315              43,389             56,934          431,345

F, NBH, OTH               270,370              44,255             48,880          360,886

F, B, FTYR                477,562              40,566             49,520*         303,621*

F, B, OTH                    -                 48,818               -                -   

F, H, FTYR                330,981              65,493             49,520*         303,621

F, B, OTH                 432,853*             37,606*            49,520*            -  

 

Cell Definition: (Key)

Column 1:                                 Sex:

                                          M=Male

                                          F=Female

Column 2:                                 Race/Origin

                                          NBH=Not Black, Not Hispanic

                                          B=Black

                                          H=Hispanic

Column 3:                                 Work Experience:

                                          FTYR=Full Year (50+ weeks), Full Time (35+ hours per week)

                                          OTH=Not Full Year, Full Time

 

Chart #3

Income Source                Topcode                 Average         

SUR-VAL1                     $50,000                 $90,937

SUR-VAL2                      50,000                  90,937

DIS-VAL1                      35,000                  52,858

DIS-VAL2                      35,000                    -

RET-VAL1                      45,000                  64,501

RET-VAL2                      45,000                  65,080

INT-VAL                       35,000                  64,854

DIV-VAL                       15,000                  38,962

RNT-VAL                       25,000                  57,417

ED-VAL                        20,000                  34,876

CSP-VAL                       15,000                  25,657

ALM-VAL                       40,000                  63,554

FIN-VAL                       30,000                  46,155

OI-VAL                        25,000                  47,177

 

The data after topcoding were used to create all combined income recodes on the file.