Table
13
Table 13
presents live births by legitimacy status, and per cent illegitimate for as many
years as possible between 1990 and 1998.
Description
of variables: Legitimacy status in this table is shown as legitimate,
illegitimate and of unknown status.
Legitimate
refers to persons born of parents who were married at the time of birth in
accordance with the laws of the country or area. Illegitimate refers to children of
parents who according to national law, were not married at the time of birth,
regardless of whether these children have been recognized or legitimized after
birth[1].
Therefore,
illegitimate births (unless otherwise noted) are assumed to include births to
persons in consensual unions or in unions celebrated in a manner other than the
legally prescribed one as, for example, by a religious ceremony instead of the
prescribed civil contract. Within
this context, they include all extra-nuptial live births, whether they are
births of foundlings (children acknowledged by no parent), children acknowledged
or recognized by both their father and mother or those acknowledged by their
mother only.
Births of
unknown legitimacy status are assumed to be illegitimate.
Percentage
computation: The percentage illegitimate is the ratio of the number of
illegitimate live births, in a year, including those of unknown legitimacy
status, per 100 total live births shown for the same year.
Reliability
of data: Data from civil registers of live births which are reported as
incomplete (less than 90 per cent completeness) or of unknown completeness are
considered unreliable and are set in italics rather than in roman type. Table 1 and the technical notes for that
table provide more detailed information on the completeness of live-birth
registration. For more information
about the quality of vital statistics data in general, and the information
available on the basis of the completeness estimates in particular, see section
4.2 of the Technical Notes.
Limitations:
Statistics on live births by legitimacy status are subject to the same
qualifications which have been set forth for vital statistics in general and
birth statistics in particular as discussed in section 4 of the Technical
Notes.
The reliability of the data, on indication of which
is described in the above paragraph, is an important factor in considering the
limitations. In addition, some live
births are tabulated by date of registration and not by date of occurrence,
these have been indicated by a (+).
Whenever the lag between the date of occurrence and date of registration
is prolonged and, therefore, a large proportion of the live-birth registrations
are delayed, birth statistics for any given year may be seriously affected.
Another
factor that limits international comparability is the practice of some countries
or areas not to include in live-birth statistics infants who were born alive but
died before registration or within the first 24 hours of live, thus
underestimating the total number of live births. Statistics of this type are
footnoted.
Comparability
of illegitimacy ratios is affected by differences between countries in the legal
definition of illegitimacy. In most
countries or areas, illegitimate births are only those born to unmarried
mothers; children born of a married woman and a person other than her husband
are considered issue of the legal union and hence legitimate. However, in a few cases such children
are reported as illegitimate.
There is
also a difference between countries or areas in the reference date for
definitions of illegitimacy. In
some countries or areas, the marital status of the parents at the time of the
child’s birth determines the status of legitimacy; in others, the effective
status is that at the time the birth is registered.
As has
been noted in connection with the tables on total live births, there may be a
delay between time of birth and registration of birth. In cases in which there is a time delay,
it is possible that the legitimacy status of the child may change before
registration of his or her birth.
This factor may limit comparability.
The type
of union that establishes legitimacy also differs from one country or area to
another. In most countries or areas
religious marriage is not considered legal unless it is accompanied by a civil
ceremony. Hence, children born to
persons who have not complied with the civil requirements would be considered
illegitimate by law, even though the marriage of their parents was accepted
socially.
The same
problem exists in countries or areas where consensual unions are more socially
accepted. Where such unions are
numerous in relation to legal marriages (because of either social or tribal
custom or other reasons), the proportion of “illegitimate births” will also be
high in relation to total births.
Also,
another problem exists where live-births by age of mother or live-birth order
are only presented for legitimate live-birth, rather than total
live-births. In such countries or
areas, the changing distribution of live-births by age of mother or live-birth
order will not accurately reflect overall changes in the pattern of
childbearing, especially if the ratio of legitimate and illegitimate births
changes during the time period.
Comparability
of illegitimacy statistics is also affected by national attitudes towards
illegitimacy. Decision to conceal
illegitimacy or to misstate it on the record is conditioned by attitudes in the
society in which the mother lives and also by her economic and social
circumstances within the society.
The impact of these factors is very difficult to quantify, but it must be
borne in mind when data from this table are used for analytical
purposes.
Finally,
it should be noted that rates may be affected by the number of births included
for which the presumption of legitimacy status has been made. In preparing this
table the presumption of illegitimacy for cases of unknown legitimacy status has
been based on the fact that the place showing high frequencies of “unknowns” are
those in which there are large numbers of consensual unions, and it is assumed
that the “unknowns” are related to this segment of the population. The absence of frequencies in the
unknown legitimacy status group does not necessarily indicate completely
accurate reporting and tabulation of legitimacy status. It could be the case that unknowns have
been eliminated by assigning them legitimacy status before
tabulation.
Coverage:
Live births by legitimacy status and per cent illegitimate are shown for
countries or areas.
Earlier
data: Live births by legitimacy status and per cent illegitimate have been shown
previously in issues of the Demographic Yearbook featuring natality. For information on years covered,
readers should consult the Index.
[1]
Principles and
Recommendations for a Vital Statistics System Revision 2, United Nations Publication, Sales
No. E.01.XVII.10, Para.132-136, New York, 2001.