3311.4 - Demography, South Australia, 2000
ARCHIVED ISSUE Released at 11:30 AM (CANBERRA TIME) 13/12/2001
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Age-specific death rates
A significant number of long-term and short-term travellers (i.e. overseas visitors to Australia on arrival and Australian residents going abroad) state exactly 12 months or one year as their intended period of stay. Many of them stay for less than that period and on their departure from, or return to, Australia are therefore classified as short-term. Accordingly, in an attempt to maintain consistency between arrivals and departures, movements of travellers who report their actual or intended period of stay as being one year exactly are randomly allocated to long-term or short-term in proportion to the number of movements of travellers who report their actual length of stay as up to one month more, or one month less, than one year. Children (divorce collection) Children in the divorce collection are unmarried children of the marriage who were aged under 18 years at the time of application for divorce. Under the Family Law Act 1975, these may include (in certain cases) adopted and exnuptial children and children from a former marriage. Children who are married or aged 18 years or more are not subject to custody and guardianship orders and are excluded. Children (marriage collection) Children in the marriage collection refer to persons under 16 years of age born from previous marriages. The term children should not be confused with the term previous births used in births data (see Previous births). Confinement A pregnancy which results in at least one live birth. Crude birth rate The crude birth rate is the number of live births registered during the calendar year, per 1,000 estimated resident population at 30 June of that year. For years prior to 1992, the crude birth rate was based on the mean estimated resident population for the calendar year. Crude death rate The crude death rate is the number of deaths registered during the calendar year, per 1,000 estimated resident population at 30 June of that year. For years prior to 1992, the crude death rate was based on the mean estimated resident population for the calendar year. Crude divorce rate The crude divorce rate is the number of decrees absolute granted during the calendar year, per 1,000 estimated resident population at 30 June of that year. For years prior to 1992, the crude divorce rate was based on the mean estimated resident population for the calendar year. In the interpretation of this rate, it must be kept in mind that a large and varying proportion of the population used in the denominator is unmarried or below the minimum age of marriage. Crude marriage rate The crude marriage rate is the number of marriages registered during the calendar year, per 1,000 estimated resident population at 30 June of that year. For years prior to 1992, the crude marriage rate was based on the mean estimated resident population for the calendar year. In the interpretation of this rate, it must be kept in mind that a large and varying proportion of the population used in the denominator is below the minimum age of marriage or is already married. Date of final separation The date of final separation is the date, given on the application for divorce, from which the period of living apart is calculated for the purpose of establishing grounds for divorce. In determining the date of final separation, a single period of resumed cohabitation of less than three months may be ignored, provided the periods of living apart before and after resumed cohabitation amount to a total of 12 months or more. Divorce Decree absolute of dissolution of marriage. Duration of marriage Duration of marriage is the interval measured in completed years between the date of marriage and the date of divorce. Duration of marriage until separation Duration of marriage until separation is the interval measured in completed years between the date of marriage and the date of separation. Estimated resident population (ERP) The official measure of the population of Australia is based on the concept of residence. It refers to all people, regardless of nationality or citizenship, who usually live in Australia, with the exception of foreign diplomatic personnel and their families. It includes usual residents who are overseas for less than 12 months. It excludes overseas visitors who are in Australia for less than 12 months. Exnuptial birth An exnuptial birth is the birth of a child whose parents are not legally married to each other at the time of birth. First marriage rates First marriage rates are the number of men and women marrying for the first time during the calendar year, per 1,000 population of never married men and women aged 15 years and over at 30 June. Household A household is a group of two or more related or unrelated people who usually reside in the same dwelling, who regard themselves as a household and who make common provision for food or other essentials for living; or a person living in a dwelling who makes provision for his or her own food and other essentials for living without combining with any other person. Households include group households of unrelated persons, same-sex couple households, single parent households as well as one-person households. A household usually resides in a private dwelling (including caravans etc. in caravan parks). Persons usually resident in non-private dwellings, such as hotels, motels, boarding houses, jails and hospitals are not included in household estimates. This definition of a household is consistent with the definition used in the Census. The number of households can be either based on count or estimated resident population. Indigenous birth The birth of a live-born child where either the mother or the father was identified as being of Aboriginal or Torres Strait Islander origin on the birth registration form. Indigenous births in Indigenous population estimates/projections are those which result by applying assumed age-specific fertility rates to Aboriginal and Torres Strait Islander mothers in reproductive ages. Indigenous death The death of a person who is identified as being of Aboriginal or Torres Strait Islander origin on the death registration form. Indigenous origin Persons who identify as being of Aboriginal or Torres Strait Islander origin. Infant death An infant death is the death of a live-born child who dies before completing his or her first birthday. Infant mortality rate The number of deaths of children under one year of age in a calendar year per 1,000 live births in the same calendar year. Intercensal discrepancy Intercensal discrepancy is the difference between two estimates of a census year population, the first is based on the latest census and the second arrived at by updating the previous census date estimate with intercensal components of population change which take account of information available from the latest census. It is caused by errors in the start and/or finish population estimates and/or in estimates of births, deaths or migration in the intervening period which cannot be attributed to a particular source. Life expectancy Life expectancy refers to the average number of additional years a person of a given age and sex might expect to live if the age-specific death rates of the given period continued throughout his or her lifetime. Long-term arrivals Long-term arrivals are overseas visitors who intend to stay in Australia for 12 months or more (but not permanently), or Australian residents returning after an absence of 12 months or more overseas. Long-term departures Long-term departures are Australian residents who intend to stay abroad for 12 months or more (but not permanently), or overseas visitors departing who stayed 12 months or more in Australia. Marital status There are two separate concepts of marital status measured by the ABS. These are registered marital status and social marital status. In this publication, marital status relates to registered marital status which depends on formally registered marriages or divorces for which the partners hold a certificate. The four categories of registered marital status are: never married; married; widowed, and divorced. Marriage Refers to registered marriages only. Under the Marriage Act 1961, a marriage may be celebrated by a minister of religion registered as an authorised celebrant, by a district registrar or by other persons authorised by the Attorney-General. Notice of the intended marriage must be given to the celebrant at least one calendar month but within six calendar months before the marriage. A celebrant must transmit an official certificate of the marriage for registration in the State or Territory in which the marriage took place. (See also references to crude marriage rates; first marriage rates; re-marriage rates; duration of marriage, and marital status.) Median value The median value (e.g. of age, duration, or interval) is that value which divides the relevant population into two equal parts, half falling below the value, and half exceeding it. Where the value for a particular record has not been stated, that record is excluded from the calculation. Multiple birth A multiple birth is a confinement which results in two or more issue, at least one of which is live-born. Net overseas migration Net overseas migration is net permanent and long-term overseas migration plus an adjustment for the effect of category jumping. Net reproduction rate The net reproduction rate represents the average number of daughters that would be born to a group of women if they are subject to the fertility and mortality rates of a given year during their future life. It indicates the extent to which the population would reproduce itself. The net reproduction rate is obtained by multiplying the age-specific birth rates (for female births only) by the proportion of survivors at corresponding ages in a life table and adding the products. Nuptial birth A nuptial birth is the birth of a child born of parents who are legally married at the time of birth. Nuptial first confinement A nuptial first confinement is the first confinement in the current marriage and therefore does not necessarily represent the woman's first ever confinement resulting in a live birth. Nuptiality Nuptiality relates to the registered marital status of persons and the events such as marriages, divorces and widowhood. Confinements and births are identified as being nuptial where the father registered was married to the mother at the time of birth, or where the husband died during the pregnancy. Confinements and children of Indigenous mothers considered to be tribally married are classified as nuptial. Other confinements, and the children resulting from them, are classified as exnuptial whether or not both parents were living together at the time of birth. Paternity-acknowledged birth A paternity-acknowledged birth refers to an exnuptial birth where paternity was acknowledged by the father. Permanent arrivals (settlers) Permanent arrivals (settlers) are travellers who hold migrant visas (regardless of stated intended period of stay); New Zealand citizens who indicate an intention to settle; or those who are otherwise eligible to settle (e.g. overseas-born children of Australian citizens). This definition of settlers is used by the Department of Immigration and Multicultural Affairs (DIMA). Prior to 1985 the definition of settlers used by the ABS was the stated intention of the traveller only. Numerically the effect of the change in definition is insignificant. The change was made to avoid the confusion caused by minor difference between data on settlers published separately by the ABS and DIMA. Permanent departures Permanent departures are Australian residents (including former settlers) who on departure state that they do not intend to return to Australia. Previous births Previous births refer to children born alive (who may or may not be living) to a mother in her current relationship prior to the registration of the current birth in the processing period. Previous issue See Previous births. Remarriage rates Remarriage rates are the number of remarrying men and women per 1,000 population of widowed and divorced men or women of the same age at 30 June. The rates are separately calculated for widowed or divorced men or women by appropriately adjusting the numerator and denominator of the rates. Sex ratio The sex ratio relates to the number of males per 100 females. The sex ratio is defined for total population, at birth, at death and among age groups by appropriately selecting the numerator and denominator of the ratio. Standardised death rates Standardised death rates enable the comparison of death rates between populations with different age structures by relating them to a standard population. The ABS standard populations relate to the years ending in 1 (e.g. 1991). The current standard population is all persons in the 1991 Australian population. They are expressed per 1,000 or 100,000 persons. There are two methods of calculating standardised death rates: (1) The direct method-this is used when the populations under study are large and the age-specific death rates are reliable. It is the overall death rate that would have prevailed in the standard population if it had experienced at each age the death rates of the population under study. The direct method is used for comparing States and Territory and Australia rates. (2) The indirect method-this is used when the populations under study are small and the age-specific death rates are unreliable or not known. It is an adjustment to the crude death rate of the standard population to account for the variation between the actual number of deaths in the population under study and the number of deaths which would have occurred if the population under study had experienced the age-specific death rates of the standard population. The indirect method is used for comparison of the Aboriginal and Torres Strait Islander rates and Statistical Local Area rates. State or Territory of registration State or Territory of registration refers to the State or Territory in which the event was registered or the State or Territory in which the divorce was granted. Statistical Local Areas Statistical Local Areas (SLAs) consist of one or more Census Collection Districts at a census date. They can be based on legal Local Government areas or parts thereof, or any unincorporated area. They cover, in aggregate, the whole of Australia without gaps or overlaps. SLAs are used in defining and compiling data at the part of State level. Further details are included in Australian Standard Geographical Classification (ASGC) (Cat. no. 1216.0). Total fertility rate The sum of age-specific fertility rates (live births at each age of mother per female population of that age). It represents the number of children a woman would bear during her lifetime if she experienced current age-specific fertility rates at each age of her reproductive life. Year of registration Data presented on year of registration basis relate to the year in which an event was registered. Document Selection These documents will be presented in a new window.
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