The contents of a birth declaration vary widely among the 44 countries surveyed. The child's gender and date of birth are registered on the birth certificate in all the countries, as is the place of birth. All countries collect other information, which in many cases includes the child's
name and personal identifier, the mother's and father's age and the marital status of both parents. A smaller number ask for additional characteristics about the new-born child on the declaration, often regarding legitimacy, citizenship, whether live or stillborn, multiple or single birth, and birth order. In 14 countries (BE, BG, EL, LV, LU, AT, PL, PT, RO, SK, NO, AL, BA and AZ), all five of the above characteristics are registered on the birth certificate.
Data on the person who makes the declaration of birth are also registered. In 32 countries, this person's name is on the declaration, while his/her address is registered in 23.
Information on type of birth (spontaneous delivery, caesarean section, forceps delivery, etc.) and place of delivery is collected by seven countries (BE, EE, PL, AL, BY, BA and MD) and 26 (BE, BG, EE, IE, EL, ES, FR, HR, LU, MT, NL, PL, PT, RO, SI, SK, FI, UK, CH, RS, AL, BY, BA, XK, MD and GE) respectively. However, 18 countries (CZ, DK, DE, IT, CY, LV, LT, HU, AT, PT, SE, LI, NO, ME, TR, UA, AM, AZ and RU)12
do not register any details about the place of delivery. The birth declaration in 19 countries includes duration of pregnancy (BE, BG, CZ, EE, IE, EL, HU, MT, AT, PL, RO SI, SK, CH, AL, BY, XK, MD and GE)13
As mentioned above, birth declarations usually include data on parents as well: often their age, marital status, nationality and country of birth. All these details (for both parents) can be found on the declarations in 16 countries (BE, BG, DE, EE, EL, FR, LV, LU, MT, AT, PT, SK, LI, AL, BY, RU, AM, AZ and GE)14
. RO collects all these details only for mothers. Information on the highest level of educational attainment is collected in 19 countries (BE, BG, CZ15
, EE, EL, HR, HU, AT, PL, RO, SK, ME, AL, BY, BA, XK, RU, AM and
AZ), in RO and RU only for the mothers.
Collected children's and parents' characteristics as registered in birth declarations in the countries varies widely among countries. BG and EE register 27 of the 30 selected items in the table, while FI, HR and CY record fewer than 10. Outside the EU, BY is the country that registers the highest number of items (28) and MD and UA collect the least information (16 items).
However, in some countries, such as NL, DK, PT or CZ the information in the birth declaration is integrated in the register, from where a number of other information can or could be deduced or calculated. For example the mother's and father's age can be deduced from their date of birth etc., thus this information could be considered as available. In PT the collection of live births data for statistical purposes includes information from the birth declaration plus a set of other variables collected simultaneously in an electric questionnaire. In DK, medical information on births is taken from the central population register and supplemented with data from the birth register, retrieved by the NSI, while information on the mother's and father's background is compiled from administrative registers. Thus it can be said that the declaration of birth is a general indication of the information available for statistical offices, but in many cases it is not their only source of information.