29(30)
10 Appendix
Table A1.
Structure of attrition for generating the study population
Register
Condition
Observations
Multi-
generation
register
The number of children born in the years 1972–1977
for whom we can identify a mother and a father in
the multi-generation register
672 457
LOUISE
Children should be living in Sweden between 2003
and 2008
564 564
SYSS
The children should have a mother aged 16–65 who
was living in Sweden in the years 1986–1991
491 590
SYSS
The children should have a father aged 16–65 who
was living in Sweden in the years 1986–1991
470 564
The children should have both a father and a mother
aged 16–65 who were living in Sweden in the years
1986–1991
Study population
462 984
Two adults living together in a household
(single households are removed) and the other
partner is not the individual’s biological mother or
father
Study population for the assortative mating analysis
62 036
Source: Socialförsäkringsdatabasen, IFAU.
