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Mainstage Variable

doby

Year of birth

Datafile

indresp

Index term

Socio-demographic Characteristics

Value label	Value	Absolute frequency	Relative frequency
missing	-9	1	0.01%
proxy	-7	734	5.09%
[Value >= 0]	1	13684	94.9%
	Total	14419	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
1960.99	735	1907.0	1992.0	19.02	13684

Value label	Value	Absolute frequency	Relative frequency
missing	-9	1	0.01%
proxy	-7	683	4.59%
[Value >= 0]	1	14189	95.4%
	Total	14873	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
1960.28	684	1907.0	1991.0	18.99	14189

Value label	Value	Absolute frequency	Relative frequency
missing	-9	1	0.01%
proxy	-7	677	4.4%
[Value >= 0]	1	14714	95.6%
	Total	15392	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
1959.53	678	1907.0	1990.0	18.89	14714

Value label	Value	Absolute frequency	Relative frequency
missing	-9	1	0.01%
[Value >= 0]	1	15616	99.99%
	Total	15617	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
1958.83	1	1906.0	1990.0	18.7	15616

Value label	Value	Absolute frequency	Relative frequency
missing	-9	1	0.01%
[Value >= 0]	1	15790	99.99%
	Total	15791	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
1957.76	1	1906.0	1988.0	18.55	15790

Value label	Value	Absolute frequency	Relative frequency
missing	-9	1	0.01%
[Value >= 0]	1	16237	99.99%
	Total	16238	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
1957.0	1	1904.0	1987.0	18.54	16237

Value label	Value	Absolute frequency	Relative frequency
missing	-9	1	0.01%
[Value >= 0]	1	16596	99.99%
	Total	16597	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
1956.17	1	1904.0	1986.0	18.46	16596

Value label	Value	Absolute frequency	Relative frequency
missing	-9	1	0.01%
refusal	-2	1	0.01%
[Value >= 0]	1	18865	99.99%
	Total	18867	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
1955.34	2	1904.0	1985.0	18.57	18865

Value label	Value	Absolute frequency	Relative frequency
refusal	-2	1	0.01%
[Value >= 0]	1	15602	99.99%
	Total	15603	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
1954.41	1	1898.0	1985.0	18.61	15602

Value label	Value	Absolute frequency	Relative frequency
missing	-9	4	0.03%
refusal	-2	1	0.01%
[Value >= 0]	1	15618	99.97%
	Total	15623	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
1953.38	5	1898.0	1983.0	18.65	15618

Value label	Value	Absolute frequency	Relative frequency
don't know	-1	1	0.01%
[Value >= 0]	1	10905	99.99%
	Total	10906	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
1952.79	1	1898.0	1982.0	18.74	10905

Value label	Value	Absolute frequency	Relative frequency
refusal	-2	1	0.01%
don't know	-1	2	0.02%
[Value >= 0]	1	11190	99.97%
	Total	11193	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
1952.07	3	1898.0	1981.0	18.74	11190

Value label	Value	Absolute frequency	Relative frequency
refusal	-2	1	0.01%
[Value >= 0]	1	9437	99.99%
	Total	9438	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
1952.05	1	1898.0	1980.0	18.47	9437

Value label	Value	Absolute frequency	Relative frequency
refusal	-2	1	0.01%
don't know	-1	1	0.01%
[Value >= 0]	1	9247	99.98%
	Total	9249	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
1950.77	2	1898.0	1979.0	18.49	9247

Value label	Value	Absolute frequency	Relative frequency
refusal	-2	2	0.02%
[Value >= 0]	1	9479	99.98%
	Total	9481	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
1949.96	2	1898.0	1978.0	18.44	9479

Value label	Value	Absolute frequency	Relative frequency
refusal	-2	2	0.02%
[Value >= 0]	1	9598	99.98%
	Total	9600	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
1948.92	2	1898.0	1977.0	18.39	9598

Value label	Value	Absolute frequency	Relative frequency
refusal	-2	4	0.04%
[Value >= 0]	1	9841	99.96%
	Total	9845	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
1947.84	4	1895.0	1976.0	18.45	9841

Value label	Value	Absolute frequency	Relative frequency
refusal	-2	3	0.03%
don't know	-1	3	0.03%
[Value >= 0]	1	10258	99.94%
	Total	10264	100.0%

Mean	Number Missing	Min	Max	Std Dev	N
1946.4	6	1894.0	1975.0	18.47	10258

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The Economic and Social Research Council is the primary funder of the study
The Study is led by a team at the Institute for Social and Economic Research (ISER) at the University of Essex.