Marital and extra-marital live births by districts, municipalities and place of residence



MARITAL AND EXTRA-MARITAL LIVE BIRTHS BY DISTRICTS, MUNICIPALITIES AND PLACE OF RESIDENCE IN 2018
(Number)
Districts
Municipalities
Total Urban residence Rural residence
Total Marital Extra-marital Total Marital Extra-marital Total Marital Extra-marital
Total 62 197 25 830 36 367 46 877 20 454 26 423 15 320 5 376 9 944
Blagoevgrad 2 676 1 471 1 205 1 723 946 777 953 525 428
Bansko 103 59 44 92 .. .. 11 .. ..
Belitsa 81 33 48 24 8 16 57 25 32
Blagoevgrad 745 436 309 716 417 299 29 19 10
Gotse Delchev 273 173 100 166 101 65 107 72 35
Garmen 157 67 90 - - - 157 67 90
Kresna 24 13 11 18 .. .. 6 .. ..
Petrich 454 223 231 285 122 163 169 101 68
Razlog 154 82 72 91 49 42 63 33 30
Sandanski 284 148 136 208 114 94 76 34 42
Satovcha 87 73 14 - - - 87 73 14
Simitli 101 60 41 53 27 26 48 33 15
Strumyani 46 12 34 - - - 46 12 34
Hadzhidimovo 66 50 16 18 12 6 48 38 10
Yakoruda 101 42 59 52 29 23 49 13 36
Burgas 3 724 1 734 1 990 2 773 1 263 1 510 951 471 480
Aytos 268 164 104 188 112 76 80 52 28
Burgas 1 819 843 976 1 782 830 952 37 13 24
Kameno 88 32 56 39 20 19 49 12 37
Karnobat 250 95 155 187 75 112 63 20 43
Malko Tarnovo 17 8 9 13 8 5 4 - 4
Nesebar 271 107 164 172 77 95 99 30 69
Pomorie 228 122 106 132 62 70 96 60 36
Primorsko 46 15 31 25 10 15 21 5 16
Ruen 296 223 73 - - - 296 223 73
Sozopol 121 47 74 53 27 26 68 20 48
Sredets 138 20 118 91 17 74 47 3 44
Sungurlare 116 37 79 36 7 29 80 30 50
Tsarevo 66 21 45 55 18 37 11 3 8
Varna 4 275 1 802 2 473 3 616 1 625 1 991 659 177 482
Avren 66 16 50 - - - 66 16 50
Aksakovo 204 75 129 120 52 68 84 23 61
Beloslav 84 37 47 55 20 35 29 17 12
Byala 31 9 22 15 6 9 16 3 13
Varna 3 170 1 474 1 696 3 082 1 446 1 636 88 28 60
Vetrino 26 7 19 - - - 26 7 19
Valchi Dol 75 20 55 26 12 14 49 8 41
Devnya 73 17 56 70 .. .. 3 .. ..
Dolni Chiflik 191 50 141 60 17 43 131 33 98
Dalgopol 130 45 85 56 11 45 74 34 40
Provadia 162 37 125 91 31 60 71 6 65
Suvorovo 63 15 48 41 .. .. 22 .. ..
Veliko Tarnovo 1 901 633 1 268 1 396 532 864 505 101 404
Veliko Tarnovo 720 289 431 652 275 377 68 14 54
Gorna Oryahovitsa 337 113 224 246 88 158 91 25 66
Elena 49 14 35 16 8 8 33 6 27
Zlataritsa 29 7 22 23 .. .. 6 .. ..
Lyaskovets 75 18 57 53 14 39 22 4 18
Pavlikeni 160 29 131 89 18 71 71 11 60
Polski Trambesh 91 20 71 27 11 16 64 9 55
Svishtov 282 102 180 226 95 131 56 7 49
Strazhitsa 137 35 102 47 12 35 90 23 67
Suhindol 21 6 15 17 .. .. 4 .. ..
Vidin 586 123 463 403 94 309 183 29 154
Belogradchik 50 8 42 42 .. .. 8 .. ..
Boynitsa .. - .. - - - .. - ..
Bregovo 29 - 29 22 - 22 7 - 7
Vidin 348 93 255 303 81 222 45 12 33
Gramada 14 .. .. 12 .. .. .. .. ..
Dimovo 61 12 49 9 3 6 52 9 43
Kula 22 3 19 15 3 12 7 - 7
Makresh .. - .. - - - .. - ..
Novo Selo 10 .. .. - - - 10 .. ..
Ruzhintsi 30 4 26 - - - 30 4 26
Chuprene 18 .. .. - - - 18 .. ..
Vratsa 1 375 366 1 009 822 276 546 553 90 463
Borovan 52 6 46 - - - 52 6 46
Byala Slatina 194 32 162 90 22 68 104 10 94
Vratsa 571 185 386 465 166 299 106 19 87
Kozloduy 187 56 131 110 42 68 77 14 63
Krivodol 64 5 59 23 .. .. 41 .. ..
Mezdra 132 50 82 67 31 36 65 19 46
Mizia 42 12 30 16 6 10 26 6 20
Oryahovo 57 10 47 27 3 24 30 7 23
Roman 45 6 39 24 .. .. 21 .. ..
Hayredin 31 4 27 - - - 31 4 27
Gabrovo 741 237 504 608 201 407 133 36 97
Gabrovo 369 119 250 344 111 233 25 8 17
Dryanovo 45 10 35 .. .. .. .. .. ..
Sevlievo 262 94 168 164 67 97 98 27 71
Tryavna 65 14 51 .. .. .. .. .. ..
Dobrich 1 293 513 780 887 369 518 406 144 262
Balchik 129 50 79 76 31 45 53 19 34
General Toshevo 86 26 60 39 16 23 47 10 37
Dobrich 156 50 106 - - - 156 50 106
Dobrich town 634 268 366 634 268 366 - - -
Kavarna 100 32 68 78 28 50 22 4 18
Krushari 42 12 30 - - - 42 12 30
Tervel 128 72 56 44 .. .. 84 .. ..
Shabla 18 3 15 16 .. .. .. .. ..
Kardzhali 1 380 887 493 623 388 235 757 499 258
Ardino 66 48 18 20 17 3 46 31 15
Dzhebel 68 51 17 27 23 4 41 28 13
Kirkovo 187 124 63 - - - 187 124 63
Krumovgrad 178 83 95 50 31 19 128 52 76
Kardzhali 683 425 258 462 269 193 221 156 65
Momchilgrad 133 99 34 64 48 16 69 51 18
Chernoochene 65 57 8 - - - 65 57 8
Kyustendil 831 312 519 661 257 404 170 55 115
Bobovdol 33 8 25 28 8 20 5 - 5
Boboshevo 19 .. .. 10 .. .. 9 .. ..
Dupnitsa 314 134 180 251 113 138 63 21 42
Kocherinovo 23 12 11 18 .. .. 5 .. ..
Kyustendil 365 127 238 305 103 202 60 24 36
Nevestino 11 - 11 - - - 11 - 11
Rila 12 6 6 12 6 6 - - -
Sapareva Banya 51 23 28 37 16 21 14 7 7
Treklyano .. - .. - - - .. - ..
Lovech 1 028 250 778 662 180 482 366 70 296
Apriltsi 13 3 10 12 .. .. .. .. ..
Letnitsa 41 10 31 35 .. .. 6 .. ..
Lovech 309 84 225 247 78 169 62 6 56
Lukovit 189 24 165 104 14 90 85 10 75
Teteven 152 50 102 65 15 50 87 35 52
Troyan 185 62 123 134 50 84 51 12 39
Ugarchin 63 7 56 44 7 37 19 - 19
Yablanitsa 76 10 66 21 4 17 55 6 49
Montana 1 004 319 685 671 267 404 333 52 281
Berkovitsa 140 63 77 117 52 65 23 11 12
Boychinovtsi 73 13 60 6 3 3 67 10 57
Brusartsi 37 3 34 .. .. .. 35 .. ..
Valchedram 80 14 66 25 6 19 55 8 47
Varshets 75 19 56 68 .. .. 7 .. ..
Georgi Damyanovo .. - .. - - - .. - ..
Lom 156 56 100 128 53 75 28 3 25
Medkovets 25 3 22 - - - 25 3 22
Montana 369 141 228 321 135 186 48 6 42
Chiprovtsi 11 .. .. 4 .. .. 7 .. ..
Yakimovo 31 5 26 - - - 31 5 26
Pazardzhik 2 414 844 1 570 1 528 568 960 886 276 610
Batak 27 17 10 10 .. .. 17 .. ..
Belovo 56 14 42 25 8 17 31 6 25
Bratsigovo 68 19 49 27 7 20 41 12 29
Velingrad 366 95 271 228 46 182 138 49 89
Lesichovo 51 10 41 - - - 51 10 41
Pazardzhik 966 375 591 617 269 348 349 106 243
Panagyurishte 201 85 116 136 68 68 65 17 48
Peshtera 156 55 101 146 49 97 10 6 4
Rakitovo 185 45 140 160 38 122 25 7 18
Septemvri 262 91 171 118 48 70 144 43 101
Strelcha 39 15 24 37 .. .. .. .. ..
Sarnitsa 37 23 14 24 16 8 13 7 6
Pernik 933 348 585 812 308 504 121 40 81
Breznik 46 17 29 37 13 24 9 4 5
Zemen 15 3 12 9 .. .. 6 .. ..
Kovachevtsi 9 4 5 - - - 9 4 5
Pernik 692 277 415 620 249 371 72 28 44
Radomir 135 41 94 120 .. .. 15 .. ..
Tran 36 6 30 26 .. .. 10 .. ..
Pleven 1 945 614 1 331 1 278 486 792 667 128 539
Belene 34 12 22 29 12 17 5 - 5
Gulyantsi 76 15 61 30 8 22 46 7 39
Dolna Mitropolia 154 29 125 77 16 61 77 13 64
Dolni Dabnik 117 30 87 41 15 26 76 15 61
Iskar 57 13 44 31 9 22 26 4 22
Knezha 121 27 94 98 .. .. 23 .. ..
Levski 125 39 86 60 23 37 65 16 49
Nikopol 56 25 31 28 19 9 28 6 22
Pleven 957 379 578 749 331 418 208 48 160
Pordim 34 8 26 17 .. .. 17 .. ..
Cherven Bryag 214 37 177 118 25 93 96 12 84
Plovdiv 6 337 2 854 3 483 4 872 2 329 2 543 1 465 525 940
Asenovgrad 518 248 270 439 217 222 79 31 48
Brezovo 54 9 45 14 .. .. 40 .. ..
Kaloyanovo 105 52 53 - - - 105 52 53
Karlovo 423 99 324 209 65 144 214 34 180
Krichim 69 23 46 69 23 46 - - -
Kuklen 67 50 17 66 .. .. .. .. ..
Laki 14 8 6 12 .. .. .. .. ..
Maritsa 284 116 168 - - - 284 116 168
Perushtitsa 40 13 27 40 13 27 - - -
Plovdiv 3 442 1 679 1 763 3 442 1 679 1 763 - - -
Parvomay 197 81 116 95 40 55 102 41 61
Rakovski 325 169 156 200 119 81 125 50 75
Rodopi 223 113 110 - - - 223 113 110
Sadovo 153 45 108 28 9 19 125 36 89
Sopot 76 30 46 68 .. .. 8 .. ..
Stamboliyski 209 64 145 99 36 63 110 28 82
Saedinenie 85 33 52 60 26 34 25 7 18
Hisarya 53 22 31 31 15 16 22 7 15
Razgrad 942 519 423 407 228 179 535 291 244
Zavet 72 42 30 27 .. .. 45 .. ..
Isperih 184 83 101 72 36 36 112 47 65
Kubrat 108 72 36 42 31 11 66 41 25
Loznitsa 70 37 33 15 6 9 55 31 24
Razgrad 396 207 189 232 128 104 164 79 85
Samuil 76 50 26 - - - 76 50 26
Tsar Kaloyan 36 28 8 19 .. .. 17 .. ..
Ruse 1 687 739 948 1 365 615 750 322 124 198
Borovo 28 15 13 13 7 6 15 8 7
Byala 86 23 63 39 12 27 47 11 36
Vetovo 100 50 50 82 40 42 18 10 8
Dve Mogili 55 23 32 29 12 17 26 11 15
Ivanovo 38 12 26 - - - 38 12 26
Ruse 1 263 567 696 1 162 529 633 101 38 63
Slivo Pole 91 41 50 40 15 25 51 26 25
Tsenovo 26 8 18 - - - 26 8 18
Silistra 819 411 408 311 158 153 508 253 255
Alfatar 15 4 11 4 .. .. 11 .. ..
Glavinitsa 73 51 22 .. .. .. 71 .. ..
Dulovo 248 148 100 63 38 25 185 110 75
Kaynardzha 61 17 44 - - - 61 17 44
Silistra 287 124 163 187 85 102 100 39 61
Sitovo 40 21 19 - - - 40 21 19
Tutrakan 95 46 49 55 34 21 40 12 28
Sliven 2 258 629 1 629 1 397 487 910 861 142 719
Kotel 216 43 173 34 8 26 182 35 147
Nova Zagora 401 92 309 231 73 158 170 19 151
Sliven 1 403 464 939 951 385 566 452 79 373
Tvarditsa 238 30 208 181 21 160 57 9 48
Smolyan 671 244 427 410 140 270 261 104 157
Banite 11 4 7 - - - 11 4 7
Borino 19 12 7 - - - 19 12 7
Devin 56 15 41 34 7 27 22 8 14
Dospat 52 39 13 12 .. .. 40 .. ..
Zlatograd 72 40 32 45 28 17 27 12 15
Madan 76 14 62 37 7 30 39 7 32
Nedelino 32 12 20 25 9 16 7 3 4
Rudozem 68 24 44 19 8 11 49 16 33
Smolyan 240 77 163 197 65 132 43 12 31
Chepelare 45 7 38 41 .. .. 4 .. ..
Sofia (stolitsa) 13 060 6 213 6 847 12 598 6 008 6 590 462 205 257
Stolichna 13 060 6 213 6 847 12 598 6 008 6 590 462 205 257
Sofia 1 988 662 1 326 1 350 462 888 638 200 438
Anton 8 3 5 - - - 8 3 5
Bozhurishte 75 35 40 64 31 33 11 4 7
Botevgrad 300 112 188 180 74 106 120 38 82
Godech 31 12 19 28 .. .. 3 .. ..
Gorna Malina 43 6 37 - - - 43 6 37
Dolna Banya 51 12 39 51 12 39 - - -
Dragoman 32 6 26 21 .. .. 11 .. ..
Elin Pelin 181 83 98 67 32 35 114 51 63
Etropole 94 26 68 78 .. .. 16 .. ..
Zlatitsa 38 8 30 34 .. .. 4 .. ..
Ihtiman 227 64 163 199 59 140 28 5 23
Koprivshtitsa 16 6 10 16 6 10 - - -
Kostenets 62 28 34 40 20 20 22 8 14
Kostinbrod 126 51 75 90 38 52 36 13 23
Mirkovo 14 4 10 - - - 14 4 10
Pirdop 60 19 41 54 16 38 6 3 3
Pravets 69 16 53 25 10 15 44 6 38
Samokov 353 94 259 294 77 217 59 17 42
Svoge 121 45 76 57 21 36 64 24 40
Slivnitsa 61 24 37 52 21 31 9 3 6
Chavdar 10 3 7 - - - 10 3 7
Chelopech 16 5 11 - - - 16 5 11
Stara Zagora 2 938 961 1 977 2 120 799 1 321 818 162 656
Bratya Daskalovi 85 11 74 - - - 85 11 74
Gurkovo 66 9 57 32 5 27 34 4 30
Galabovo 93 16 77 55 11 44 38 5 33
Kazanlak 577 204 373 412 155 257 165 49 116
Maglizh 104 17 87 34 7 27 70 10 60
Nikolaevo 101 8 93 64 5 59 37 3 34
Opan 13 3 10 - - - 13 3 10
Pavel Banya 148 30 118 21 5 16 127 25 102
Radnevo 142 47 95 103 41 62 39 6 33
Stara Zagora 1 394 574 820 1 244 535 709 150 39 111
Chirpan 215 42 173 155 35 120 60 7 53
Targovishte 947 464 483 495 262 233 452 202 250
Antonovo 43 20 23 7 .. .. 36 .. ..
Omurtag 183 111 72 58 29 29 125 82 43
Opaka 61 51 10 26 .. .. 35 .. ..
Popovo 186 58 128 98 41 57 88 17 71
Targovishte 474 224 250 306 167 139 168 57 111
Haskovo 1 819 609 1 210 1 327 465 862 492 144 348
Dimitrovgrad 331 117 214 257 87 170 74 30 44
Ivaylovgrad 35 7 28 14 .. .. 21 .. ..
Lyubimets 103 21 82 81 17 64 22 4 18
Madzharovo 19 3 16 5 .. .. 14 .. ..
Mineralni Bani 57 27 30 - - - 57 27 30
Svilengrad 190 64 126 157 59 98 33 5 28
Simeonovgrad 98 9 89 85 .. .. 13 .. ..
Stambolovo 49 21 28 - - - 49 21 28
Topolovgrad 63 15 48 22 7 15 41 8 33
Harmanli 199 68 131 156 54 102 43 14 29
Haskovo 675 257 418 550 229 321 125 28 97
Shumen 1 451 671 780 886 393 493 565 278 287
Veliki Preslav 90 44 46 46 23 23 44 21 23
Venets 66 41 25 - - - 66 41 25
Varbitsa 86 46 40 39 19 20 47 27 20
Kaolinovo 124 78 46 17 14 3 107 64 43
Kaspichan 57 18 39 17 .. .. 40 .. ..
Nikola Kozlevo 80 33 47 - - - 80 33 47
Novi Pazar 148 52 96 104 35 69 44 17 27
Smyadovo 43 12 31 26 .. .. 17 .. ..
Hitrino 31 17 14 - - - 31 17 14
Shumen 726 330 396 637 296 341 89 34 55
Yambol 1 174 401 773 876 348 528 298 53 245
Bolyarovo 31 3 28 12 .. .. 19 .. ..
Elhovo 144 54 90 92 43 49 52 11 41
Straldzha 123 20 103 80 .. .. 43 .. ..
Tundzha 184 36 148 - - - 184 36 148
Yambol 692 288 404 692 288 404 - - -

.. Data is confidential according to article 25 of the Law on Statistics
12.04.2019


Euro-SDMX Metadata Structure (ESMS)

FERTILITY - Births, Live births, Birth rates, Mean age of the mother at birth and Total fertility rate
Contact
Contact organisation

National Statistical Institute

Contact organisation unit

Population and Housing Fund Statistics Department

Contact name

Nadejda Karlezhova

Contact person function

Chief expert

Contact mail address

2, P. Volov Str.; 1038 Sofia, Bulgaria

Contact email address

[email protected]

Contact phone number

+359 2 9857 543

Contact fax number
Metadata update
Metadata last certified14 June 2019
Metadata last posted14 June 2019
Metadata last update14 June 2019
Statistical presentation
Data description

The births and the children born are surveyed. Registration is done at the moment of occurrence and the number is calculated as of 31.12 of the reference year. Live births and stillbirths are covered.

Source of data on births and children born is the Unified System for Civil registration and Administrative Service of Population. Births are registered through a common USCRASP-CDS document "Birth notification".

Regional breakdown of the fertility data is done according to the country administrative-territorial division as of 31.12 of the reference year (settlements, municipalities, districts and statistical regions) based on the current address.

Live births are used for calculation of indicators, characterizing the fertility.

Classification system

· Classification of Territorial Units for Statistical Purposes in Bulgaria (NUTS);

· Unified Classification of the Administrative-Territorial and Territorial Units in Bulgaria (UCATTU).

Sector coverage

All children born with a usual residence (current address) in the Republic of Bulgaria are included.

Statistical concepts and definitions

"Birth” is a complete expulsion or extraction from the mother of a foetus, irrespective alive or dead, that meet the following criteria: not

a) body weight at birth of 800 grams and over and / or 26 weeks of gestation;

b) body weight at birth of less than 800 grams and / or less than 26 weeks of gestation - provided that the foetus was born alive and has lived at least 3 days.

"Alive" is a foetus who shows signs of blood circulation. In absence of such signs, the foetus is considered “dead” (foetus mortuus).

“Abortion” is a loss or interruption of a pregnancy before the foetus to meet the above mentioned criteria. 

Crude birth rate is the ratio of the number of live births during the year to the average annual population in that year. The value is expressed per 1000 inhabitants.

The total fertility rate is the sum of the age-specific fertility rates for the reference year. It represents the mean number of children that would be born alive to a woman during her lifetime if she were to pass through her childbearing years conforming to the fertility rates by age of a given year.

The net reproduction rate is the ratio between the number of women who have gave a birth during the year and the daughters born during the same year taking into account the mortality. It represents the average number of daughters that will survive until childbearing ages, born to a woman if they will experience the age-specific fertility and mortality rates of the year in question, i.e. how many girls replace a mother under the reproduction conditions during the respective year.

The age of parents at birth is calculated in completed years based on the date of birth of parents and the date of event birth.

The mean age of the mother at childbearing is calculated as a weighted average within the interval between the birth of mothers generations and children birth.

Statistical unit

Children born - live born and stillborn.

Statistical population

Total number of births.

Reference area

Regional breakdown of the fertility data is done according to the country administrative-territorial division as of 31.12 of the reference year (settlements, municipalities, districts and statistical regions).

Time coverage

1888  - 2018 total number and by sex;

2010 - 2018 on the NSI website.

Base period

Not applicable.

Unit of measure

Number; per 1 000 population.

Reference period

Calendar year

Institutional mandate
Legal acts and other agreements

· Law on Statistics;

· Law on Civil Registration;

· Ordinance of the Ministry of Health.

· Regulation (EU) 1260/2013 of the European Parliament and of the Council on the European demographic statistics;

· Commission implementing regulation (EU) № 205/2014 laying down uniformed conditions for the implementation of Regulation (EU) No 1260/2013 of the European Parliament and the Council on European demographic statistics, as regards breakdowns of data, deadlines and data revisions;

Data sharing

Data are transmitted to Eurostat, UNICEF, UN ECE, World bank and other institutions on the basis of Regulation (EU) 1260/2013 of the European Parliament and of the Council on the European demographic statistics.

Confidentiality
Confidentiality - policy

· Law on Statistics;

· Regulation (EC) No 223/2009 on European statistics (recital 24 and Article 20(4)) of 11 March 2009 (OJ L 87, p. 164), stipulates the need to establish common principles and guidelines ensuring the confidentiality of data used for the production of European statistics and the access to those confidential data with due account for technical developments and the requirements of users in a democratic society.

Confidentiality - data treatment

Individual data are not published in accordance with article 25 of the Law on Statistics. The publishing of individual data can be performed only in accordance with article 26 of the same law.

Release policy
Release calendar

Information is published annually according to the Release Calendar presenting the results of the statistical surveys carried out by the National Statistical Institute.

Release calendar access

The calendar is available on the NSI website: http://www.nsi.bg/en/node/480

User access

Data is published on the NSI website, section Population - Demography, migration and projections in accordance with the Law on Statistics and the European Statistics Code of Practice respecting the professional independence and aimed at objectivity, transparency and equal treatment of all consumers.

Frequency of dissemination

Annually

Accessibility and clarity
News release

News release "Population and demographic processes".

Publications

· Population and demographic processes;

· Statistical Reference book;

· Statistical Yearbook;

· Booklet "Bulgaria".

On-line database

Data on Fertility are available to all users of the NSI website under the heading Population - Demography, Migration and Projections - Fertility: http://www.nsi.bg/en/node/6610

Information System Infostat: https://infostat.nsi.bg/infostat/pages/module.jsf?x_2=52

Micro-data access

Anonymised individual data can be provide for scientific and research purposes, and for individual request according to the Rules for the provision of anonymised individual data for scientific and research purposes.

Other

Information service on request, according to the Rules for the dissemination of statistical products and services in NSI.

Documentation on methodology

· Methodology on fertility: http://www.nsi.bg/sites/default/files/files/metadata/Pop_1_Metodology_births_en.pdf;

· Manual for functioning of the Unified System for Civil registration and Administrative Service of Population.

Quality documentation

Not available.

Quality management
Quality assurance

Not applicable.

Quality assessment

Not applicable.

Relevance
User needs

Data on fertility are presented annually to the Eurostat, UN, UNICEF, ECE, WHO and others ? questionnaires filled in annually.

At national and regional level the main data users are ministries, agencies, national organisations and local authorities.

Data is presented to scientific institutes, universities, NGOs and others based on requests.

User satisfaction

No user' satisfaction surveys are carried out.

Completeness

Data on fertility is available by sex, weight, height, consecutive number and residence of the child (different territorial levels), place and assistance at birth, multi-foetal births, age (different groupings) of the parents, year of birth of the parents, consecutive number of the mother marriage, pregnancy, citizenship and country of birth of the mother, citizenship of the father.

Accuracy and reliability
Overall accuracy

Not applicable.

Sampling error

Not applicable.

Non-sampling error

Not applicable.

Timeliness and punctuality
Timeliness

Data is published up to the end of April of the year following the reference year.

Punctuality

Data is released according to the terms provided in the Release Calendar presenting the results of the statistical surveys carried out by the National Statistical Institute..

Coherence and comparability

Comparability - geographical

Data is collected and processed for the different territorial units using one and the same methodology and definitions.

Comparability - over time

Changes of the methodology and definitions for different time periods are published in the survey methodology and metadata.

Coherence - cross domain

Not applicable.

Coherence - internal

Not applicable.

Cost and burden

Not applicable.

Data revision
Data revision - policy

Not applicable.

Data revision - practice

Not applicable.

Statistical processing
Source data

Source of data on births and children born is the Unified System for Civil registration and Administrative Service of Population. Births are registered through a common USCRASP-CDS ?Birth notification?.

Frequency of data collection

Monthly

Data collection

Exhaustively for all births registered during the year.

Computer files are received from the Unified System for Civil registration and Administrative Service of Population (administrative source).

Data validation

Data on demographic events is checked and controlled before to be loaded in the IS "Demography".

For successful processing, the initial notification should meet the system rules on validation and control.

The processed results are validated in respect the consistency of a single table and between the tables.

Data compilation

Data is processed by the IS "Demography" according to the rules for validation and control of the demographic events.

Adjustment

Not applicable.

Comment
Metadata Structure Definition in SDMX 2.1: ESMS_MSD+BNSI+2.0+SDMX.2.1.xml
Metadata Structure Definition in SDMX 2.0: ESMS_MSD+BNSI+2.0+SDMX.2.0.xml


ESS Standard for Quality Reports Structure (ESQRS)

FERTILITY - Births, Live births, Birth rates, Mean age of the mother at birth and Total fertility rate
Contact
Contact organisation

National Statistical Institute

Contact organisation unit

Population and Housing Fund Statistics Department

Contact name

Nadejda Karlezhova

Contact person function

Chief expert

Contact mail address

2, P. Volov Str.; 1038 Sofia, Bulgaria

Contact email address

[email protected]

Contact phone number

+359 2 9857 543

Contact fax number
Statistical presentation
Data description

The births and the children born are surveyed. Registration is done at the moment of occurrence and the number is calculated as of 31.12 of the reference year. Live births and stillbirths are covered.

Source of data on births and children born is the Unified System for Civil registration and Administrative Service of Population. Births are registered through a common USCRASP-CDS document "Birth notification".

Regional breakdown of the fertility data is done according to the country administrative-territorial division as of 31.12 of the reference year (settlements, municipalities, districts and statistical regions) based on the current address.

Live births are used for calculation of indicators, characterizing the fertility.

Classification system

· Classification of Territorial Units for Statistical Purposes in Bulgaria (NUTS);

· Unified Classification of the Administrative-Territorial and Territorial Units in Bulgaria (UCATTU).

Sector coverage

All children born with a usual residence (current address) in the Republic of Bulgaria are included.

Statistical concepts and definitions

"Birth” is a complete expulsion or extraction from the mother of a foetus, irrespective alive or dead, that meet the following criteria: not

a) body weight at birth of 800 grams and over and / or 26 weeks of gestation;

b) body weight at birth of less than 800 grams and / or less than 26 weeks of gestation - provided that the foetus was born alive and has lived at least 3 days.

"Alive" is a foetus who shows signs of blood circulation. In absence of such signs, the foetus is considered “dead” (foetus mortuus).

“Abortion” is a loss or interruption of a pregnancy before the foetus to meet the above mentioned criteria. 

Crude birth rate is the ratio of the number of live births during the year to the average annual population in that year. The value is expressed per 1000 inhabitants.

The total fertility rate is the sum of the age-specific fertility rates for the reference year. It represents the mean number of children that would be born alive to a woman during her lifetime if she were to pass through her childbearing years conforming to the fertility rates by age of a given year.

The net reproduction rate is the ratio between the number of women who have gave a birth during the year and the daughters born during the same year taking into account the mortality. It represents the average number of daughters that will survive until childbearing ages, born to a woman if they will experience the age-specific fertility and mortality rates of the year in question, i.e. how many girls replace a mother under the reproduction conditions during the respective year.

The age of parents at birth is calculated in completed years based on the date of birth of parents and the date of event birth.

The mean age of the mother at childbearing is calculated as a weighted average within the interval between the birth of mothers generations and children birth.

Statistical unit

Children born - live born and stillborn.

Statistical population

Total number of births.

Reference area

Regional breakdown of the fertility data is done according to the country administrative-territorial division as of 31.12 of the reference year (settlements, municipalities, districts and statistical regions).

Time coverage

1888  - 2018 total number and by sex;

2010 - 2018 on the NSI website.

Base period

Not applicable.

Statistical processing
Source data

Source of data on births and children born is the Unified System for Civil registration and Administrative Service of Population. Births are registered through a common USCRASP-CDS ?Birth notification?.

Frequency of data collection

Monthly

Data collection

Exhaustively for all births registered during the year.

Computer files are received from the Unified System for Civil registration and Administrative Service of Population (administrative source).

Data validation

Data on demographic events is checked and controlled before to be loaded in the IS "Demography".

For successful processing, the initial notification should meet the system rules on validation and control.

The processed results are validated in respect the consistency of a single table and between the tables.

Data compilation

Data is processed by the IS "Demography" according to the rules for validation and control of the demographic events.

Adjustment

Not applicable.

Quality management
Quality assurance

Not applicable.

Quality assessment

Not applicable.

Relevance
User needs

Data on fertility are presented annually to the Eurostat, UN, UNICEF, ECE, WHO and others ? questionnaires filled in annually.

At national and regional level the main data users are ministries, agencies, national organisations and local authorities.

Data is presented to scientific institutes, universities, NGOs and others based on requests.

User satisfaction

No user' satisfaction surveys are carried out.

Completeness

Data on fertility is available by sex, weight, height, consecutive number and residence of the child (different territorial levels), place and assistance at birth, multi-foetal births, age (different groupings) of the parents, year of birth of the parents, consecutive number of the mother marriage, pregnancy, citizenship and country of birth of the mother, citizenship of the father.

Data completeness - rate

100%

Accuracy and reliability
Overall accuracy

Not applicable.

Sampling error

Not applicable.

Sampling errors - indicators

Not applicable.

 

Non-sampling error

Not applicable.

Coverage error

Not applicable.

 

Over-coverage - rate

Not applicable

Common units - proportion

Not applicable

Measurement error

Not applicable

Non response error

Not applicable

Unit non-response - rate

Not applicable

Item non-response - rate

Not applicable

Processing error

Not applicable

Imputation - rate

Not applicable

Model assumption error

Not applicable

Seasonal adjustment

Not applicable

Data revision - policy

Not applicable.

Data revision - practice

Not applicable.

Data revision - average size
Timeliness and punctuality
Timeliness

Data is published up to the end of April of the year following the reference year.

Time lag - first results

4 months after the reference year

Time lag - final results

4 months after the reference year

Punctuality

Data is released according to the terms provided in the Release Calendar presenting the results of the statistical surveys carried out by the National Statistical Institute..

Punctuality - delivery and publication

Nor applicable

Coherence and comparability

Comparability - geographical

Data is collected and processed for the different territorial units using one and the same methodology and definitions.

Asymmetry for mirror flows statistics - coefficient

Not applicable

Comparability - over time

Changes of the methodology and definitions for different time periods are published in the survey methodology and metadata.

Length of comparable time series

2000 onwards

Coherence - cross domain

Not applicable.

Coherence - sub annual and annual statistics

Not applicable

Coherence - National Accounts

Not applicable

Coherence - internal

Not applicable.

Accessibility and clarity
News release

News release "Population and demographic processes".

Publications

· Population and demographic processes;

· Statistical Reference book;

· Statistical Yearbook;

· Booklet "Bulgaria".

On-line database

Data on Fertility are available to all users of the NSI website under the heading Population - Demography, Migration and Projections - Fertility: http://www.nsi.bg/en/node/6610

Information System Infostat: https://infostat.nsi.bg/infostat/pages/module.jsf?x_2=52

Data tables - consultations

not applicable

Micro-data access

Anonymised individual data can be provide for scientific and research purposes, and for individual request according to the Rules for the provision of anonymised individual data for scientific and research purposes.

Other

Information service on request, according to the Rules for the dissemination of statistical products and services in NSI.

Metadata - consultations

not applicable

Documentation on methodology

· Methodology on fertility: http://www.nsi.bg/sites/default/files/files/metadata/Pop_1_Metodology_births_en.pdf;

· Manual for functioning of the Unified System for Civil registration and Administrative Service of Population.

Metadata completeness – rate

100%

Quality documentation

Not available.

Cost and burden

Not applicable.

Confidentiality
Confidentiality - policy

· Law on Statistics;

· Regulation (EC) No 223/2009 on European statistics (recital 24 and Article 20(4)) of 11 March 2009 (OJ L 87, p. 164), stipulates the need to establish common principles and guidelines ensuring the confidentiality of data used for the production of European statistics and the access to those confidential data with due account for technical developments and the requirements of users in a democratic society.

Confidentiality – data treatment

Individual data are not published in accordance with article 25 of the Law on Statistics. The publishing of individual data can be performed only in accordance with article 26 of the same law.

Comment
Metadata Structure Definition in SDMX 2.1: ESQRS_MSD+BNSI+2.0+SDMX.2.1.xml
Metadata Structure Definition in SDMX 2.0: ESQRS_MSD+BNSI+2.0+SDMX.2.0.xml
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