INTRODATE
Description
INTRODATE reports the day of the month that the case was first contacted for an interview (panel day).
There are several other variables that report date information on when the case was introduced. Also see INTROMONTH for the month that the case was introduced (panel month), and INTROYEAR for the year that the case was introduced (panel year).
Comparability
INTRODATE is available beginning in 2005.
Universe
2005-2010: ATUS respondents and nonrespondents.
Codes/Frequencies
Respondents
| Code |
Description |
2003 |
2004 |
2005 |
2006 |
2007 |
2008 |
2009 |
2010 |
| 1 |
1 |
-- |
-- |
416 |
439 |
467 |
429 |
517 |
529 |
| 2 |
2 |
-- |
-- |
471 |
476 |
454 |
441 |
507 |
435 |
| 3 |
3 |
-- |
-- |
507 |
463 |
413 |
463 |
437 |
471 |
| 4 |
4 |
-- |
-- |
504 |
430 |
489 |
408 |
464 |
498 |
| 5 |
5 |
-- |
-- |
425 |
491 |
459 |
391 |
495 |
505 |
| 6 |
6 |
-- |
-- |
477 |
471 |
347 |
465 |
468 |
419 |
| 7 |
7 |
-- |
-- |
483 |
381 |
420 |
532 |
442 |
518 |
| 8 |
8 |
-- |
-- |
414 |
453 |
463 |
441 |
526 |
485 |
| 9 |
9 |
-- |
-- |
468 |
475 |
459 |
453 |
496 |
397 |
| 10 |
10 |
-- |
-- |
509 |
485 |
423 |
475 |
422 |
465 |
| 11 |
11 |
-- |
-- |
488 |
449 |
469 |
445 |
467 |
500 |
| 12 |
12 |
-- |
-- |
446 |
502 |
469 |
376 |
502 |
463 |
| 13 |
13 |
-- |
-- |
530 |
480 |
386 |
473 |
490 |
467 |
| 14 |
14 |
-- |
-- |
493 |
409 |
404 |
536 |
460 |
508 |
| 15 |
15 |
-- |
-- |
420 |
475 |
447 |
418 |
476 |
504 |
| 16 |
16 |
-- |
-- |
450 |
487 |
467 |
441 |
488 |
421 |
| 17 |
17 |
-- |
-- |
414 |
483 |
416 |
471 |
429 |
435 |
| 18 |
18 |
-- |
-- |
448 |
451 |
474 |
454 |
451 |
494 |
| 19 |
19 |
-- |
-- |
356 |
425 |
304 |
401 |
423 |
412 |
| 20 |
20 |
-- |
-- |
381 |
324 |
257 |
397 |
293 |
294 |
| 21 |
21 |
-- |
-- |
261 |
268 |
285 |
271 |
245 |
368 |
| 22 |
22 |
-- |
-- |
268 |
316 |
353 |
301 |
371 |
394 |
| 23 |
23 |
-- |
-- |
293 |
368 |
311 |
362 |
372 |
284 |
| 24 |
24 |
-- |
-- |
433 |
348 |
292 |
410 |
278 |
344 |
| 25 |
25 |
-- |
-- |
309 |
293 |
307 |
337 |
310 |
355 |
| 26 |
26 |
-- |
-- |
352 |
355 |
363 |
224 |
329 |
337 |
| 27 |
27 |
-- |
-- |
367 |
419 |
316 |
281 |
360 |
367 |
| 28 |
28 |
-- |
-- |
490 |
409 |
413 |
486 |
463 |
493 |
| 29 |
29 |
-- |
-- |
396 |
421 |
473 |
418 |
434 |
423 |
| 30 |
30 |
-- |
-- |
430 |
458 |
420 |
424 |
436 |
380 |
| 31 |
31 |
-- |
-- |
339 |
239 |
228 |
299 |
282 |
295 |
| 999 |
NIU (Not in universe) |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
Respondents and Household Members
| Code |
Description |
2003 |
2004 |
2005 |
2006 |
2007 |
2008 |
2009 |
2010 |
| 1 |
1 |
-- |
-- |
416 |
439 |
467 |
429 |
517 |
529 |
| 2 |
2 |
-- |
-- |
471 |
476 |
454 |
441 |
507 |
435 |
| 3 |
3 |
-- |
-- |
507 |
463 |
413 |
463 |
437 |
471 |
| 4 |
4 |
-- |
-- |
504 |
430 |
489 |
408 |
464 |
498 |
| 5 |
5 |
-- |
-- |
425 |
491 |
459 |
391 |
495 |
505 |
| 6 |
6 |
-- |
-- |
477 |
471 |
347 |
465 |
468 |
419 |
| 7 |
7 |
-- |
-- |
483 |
381 |
420 |
532 |
442 |
518 |
| 8 |
8 |
-- |
-- |
414 |
453 |
463 |
441 |
526 |
485 |
| 9 |
9 |
-- |
-- |
468 |
475 |
459 |
453 |
496 |
397 |
| 10 |
10 |
-- |
-- |
509 |
485 |
423 |
475 |
422 |
465 |
| 11 |
11 |
-- |
-- |
488 |
449 |
469 |
445 |
467 |
500 |
| 12 |
12 |
-- |
-- |
446 |
502 |
469 |
376 |
502 |
463 |
| 13 |
13 |
-- |
-- |
530 |
480 |
386 |
473 |
490 |
467 |
| 14 |
14 |
-- |
-- |
493 |
409 |
404 |
536 |
460 |
508 |
| 15 |
15 |
-- |
-- |
420 |
475 |
447 |
418 |
476 |
504 |
| 16 |
16 |
-- |
-- |
450 |
487 |
467 |
441 |
488 |
421 |
| 17 |
17 |
-- |
-- |
414 |
483 |
416 |
471 |
429 |
435 |
| 18 |
18 |
-- |
-- |
448 |
451 |
474 |
454 |
451 |
494 |
| 19 |
19 |
-- |
-- |
356 |
425 |
304 |
401 |
423 |
412 |
| 20 |
20 |
-- |
-- |
381 |
324 |
257 |
397 |
293 |
294 |
| 21 |
21 |
-- |
-- |
261 |
268 |
285 |
271 |
245 |
368 |
| 22 |
22 |
-- |
-- |
268 |
316 |
353 |
301 |
371 |
394 |
| 23 |
23 |
-- |
-- |
293 |
368 |
311 |
362 |
372 |
284 |
| 24 |
24 |
-- |
-- |
433 |
348 |
292 |
410 |
278 |
344 |
| 25 |
25 |
-- |
-- |
309 |
293 |
307 |
337 |
310 |
355 |
| 26 |
26 |
-- |
-- |
352 |
355 |
363 |
224 |
329 |
337 |
| 27 |
27 |
-- |
-- |
367 |
419 |
316 |
281 |
360 |
367 |
| 28 |
28 |
-- |
-- |
490 |
409 |
413 |
486 |
463 |
493 |
| 29 |
29 |
-- |
-- |
396 |
421 |
473 |
418 |
434 |
423 |
| 30 |
30 |
-- |
-- |
430 |
458 |
420 |
424 |
436 |
380 |
| 31 |
31 |
-- |
-- |
339 |
239 |
228 |
299 |
282 |
295 |
| 999 |
NIU (Not in universe) |
-- |
-- |
24364 |
24204 |
22318 |
22894 |
23335 |
24240 |
Respondents and Non-respondents
| Code |
Description |
2003 |
2004 |
2005 |
2006 |
2007 |
2008 |
2009 |
2010 |
| 1 |
1 |
-- |
-- |
793 |
868 |
933 |
837 |
973 |
938 |
| 2 |
2 |
-- |
-- |
863 |
941 |
910 |
874 |
932 |
792 |
| 3 |
3 |
-- |
-- |
936 |
924 |
846 |
966 |
788 |
872 |
| 4 |
4 |
-- |
-- |
936 |
847 |
994 |
862 |
866 |
934 |
| 5 |
5 |
-- |
-- |
862 |
981 |
945 |
784 |
934 |
906 |
| 6 |
6 |
-- |
-- |
967 |
939 |
787 |
949 |
902 |
858 |
| 7 |
7 |
-- |
-- |
951 |
783 |
873 |
988 |
868 |
958 |
| 8 |
8 |
-- |
-- |
792 |
871 |
947 |
841 |
968 |
945 |
| 9 |
9 |
-- |
-- |
874 |
946 |
913 |
882 |
951 |
783 |
| 10 |
10 |
-- |
-- |
949 |
922 |
859 |
962 |
795 |
857 |
| 11 |
11 |
-- |
-- |
937 |
851 |
992 |
867 |
847 |
931 |
| 12 |
12 |
-- |
-- |
868 |
978 |
950 |
773 |
942 |
909 |
| 13 |
13 |
-- |
-- |
955 |
953 |
800 |
935 |
911 |
865 |
| 14 |
14 |
-- |
-- |
959 |
804 |
858 |
1004 |
862 |
954 |
| 15 |
15 |
-- |
-- |
821 |
871 |
952 |
823 |
940 |
944 |
| 16 |
16 |
-- |
-- |
869 |
953 |
906 |
881 |
925 |
803 |
| 17 |
17 |
-- |
-- |
806 |
910 |
876 |
952 |
781 |
862 |
| 18 |
18 |
-- |
-- |
854 |
856 |
982 |
883 |
856 |
934 |
| 19 |
19 |
-- |
-- |
683 |
837 |
721 |
761 |
826 |
758 |
| 20 |
20 |
-- |
-- |
743 |
677 |
546 |
782 |
584 |
626 |
| 21 |
21 |
-- |
-- |
572 |
484 |
590 |
519 |
523 |
630 |
| 22 |
22 |
-- |
-- |
559 |
665 |
730 |
611 |
712 |
728 |
| 23 |
23 |
-- |
-- |
542 |
727 |
693 |
664 |
710 |
587 |
| 24 |
24 |
-- |
-- |
763 |
685 |
640 |
768 |
567 |
654 |
| 25 |
25 |
-- |
-- |
587 |
581 |
648 |
639 |
573 |
658 |
| 26 |
26 |
-- |
-- |
656 |
678 |
705 |
499 |
627 |
631 |
| 27 |
27 |
-- |
-- |
740 |
784 |
663 |
559 |
715 |
669 |
| 28 |
28 |
-- |
-- |
960 |
815 |
851 |
953 |
858 |
972 |
| 29 |
29 |
-- |
-- |
750 |
823 |
912 |
810 |
842 |
797 |
| 30 |
30 |
-- |
-- |
810 |
893 |
829 |
845 |
806 |
748 |
| 31 |
31 |
-- |
-- |
620 |
456 |
433 |
588 |
513 |
582 |
| 999 |
NIU (Not in universe) |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
Respondents and Non-respondents plus Household Members
| Code |
Description |
2003 |
2004 |
2005 |
2006 |
2007 |
2008 |
2009 |
2010 |
| 1 |
1 |
-- |
-- |
793 |
868 |
933 |
837 |
973 |
938 |
| 2 |
2 |
-- |
-- |
863 |
941 |
910 |
874 |
932 |
792 |
| 3 |
3 |
-- |
-- |
936 |
924 |
846 |
966 |
788 |
872 |
| 4 |
4 |
-- |
-- |
936 |
847 |
994 |
862 |
866 |
934 |
| 5 |
5 |
-- |
-- |
862 |
981 |
945 |
784 |
934 |
906 |
| 6 |
6 |
-- |
-- |
967 |
939 |
787 |
949 |
902 |
858 |
| 7 |
7 |
-- |
-- |
951 |
783 |
873 |
988 |
868 |
958 |
| 8 |
8 |
-- |
-- |
792 |
871 |
947 |
841 |
968 |
945 |
| 9 |
9 |
-- |
-- |
874 |
946 |
913 |
882 |
951 |
783 |
| 10 |
10 |
-- |
-- |
949 |
922 |
859 |
962 |
795 |
857 |
| 11 |
11 |
-- |
-- |
937 |
851 |
992 |
867 |
847 |
931 |
| 12 |
12 |
-- |
-- |
868 |
978 |
950 |
773 |
942 |
909 |
| 13 |
13 |
-- |
-- |
955 |
953 |
800 |
935 |
911 |
865 |
| 14 |
14 |
-- |
-- |
959 |
804 |
858 |
1004 |
862 |
954 |
| 15 |
15 |
-- |
-- |
821 |
871 |
952 |
823 |
940 |
944 |
| 16 |
16 |
-- |
-- |
869 |
953 |
906 |
881 |
925 |
803 |
| 17 |
17 |
-- |
-- |
806 |
910 |
876 |
952 |
781 |
862 |
| 18 |
18 |
-- |
-- |
854 |
856 |
982 |
883 |
856 |
934 |
| 19 |
19 |
-- |
-- |
683 |
837 |
721 |
761 |
826 |
758 |
| 20 |
20 |
-- |
-- |
743 |
677 |
546 |
782 |
584 |
626 |
| 21 |
21 |
-- |
-- |
572 |
484 |
590 |
519 |
523 |
630 |
| 22 |
22 |
-- |
-- |
559 |
665 |
730 |
611 |
712 |
728 |
| 23 |
23 |
-- |
-- |
542 |
727 |
693 |
664 |
710 |
587 |
| 24 |
24 |
-- |
-- |
763 |
685 |
640 |
768 |
567 |
654 |
| 25 |
25 |
-- |
-- |
587 |
581 |
648 |
639 |
573 |
658 |
| 26 |
26 |
-- |
-- |
656 |
678 |
705 |
499 |
627 |
631 |
| 27 |
27 |
-- |
-- |
740 |
784 |
663 |
559 |
715 |
669 |
| 28 |
28 |
-- |
-- |
960 |
815 |
851 |
953 |
858 |
972 |
| 29 |
29 |
-- |
-- |
750 |
823 |
912 |
810 |
842 |
797 |
| 30 |
30 |
-- |
-- |
810 |
893 |
829 |
845 |
806 |
748 |
| 31 |
31 |
-- |
-- |
620 |
456 |
433 |
588 |
513 |
582 |
| 999 |
NIU (Not in universe) |
-- |
-- |
45801 |
47026 |
46256 |
45542 |
45059 |
46528 |