Main survey variable: doby_if DOB Year imputation flag

DOB Year imputation flag

Imputation flag for date of birth (DOB), year. Assumes a value of [1] if calculated from the year of interview and dvage as the year of birth is missing in the sample administration data base.

Datafiles

Index terms

Derived variable note:

Imputation flag for date of birth (DOB), year. Assumes a value of [1] if calculated from the year of interview and dvage as the year of birth is missing in the sample administration data base.

Derived variable note:

Uses DOBY_DV/

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	7904	99.76%
imputed as intdaty_dv-dvage	1	19	0.24%
	Total	7923	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
0	0	0	1.0	0.05	7923

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	9447	99.68%
imputed as intdaty_dv-dvage	1	30	0.32%
	Total	9477	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
0	0	0	1.0	0.06	9477

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	7111	99.9%
imputed as intdaty_dv-dvage	1	7	0.1%
	Total	7118	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
0	0	0	1.0	0.03	7118

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	7623	99.86%
imputed as intdaty_dv-dvage	1	11	0.14%
	Total	7634	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
0	0	0	1.0	0.04	7634

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	8564	99.95%
imputed as intdaty_dv-dvage	1	4	0.05%
	Total	8568	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
0	0	0	1.0	0.02	8568

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	9554	99.95%
imputed as intdaty_dv-dvage	1	5	0.05%
	Total	9559	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
0	0	0	1.0	0.02	9559

Value label	Value	Absolute frequency	Relative frequency
missing	-9	1	0.01%
not imputed	0	10304	99.98%
imputed as intdaty_dv-dvage	1	1	0.01%
	Total	10306	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
0	1	0	1.0	0.01	10305

Value label	Value	Absolute frequency	Relative frequency
missing	-9	1	0.01%
not imputed	0	11531	99.85%
imputed as intdaty_dv-dvage	1	16	0.14%
	Total	11548	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
0	1	0	1.0	0.04	11547

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	12545	99.82%
imputed as intdaty_dv-dvage	1	23	0.18%
	Total	12568	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
0	0	0	1.0	0.04	12568

Value label	Value	Absolute frequency	Relative frequency
missing	-9	2	0.02%
not imputed	0	12960	99.58%
imputed as intdaty_dv-dvage	1	53	0.41%
	Total	13015	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
0	2	0	1.0	0.06	13013

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	12897	99.99%
imputed as intdaty_dv-dvage	1	1	0.01%
	Total	12898	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
0	0	0	1.0	0.01	12898

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	14148	100.0%
	Total	14148	100.0%

Valid Observations

14148

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	15515	99.95%
imputed as intdaty_dv-dvage	1	8	0.05%
	Total	15523	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
0	0	0	1.0	0.02	15523

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	17130	99.95%
imputed as intdaty_dv-dvage	1	8	0.05%
	Total	17138	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
0	0	0	1.0	0.02	17138

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	17823	99.98%
imputed as intdaty_dv-dvage	1	4	0.02%
	Total	17827	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
0	0	0	1.0	0.01	17827

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	48831	99.87%
imputed as intdaty_dv-dvage	1	65	0.13%
	Total	48896	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
0	0	0	1.0	0.04	48896

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	55253	99.73%
imputed as intdaty_dv-dvage	1	147	0.27%
	Total	55400	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
0	0	0	1.0	0.05	55400

Value label	Value	Absolute frequency	Relative frequency
missing	-9	1	0.0%
not imputed	0	41581	99.95%
imputed as intdaty_dv-dvage	1	19	0.05%
	Total	41601	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
0	1	0	1.0	0.02	41600

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	43560	99.96%
imputed as intdaty_dv-dvage	1	17	0.04%
	Total	43577	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
0	0	0	1.0	0.02	43577

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	46956	99.98%
imputed as intdaty_dv-dvage	1	9	0.02%
	Total	46965	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
0	0	0	1.0	0.01	46965

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	50098	99.97%
imputed as intdaty_dv-dvage	1	15	0.03%
	Total	50113	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
0	0	0	1.0	0.02	50113

Value label	Value	Absolute frequency	Relative frequency
missing	-9	1	0.0%
not imputed	0	52675	99.96%
imputed as intdaty_dv-dvage	1	18	0.03%
	Total	52694	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
0	1	0	1.0	0.02	52693

Value label	Value	Absolute frequency	Relative frequency
missing	-9	1	0.0%
not imputed	0	56560	99.92%
imputed as intdaty_dv-dvage	1	47	0.08%
	Total	56608	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
0	1	0	1.0	0.03	56607

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	59875	99.89%
imputed as intdaty_dv-dvage	1	66	0.11%
	Total	59941	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
0	0	0	1.0	0.03	59941

Value label	Value	Absolute frequency	Relative frequency
missing	-9	5	0.01%
not imputed	0	64501	99.67%
imputed as intdaty_dv-dvage	1	206	0.32%
	Total	64712	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
0	5	0	1.0	0.06	64707

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	61500	99.98%
imputed as intdaty_dv-dvage	1	12	0.02%
	Total	61512	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
0	0	0	1.0	0.01	61512

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	65614	99.98%
imputed as intdaty_dv-dvage	1	12	0.02%
	Total	65626	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
0	0	0	1.0	0.01	65626

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	70649	99.97%
imputed as intdaty_dv-dvage	1	22	0.03%
	Total	70671	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
0	0	0	1.0	0.02	70671

Value label	Value	Absolute frequency	Relative frequency
missing	-9	2	0.0%
not imputed	0	77466	99.96%
imputed as intdaty_dv-dvage	1	27	0.03%
	Total	77495	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
0	2	0	1.0	0.02	77493

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	77240	99.91%
imputed as intdaty_dv-dvage	1	68	0.09%
	Total	77308	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
0	0	0	1.0	0.03	77308

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	32849	100.0%
	Total	32849	100.0%

Valid Observations

32849

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	35447	99.93%
imputed as intdaty_dv-dvage	1	24	0.07%
	Total	35471	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
0	0	0	1.0	0.03	35471

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	27998	100.0%
	Total	27998	100.0%

Valid Observations

27998

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	29271	100.0%
	Total	29271	100.0%

Valid Observations

29271

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	32008	100.0%
	Total	32008	100.0%

Valid Observations

32008

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	34319	100.0%
	Total	34319	100.0%

Valid Observations

34319

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	36056	99.99%
imputed as intdaty_dv-dvage	1	2	0.01%
	Total	36058	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
0	0	0	1.0	0.01	36058

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	39294	100.0%
	Total	39294	100.0%

Valid Observations

39294

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	42168	100.0%
imputed as intdaty_dv-dvage	1	2	0.0%
	Total	42170	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
0	0	0	1.0	0.01	42170

Value label	Value	Absolute frequency	Relative frequency
missing	-9	2	0.0%
not imputed	0	45163	99.94%
imputed as intdaty_dv-dvage	1	27	0.06%
	Total	45192	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
0	2	0	1.0	0.02	45190

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	44837	100.0%
	Total	44837	100.0%

Valid Observations

44837

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	47074	100.0%
	Total	47074	100.0%

Valid Observations

47074

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	49692	100.0%
	Total	49692	100.0%

Valid Observations

49692

Value label	Value	Absolute frequency	Relative frequency
missing	-9	2	0.0%
not imputed	0	54565	99.99%
imputed as intdaty_dv-dvage	1	1	0.0%
	Total	54568	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
0	2	0	1.0	0	54566

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	50992	100.0%
imputed as intdaty_dv-dvage	1	2	0.0%
	Total	50994	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
0	0	0	1.0	0.01	50994

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	1435	100.0%
	Total	1435	100.0%

Valid Observations

1435

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	1623	100.0%
	Total	1623	100.0%

Valid Observations

1623

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	1766	100.0%
	Total	1766	100.0%

Valid Observations

1766

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	1663	100.0%
	Total	1663	100.0%

Valid Observations

1663

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	2100	100.0%
	Total	2100	100.0%

Valid Observations

2100

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	2506	100.0%
	Total	2506	100.0%

Valid Observations

2506

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	2821	100.0%
	Total	2821	100.0%

Valid Observations

2821

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	3272	100.0%
	Total	3272	100.0%

Valid Observations

3272

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	3630	100.0%
	Total	3630	100.0%

Valid Observations

3630

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	3461	100.0%
	Total	3461	100.0%

Valid Observations

3461

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	3655	100.0%
	Total	3655	100.0%

Valid Observations

3655

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	4045	100.0%
	Total	4045	100.0%

Valid Observations

4045

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	4427	100.0%
	Total	4427	100.0%

Valid Observations

4427

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	5018	100.0%
	Total	5018	100.0%

Valid Observations

5018

Value label	Value	Absolute frequency	Relative frequency
not imputed	0	4899	100.0%
	Total	4899	100.0%

Valid Observations

4899

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Create your own Stata code to extract data from the main end user licence Understanding Society dataset. Find out more

doby_if

Datafiles

Index terms

Derived variable note:

Derived variable note:

Code creator
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Saved variables

What else is Understanding Society doing?

Understanding Society Wave 15

Understanding Society Wave 15 – what can data users expect?

Understanding Society used for Gender Equality Index

Understanding Society Biosocial Conference 2026: combining biological and social data

Email newsletter

Datafiles

Index terms

Derived variable note:

Derived variable note:

Wave 15 (o_doby_if child)

Wave 14 (n_doby_if child)

Wave 13 (m_doby_if child)

Wave 12 (l_doby_if child)

Wave 11 (k_doby_if child)

Wave 10 (j_doby_if child)

Wave 9 (i_doby_if child)

Wave 8 (h_doby_if child)

Wave 7 (g_doby_if child)

Wave 6 (f_doby_if child)

Wave 5 (e_doby_if child)

Wave 4 (d_doby_if child)

Wave 3 (c_doby_if child)

Wave 2 (b_doby_if child)

Wave 1 (a_doby_if child)

Wave 15 (o_doby_if indall)

Wave 14 (n_doby_if indall)

Wave 13 (m_doby_if indall)

Wave 12 (l_doby_if indall)

Wave 11 (k_doby_if indall)

Wave 10 (j_doby_if indall)

Wave 9 (i_doby_if indall)

Wave 8 (h_doby_if indall)

Wave 7 (g_doby_if indall)

Wave 6 (f_doby_if indall)

Wave 5 (e_doby_if indall)

Wave 4 (d_doby_if indall)

Wave 3 (c_doby_if indall)

Wave 2 (b_doby_if indall)

Wave 1 (a_doby_if indall)

Wave 15 (o_doby_if indresp)

Wave 14 (n_doby_if indresp)

Wave 13 (m_doby_if indresp)

Wave 12 (l_doby_if indresp)

Wave 11 (k_doby_if indresp)

Wave 10 (j_doby_if indresp)

Wave 9 (i_doby_if indresp)

Wave 8 (h_doby_if indresp)

Wave 7 (g_doby_if indresp)

Wave 6 (f_doby_if indresp)

Wave 5 (e_doby_if indresp)

Wave 4 (d_doby_if indresp)

Wave 3 (c_doby_if indresp)

Wave 2 (b_doby_if indresp)

Wave 1 (a_doby_if indresp)

Wave 15 (o_doby_if youth)

Wave 14 (n_doby_if youth)

Wave 13 (m_doby_if youth)

Wave 12 (l_doby_if youth)

Wave 11 (k_doby_if youth)

Wave 10 (j_doby_if youth)

Wave 9 (i_doby_if youth)

Wave 8 (h_doby_if youth)

Wave 7 (g_doby_if youth)

Wave 6 (f_doby_if youth)

Wave 5 (e_doby_if youth)

Wave 4 (d_doby_if youth)

Wave 3 (c_doby_if youth)

Wave 2 (b_doby_if youth)

Wave 1 (a_doby_if youth)

Code creator 0

Saved variables

What else is Understanding Society doing?

Understanding Society Wave 15

Understanding Society Wave 15 – what can data users expect?

Understanding Society used for Gender Equality Index

Understanding Society Biosocial Conference 2026: combining biological and social data

Email newsletter

Code creator
0