Health and Employment after Fifty (HEAF): a new prospective cohort study

BMC Public Health

Table 8 HEAF baseline response rates by age and sex

	N (%) responded	% of all
		Sample^a	Population^b
Date of birth (approx. age at baseline^c)
1948–1922 (60–64)	3444 (28)	42	30
1953–1957 (55–59)	2582 (20)	32	32
1958–1962 (50–54)	2108 (14)	26	37
		(100)	(100)
Sex:
Male	3707 (18)	46	49
Female	4427 (22)	54	51
		(100)	(100)

^acolumn %
^bPopulation of England aged 50–64 years, estimated for June 2013 by the Office for National Statistics (http://ons.gov.uk/ons/taxonomy/index.html?nscl=Population#tab-data-tables, accessed 12/3/15)
^cbased on the age when sampling lists were drawn up (a minority of subjects crossed age boundaries by the time of response – e.g., 557 were aged 65 years by then)

ISSN: 1471-2458