Main survey variable: dvage Age from date of birth or ageif

Age from date of birth or ageif

Datafiles

Index term

Demographic characteristics Age

Derived variable note:

The age of the respondent at last birthday. This is derived from the exact date of birth and the date of the interview. Where the date of birth information is missing, the estimated age is used. In Wave 6, the information is edited post-field to incorporate cross-wave checked information collected elsewhere (e.g., later in the interview, in an earlier interview, or in an interview with another member of the household). First, DOB information from the individual interview in Wave 6 is used. If missing, the confirmed DOB information on the INDALL data file is used. If missing, additional sources from previous interviews are used. The age is computed from the DOB and the date of interview (i.e., the date the household grid was completed). For a small number of cases with no DOB information, the original age variable is used.

See DVAGE_ORIG
See AGE_DV

Derived variable note:

Uses INTDATD BIRTHY BIRTHM BIRTHD AGEIF FF_DOB/

Question asked in the latest wave:

hhgrid_w15.dvage

Question label:

Age

Further details:
For further details about this question, please see the questionnaires

Value label	Value	Absolute frequency	Relative frequency
missing	-9	6	0.08%
refusal	-2	9	0.11%
don't know	-1	4	0.05%
[Value >= 0]	1	7904	99.76%
	Total	7923	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
8.3	19	0	15.0	4.57	7904

Value label	Value	Absolute frequency	Relative frequency
refusal	-2	37	0.39%
don't know	-1	5	0.05%
[Value >= 0]	1	9435	99.56%
	Total	9477	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
8.19	42	0	15.0	4.56	9435

Value label	Value	Absolute frequency	Relative frequency
refusal	-2	5	0.07%
don't know	-1	5	0.07%
[Value >= 0]	1	7108	99.86%
	Total	7118	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
8.39	10	0	15.0	4.51	7108

Value label	Value	Absolute frequency	Relative frequency
refusal	-2	11	0.14%
don't know	-1	5	0.07%
[Value >= 0]	1	7618	99.79%
	Total	7634	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
8.3	16	0	15.0	4.51	7618

Value label	Value	Absolute frequency	Relative frequency
refusal	-2	7	0.08%
[Value >= 0]	1	8561	99.92%
	Total	8568	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
8.19	7	0	15.0	4.47	8561

Value label	Value	Absolute frequency	Relative frequency
refusal	-2	3	0.03%
don't know	-1	3	0.03%
[Value >= 0]	1	9553	99.94%
	Total	9559	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
8.15	6	0	15.0	4.46	9553

Value label	Value	Absolute frequency	Relative frequency
don't know	-1	3	0.03%
[Value >= 0]	1	10303	99.97%
	Total	10306	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
8.04	3	0	15.0	4.42	10303

Value label	Value	Absolute frequency	Relative frequency
missing	-9	3	0.03%
refusal	-2	14	0.12%
don't know	-1	9	0.08%
[Value >= 0]	1	11522	99.77%
	Total	11548	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
7.99	26	0	15.0	4.44	11522

Value label	Value	Absolute frequency	Relative frequency
missing	-9	16	0.13%
refusal	-2	7	0.06%
don't know	-1	12	0.1%
[Value >= 0]	1	12533	99.72%
	Total	12568	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
7.82	35	0	15.0	4.47	12533

Value label	Value	Absolute frequency	Relative frequency
missing	-9	9	0.07%
refusal	-2	20	0.15%
don't know	-1	42	0.32%
[Value >= 0]	1	12944	99.45%
	Total	13015	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
7.46	71	0	25.0	4.47	12944

Value label	Value	Absolute frequency	Relative frequency
missing	-9	1	0.01%
[Value >= 0]	1	12897	99.99%
	Total	12898	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
7.69	1	0	15.0	4.54	12897

Mean	Number Missing	Min	Max	Std Dev	N
7.64	0	0	16.0	4.57	14148

Value label	Value	Absolute frequency	Relative frequency
missing	-9	10	0.06%
refusal	-2	1	0.01%
[Value >= 0]	1	15512	99.93%
	Total	15523	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
7.59	11	0	15.0	4.6	15512

Value label	Value	Absolute frequency	Relative frequency
missing	-9	8	0.05%
[Value >= 0]	1	17130	99.95%
	Total	17138	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
7.56	8	0	15.0	4.61	17130

Mean	Number Missing	Min	Max	Std Dev	N
7.38	0	0	15.0	4.66	17827

Value label	Value	Absolute frequency	Relative frequency
missing	-9	16	0.03%
inapplicable	-8	2	0.0%
refusal	-2	17	0.03%
don't know	-1	6	0.01%
[Value >= 0]	1	48855	99.92%
	Total	48896	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
42.97	41	0	108.0	23.45	48855

Value label	Value	Absolute frequency	Relative frequency
missing	-9	18	0.03%
refusal	-2	108	0.19%
don't know	-1	57	0.1%
[Value >= 0]	1	55217	99.67%
	Total	55400	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
42.05	183	0	107.0	23.38	55217

Value label	Value	Absolute frequency	Relative frequency
missing	-9	16	0.04%
refusal	-2	11	0.03%
don't know	-1	8	0.02%
[Value >= 0]	1	41566	99.92%
	Total	41601	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
42.18	35	0	104.0	23.32	41566

Value label	Value	Absolute frequency	Relative frequency
missing	-9	12	0.03%
refusal	-2	11	0.03%
don't know	-1	10	0.02%
[Value >= 0]	1	43544	99.92%
	Total	43577	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
41.83	33	0	109.0	23.33	43544

Value label	Value	Absolute frequency	Relative frequency
missing	-9	15	0.03%
inapplicable	-8	1	0.0%
refusal	-2	11	0.02%
don't know	-1	1	0.0%
[Value >= 0]	1	46937	99.94%
	Total	46965	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
41.31	28	0	104.0	23.41	46937

Value label	Value	Absolute frequency	Relative frequency
missing	-9	19	0.04%
inapplicable	-8	2	0.0%
refusal	-2	7	0.01%
don't know	-1	14	0.03%
[Value >= 0]	1	50071	99.92%
	Total	50113	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
40.69	42	0	103.0	23.41	50071

Value label	Value	Absolute frequency	Relative frequency
missing	-9	28	0.05%
refusal	-2	4	0.01%
don't know	-1	8	0.02%
[Value >= 0]	1	52654	99.92%
	Total	52694	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
40.12	40	0	103.0	23.35	52654

Value label	Value	Absolute frequency	Relative frequency
missing	-9	29	0.05%
inapplicable	-8	2	0.0%
refusal	-2	20	0.04%
don't know	-1	26	0.05%
[Value >= 0]	1	56531	99.86%
	Total	56608	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
39.52	77	0	102.0	23.29	56531

Value label	Value	Absolute frequency	Relative frequency
missing	-9	71	0.12%
refusal	-2	23	0.04%
don't know	-1	31	0.05%
[Value >= 0]	1	59816	99.79%
	Total	59941	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
38.87	125	0	101.0	23.22	59816

Value label	Value	Absolute frequency	Relative frequency
missing	-9	9	0.01%
refusal	-2	41	0.06%
don't know	-1	173	0.27%
[Value >= 0]	1	64489	99.66%
	Total	64712	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
38.31	223	0	102.0	23.09	64489

Value label	Value	Absolute frequency	Relative frequency
missing	-9	1	0.0%
[Value >= 0]	1	61511	100.0%
	Total	61512	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
38.88	1	0	101.0	23.29	61511

Mean	Number Missing	Min	Max	Std Dev	N
38.28	0	0	104.0	23.16	65626

Value label	Value	Absolute frequency	Relative frequency
missing	-9	10	0.01%
refusal	-2	1	0.0%
[Value >= 0]	1	70660	99.98%
	Total	70671	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
37.87	11	0	104.0	23.08	70660

Value label	Value	Absolute frequency	Relative frequency
missing	-9	8	0.01%
[Value >= 0]	1	77487	99.99%
	Total	77495	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
37.42	8	0	102.0	22.93	77487

Value label	Value	Absolute frequency	Relative frequency
missing	-9	49	0.06%
[Value >= 0]	1	77259	99.94%
	Total	77308	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
36.08	49	0	101.0	22.56	77259

Value label	Value	Absolute frequency	Relative frequency
inapplicable	-8	1	0.0%
[Value >= 0]	1	32848	100.0%
	Total	32849	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
51.4	1	16.0	102.0	18.94	32848

Value label	Value	Absolute frequency	Relative frequency
missing	-9	2	0.01%
refusal	-2	25	0.07%
don't know	-1	8	0.02%
[Value >= 0]	1	35436	99.9%
	Total	35471	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
50.88	35	16.0	101.0	18.84	35436

Mean	Number Missing	Min	Max	Std Dev	N
50.93	0	16.0	101.0	18.66	27998

Value label	Value	Absolute frequency	Relative frequency
missing	-9	2	0.01%
don't know	-1	1	0.0%
[Value >= 0]	1	29268	99.99%
	Total	29271	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
50.65	3	16.0	101.0	18.73	29268

Value label	Value	Absolute frequency	Relative frequency
missing	-9	3	0.01%
refusal	-2	1	0.0%
[Value >= 0]	1	32004	99.99%
	Total	32008	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
50.24	4	16.0	100.0	18.85	32004

Value label	Value	Absolute frequency	Relative frequency
missing	-9	5	0.01%
inapplicable	-8	2	0.01%
don't know	-1	5	0.01%
[Value >= 0]	1	34307	99.97%
	Total	34319	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
49.85	12	16.0	103.0	18.86	34307

Value label	Value	Absolute frequency	Relative frequency
missing	-9	10	0.03%
don't know	-1	3	0.01%
[Value >= 0]	1	36045	99.96%
	Total	36058	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
49.34	13	16.0	103.0	18.81	36045

Value label	Value	Absolute frequency	Relative frequency
missing	-9	10	0.03%
don't know	-1	4	0.01%
[Value >= 0]	1	39280	99.96%
	Total	39294	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
48.78	14	16.0	102.0	18.73	39280

Value label	Value	Absolute frequency	Relative frequency
missing	-9	19	0.05%
don't know	-1	8	0.02%
[Value >= 0]	1	42143	99.94%
	Total	42170	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
48.08	27	16.0	101.0	18.69	42143

Value label	Value	Absolute frequency	Relative frequency
refusal	-2	6	0.01%
don't know	-1	26	0.06%
[Value >= 0]	1	45160	99.93%
	Total	45192	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
47.51	32	16.0	102.0	18.69	45160

Mean	Number Missing	Min	Max	Std Dev	N
47.72	0	16.0	101.0	18.75	44837

Mean	Number Missing	Min	Max	Std Dev	N
47.36	0	16.0	104.0	18.6	47074

Mean	Number Missing	Min	Max	Std Dev	N
47.13	0	16.0	103.0	18.51	49692

Mean	Number Missing	Min	Max	Std Dev	N
46.63	0	16.0	102.0	18.46	54568

Mean	Number Missing	Min	Max	Std Dev	N
45.64	0	16.0	101.0	18.18	50994

Value label	Value	Absolute frequency	Relative frequency
missing	-9	31657	34.29%
refusal	-2	24	0.03%
don't know	-1	31	0.03%
[Value >= 0]	1	60622	65.66%
	Total	92334	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
38.73	31712	0	101.0	23.17	60622

Value label	Value	Absolute frequency	Relative frequency
missing	-9	2	0.14%
[Value >= 0]	1	1433	99.86%
	Total	1435	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
12.55	2	10.0	15.0	1.7	1433

Mean	Number Missing	Min	Max	Std Dev	N
12.54	0	10.0	15.0	1.7	1623

Mean	Number Missing	Min	Max	Std Dev	N
12.59	0	10.0	16.0	1.7	1766

Mean	Number Missing	Min	Max	Std Dev	N
12.53	0	10.0	16.0	1.66	1663

Mean	Number Missing	Min	Max	Std Dev	N
12.51	0	10.0	16.0	1.69	2100

Mean	Number Missing	Min	Max	Std Dev	N
12.56	0	10.0	16.0	1.71	2506

Mean	Number Missing	Min	Max	Std Dev	N
12.48	0	10.0	16.0	1.7	2821

Mean	Number Missing	Min	Max	Std Dev	N
12.54	0	10.0	16.0	1.73	3272

Mean	Number Missing	Min	Max	Std Dev	N
12.52	0	10.0	15.0	1.7	3630

Mean	Number Missing	Min	Max	Std Dev	N
12.59	0	10.0	15.0	1.68	3461

Mean	Number Missing	Min	Max	Std Dev	N
12.56	0	10.0	15.0	1.67	3655

Mean	Number Missing	Min	Max	Std Dev	N
12.56	0	10.0	16.0	1.68	4045

Mean	Number Missing	Min	Max	Std Dev	N
12.53	0	10.0	15.0	1.7	4427

Mean	Number Missing	Min	Max	Std Dev	N
12.52	0	10.0	15.0	1.67	5018

Mean	Number Missing	Min	Max	Std Dev	N
12.51	0	10.0	15.0	1.7	4899

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dvage

Datafiles

Index term

Derived variable note:

Derived variable note:

Question asked in the latest wave:

hhgrid_w15.dvage

Question label:

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Saved variables

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Social life during COVID-19 in France, Germany, Italy and the UK

Insights 2026: Children and young people’s futures

The disappearance of the hump shape in illbeing by age

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Datafiles

Index term

Derived variable note:

Derived variable note:

Question asked in the latest wave:

hhgrid_w15.dvage

Question label:

Wave 15 (o_dvage child)

Wave 14 (n_dvage child)

Wave 13 (m_dvage child)

Wave 12 (l_dvage child)

Wave 11 (k_dvage child)

Wave 10 (j_dvage child)

Wave 9 (i_dvage child)

Wave 8 (h_dvage child)

Wave 7 (g_dvage child)

Wave 6 (f_dvage child)

Wave 5 (e_dvage child)

Wave 4 (d_dvage child)

Wave 3 (c_dvage child)

Wave 2 (b_dvage child)

Wave 1 (a_dvage child)

Wave 15 (o_dvage indall)

Wave 14 (n_dvage indall)

Wave 13 (m_dvage indall)

Wave 12 (l_dvage indall)

Wave 11 (k_dvage indall)

Wave 10 (j_dvage indall)

Wave 9 (i_dvage indall)

Wave 8 (h_dvage indall)

Wave 7 (g_dvage indall)

Wave 6 (f_dvage indall)

Wave 5 (e_dvage indall)

Wave 4 (d_dvage indall)

Wave 3 (c_dvage indall)

Wave 2 (b_dvage indall)

Wave 1 (a_dvage indall)

Wave 15 (o_dvage indresp)

Wave 14 (n_dvage indresp)

Wave 13 (m_dvage indresp)

Wave 12 (l_dvage indresp)

Wave 11 (k_dvage indresp)

Wave 10 (j_dvage indresp)

Wave 9 (i_dvage indresp)

Wave 8 (h_dvage indresp)

Wave 7 (g_dvage indresp)

Wave 6 (f_dvage indresp)

Wave 5 (e_dvage indresp)

Wave 4 (d_dvage indresp)

Wave 3 (c_dvage indresp)

Wave 2 (b_dvage indresp)

Wave 1 (a_dvage indresp)

Wave 7 (g_dvage indsamp)

Wave 15 (o_dvage youth)

Wave 14 (n_dvage youth)

Wave 13 (m_dvage youth)

Wave 12 (l_dvage youth)

Wave 11 (k_dvage youth)

Wave 10 (j_dvage youth)

Wave 9 (i_dvage youth)

Wave 8 (h_dvage youth)

Wave 7 (g_dvage youth)

Wave 6 (f_dvage youth)

Wave 5 (e_dvage youth)

Wave 4 (d_dvage youth)

Wave 3 (c_dvage youth)

Wave 2 (b_dvage youth)

Wave 1 (a_dvage youth)

Code creator 0

Saved variables

What else is Understanding Society doing?

Join our Strategic Oversight Board

Social life during COVID-19 in France, Germany, Italy and the UK

Insights 2026: Children and young people’s futures

The disappearance of the hump shape in illbeing by age

Email newsletter

Code creator
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