Demographic Yearbook of the Czech Republic
Methodology | Contents |
METHODOLOGICAL NOTES
Presented Demographic Yearbook underwent changes at part H.Migration. Are omitted data on reason of migration and educational attainment, as the sources of the data on migration–the Alien Information System and the Central Population Register Record–do not include such information. The CZSO receives the data from the Directorate of Alien and Border Police Service and from the Ministry of the Interior of the CR.
All data refer to the resident population of the Czech Republic, irrespective of citizenship. Since 2001, the figures include (in accordance with the Population and Housing Census 2001) foreigners with long-term stay (i.e., the stay based on visa over 90 days, as stipulated by Act No. 326/1999 Coll.) and foreigners with granted asylum status (in compliance with Act No. 325/1999 Coll.). Since 1st May 2005, in accordance with amendment No. 326/1999 Coll., the figures include citizens of the European Union with temporary stay on the territory of the Czech Republic, and citizens of other countries with long-term stay. The data contain also information on events (marriages, births and deaths) of permanent residents of CR that occurred abroad.
On 1st January 2000, constitutional Act No.347/1997 Coll., on the establishment of higher self-governing territories entered into force. Since 2000, districts and municipalities have been classified according to these new self-governing territorial units (regions). Regions and districts were assigned new codes of CZ-NUTS classification (NUTS 3 and NUTS 4). These were prepared according to the methodology of Eurostat and introduced by the CZSO provision from 27th April 1999. The classification also introduced 8 areas (NUTS 2) designed for statistical purposes and international comparisons. The classification by size groups of municipalities is used by the CZSO to define rural and urban population (i.e. in municipalities up to 2 thousand and over 2 thousand inhabitants).
Population figures for districts are recalculated according to the territorial changes stipulated in Act No. 387/2004 Coll., on changes of district borders. It includes transfer of 28 municipalities between regions (NUTS 3) and districts (NUTS 4):
- municipality Senorady from the district Třebíč (region Vysočina) to the district Brno-venkov (region Jihomoravský kraj)
- municipalities Borač, Borovník, Černvír, Dolní Loučky, Doubravník, Drahonín, Horní Loučky, Kaly, Katov, Křižínkov, Kuřimská Nová Ves, Kuřimské Jestřabí, Lubné, Nedvědice, Níhov, Olší, Pernštejnské Jestřabí, Rojetín, Řikonín, Skryje, Tišnovská Nová Ves, Újezd u Tišnova, Vratislávka and Žďárec from the district Žďár nad Sázavou (region Vysočina) to the district Brno-venkov (region Jihomoravský kraj)
- municipalities Huzová, Moravský Beroun and Norberčany from the district Bruntál (region Moravskoslezský kraj) to the district Olomouc (Olomoucký kraj)
Population and vital statistics in the CR for 1921 - 2005
The retrospective of population and vital statistics encompasses events, which took place on the territory of the CR. By 1929, the number of deaths under 1 month of age had been measured instead of the number of deaths under 28 days of age. As of 1st July 1954, internal and external migration relating to the CR has been encompassing all persons (including foreigners) with permanent residence in the CR and of 1st January 2001 all persons with permanent residence in the CR and foreigners with 90-days-and-over visa and foreigners with asylum status granted. Since 1st May 2005, the figures include also citizens of the European Union with temporary stay on the territory of the Czech Republic, and citizens of other countries with long-term stay.
A. Population and vital statistics: overview
Towns (a total of 523, with the exception of Brno, Ostrava, Plzeň and Praha) are those that enjoyed the status of town (were governed by municipal authorities) on 1st January 2005.
B. Marriages
Except table B.02, all tables are territorially classified by residence of groom.
C. Divorces
Table C.01 lists all petitions for divorce filed, while the other tables contain information for divorced marriages only.
D. Births
Decree No. 11/1988 of the Ministry of Health of the CSR from 22nd January 1988 defines a live-born child as a child fully expelled or removed out of the mother's body, who gives a sign of life and whose birth weight is (a) 500 g or more, or (b) lower than 500 g, if it survives 24 hours after delivery. The signs of life include respiration, heartbeat, umbilicus pulsation or active movement of muscles, even if umbilical cord is not interrupted or placenta delivered. A stillborn child is a child fully expelled or removed out of the mother's body, not showing any sign of life and whose birth weight is 1,000 g or more.
E. Abortions
The tables listing abortions are prepared from a set of individual data taken over by the CZSO from the Institute of Health Information and Statistics of the CR. The abortion is termination of pregnancy, in which (a) the foetus does not show any sign of life and its birth weight is below 1,000 g or cannot be measured, if the pregnancy takes less than 28 weeks, (b) the foetus shows at least one of the signs of life and its birth weight is below 500 g, but it does not live longer than 24 hours after delivery, (c) the foetal egg without a foetus or gestational decidua is removed out of the female's uterus. Considered as abortions are also cases of termination of ectopic pregnancy or induced abortions carried out as stipulated in special regulations. The former were included under induced abortions in 1987 to 1991 and under other abortions as of 1992. On 1st January 1994, the Ministry of Health of the CR introduced new printed forms with more detailed nomenclatures of the marital status and education of women and these were applied in the processing without any adjustment. Unlike the tables brought out by the Institute of Health Information and Statistics, figures in this publication include abortions of all women residing in the CR (i.e. including foreigners). In 2000, the Institute of Health Information and Statistics amended the coding of abortion types again. Code 2 defines vacuum aspiration (formerly abortion within 8 weeks) and code 2 refers to other legal abortions (formerly abortions after 8 weeks). This amendment was taken account of in Tables E.01 and E.03.
G. Deaths by cause
On 1st January 1994 the 10th decennial revision of the International Statistical Classification of Diseases and Related Problems (ICD-10), was put into use in the Czech Republic by Act 278/1992 of the Czech National Council. The organization responsible for its use in practice is the Institute of Health Information and Statistics of the Czech Republic. Unlike the 9th revision, ICD-10 uses a four--character alphanumerical code consisting of one letter and three digits. However, a three-character alphanumerical code is employed for basic statistical treatment. The range of the causes of death has been considerably expanded, and names and the order of death cause chapters. External causes of morbidity and mortality (formerly supplementary classification E) are classified to a separate chapter (XX).
H. Migration
Migration for a higher self-governing territorial unit is defined as the sum of the volume for lower self-governing territorial units plus migration between lower self-governing territorial units. Gross migration is the sum of immigration and emigration within a given self-governing territorial unit. Internal migration not includes cases of migrating between town planning districts of the capital city of Prague.
Indicators
Indicators included in this publication are presented herein. All indicators refer to one calendar year. The calculation of indicators is based on demographic events or population, which refer to the same calendar year. The population used for calculation of rates is the population at mid-year, defined as population as of 1st July of a given year. In all of the sets, the ‘age' (in terms of years, months or weeks) always refers to completed age. Only the length of life in days given for deaths of infants refers to the difference between the date of birth and the date of death.
Late foetal mortality rate
The number of stillbirths per 1,000 total births.
Infant mortality rate
The number of deaths under 1 year of age per 1,000 live births.
Neonatal mortality rate
The number of deaths under 28 days of age per 1,000 live births.
Perinatal mortality rate
The number of stillbirths and deaths under 7 days of age per 1,000 total births.
Fertility rate by age (age-specific fertility rate)
The number of live births born to women at particular age (or age group) per 1,000 women at given age (age group).
Total fertility rate (the sum of fertility rates by age)
The average number of children that would be born alive to a woman provided that age-specific fertility rates of a given year remain unchanged during her childbearing period (age 15-49).
Gross reproduction rate
The average number of girls that would be born alive to a woman provided that age-specific fertility rates of a given year remain unchanged during her childbearing period (age 15-49).
Net reproduction rate
The average number of girls that would be born alive to a woman and will survive until the age of her mother assuming that age-specific fertility and mortality rates of a given year remain unchanged during her childbearing period (age 15-49).
Abortion rate by age (age-specific abortion rate)
The number of abortions of women at particular age (or age group) per 1,000 women at given age (age group).
Total abortion rate (the sum of abortion rates by age)
The average number of abortions per woman provided that age-specific abortion rates of a given year remain unchanged during her childbearing period (age 15-49).
Pregnancy rate by age (age-specific pregnancy rate)
The number of pregnancies of women (the sum of live births, stillbirths and abortions) at particular age (or age group) per 1,000 women at given age (age group).
Total pregnancy rate (the sum of pregnancy rates by age)
The average number of pregnancies per woman provided that age-specific pregnancy rates of a given year remain unchanged during her childbearing period (age 15-49).
Mortality rate by sex and age
The number of deaths of particular sex and at particular age (or age group) per 1,000 population of given sex and at given age (age group).
Mortality rate by sex, age and chapter of causes of death
The number of deaths of particular sex and at particular age (or age group) by particular chapter of causes of death per 100,000 population of given sex and at given age (age group).
Life tables indicators
For detailed methodological notes see the publication of CZSO Life Tables for the CR and Regions.Death probability (qx)
The probability that an x-year-old individual will die in a given period, i.e. will die before the exact age of x+1.
Probability of survival (px)
The probability that an x-year-old individual will not die in a given period and will survive to the age of x+1.
Table number of survivors (lx)
The hypothetical number of individuals alive at the exact age of x out of 100 000 births (table root - I0), given the mortality conditions of the reference period.
Table number of deaths (dx)
The hypothetical number of individuals who die at the age of x.
Table number of person-years (Lx)
The hypothetical average number of individuals alive at the age of x; calculated as the average of two subsequent table numbers of survivors (except for the age of 0).
Auxiliary indicator (Tx)
The number of years of life to be lived by the table generation (not of an individual) at a given age.
Life expectancy (ex)
The number of years to be lived by an x-year-old individual, given the mortality conditions of the reference period. Synthetic indicator, displaying mortality conditions in all age groups.