Evidence map›Paper›PMID 30381312›Full record

ArticleBMJ open2018

Ecological study on the use of hormonal contraception, abortions and births among teenagers in the Nordic countries.

Helena Hognert, Finn Egil Skjeldestad, Kristina Gemzell-Danielsson, Oskari Heikinheimo, Ian Milsom, Øjvind Lidegaard, Ingela Lindh

Abstract read
In one paragraph

Article in BMJ open, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

8 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Contraceptive use among women seeking an early induced abortion in Sweden.Acta obstetricia et gynecologica Scandinavica · 2023
    Article
  8. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Helena HognertDepartment of Obstetrics and Gynecology, Sahlgrenska Academy at Gothenburg University, Sahlgrenska University Hospital, SE-41685 Gothenburg, Sweden.
Finn Egil SkjeldestadResearch Group Epidemiology of Chronic Diseases, Department of Community Medicine, Faculty of Health Sciences, UiT The Arctic University of Norway, Tromso, Norway.
Kristina Gemzell-DanielssonDepartment of Women's and Children's Health, Division of Obstetrics and Gynaecology, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden.
Oskari HeikinheimoDepartment of Obstetrics and Gynaecology, University of Helsinki and Helsinki, University Hospital, Helsinki, Finland.
Ian MilsomDepartment of Obstetrics and Gynecology, Sahlgrenska Academy at Gothenburg University, Sahlgrenska University Hospital, SE-41685 Gothenburg, Sweden.
Øjvind LidegaardDepartment of Obstetrics & Gynaecology, Rigshospitalet, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark.
Ingela LindhDepartment of Obstetrics and Gynecology, Sahlgrenska Academy at Gothenburg University, Sahlgrenska University Hospital, SE-41685 Gothenburg, Sweden.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesCompare hormonal contraceptive use, birth and abortion rates among teenagers in the Nordic countries. A secondary aim was to explore plausible explanations for possible differences between countries.

designEcological study using national registry data concerning births and abortions among all women aged 15-19 years residing in Denmark, Finland, Iceland, Norway and Sweden 2008-2015. Age-specific data on prescriptions for hormonal contraceptives for the period 2008-2015 were obtained from national databases in Denmark, Norway and Sweden.

settingDenmark, Finland, Iceland, Norway and Sweden.

participantsWomen 15-19 years old in all Nordic countries (749 709) and 13-19 years old in Denmark, Norway and Sweden (815 044).

resultsBoth annual birth rates and abortion rates fell in all the Nordic countries during the study period. The highest user rate of hormonal contraceptives among 15-19-year-olds was observed in Denmark (from 51% to 47%) followed by Sweden (from 39% to 42%) and Norway (from 37% to 41%). Combined oral contraceptives were the most commonly used methods in all countries. The use of long-acting reversible contraceptives (LARC), implants and the levonorgestrel-releasing intrauterine systems, were increasing, especially in Sweden and Norway. In the subgroup of 18-19-year-old teenagers, the user rates of hormonal contraceptives varied between 63% and 61% in Denmark, 56% and 61% in Norway and 54% and 56% in Sweden. In the same subgroup, the steepest increase of LARC was seen, from 2% to 6% in Denmark, 2% to 9% in Norway and 7% to 17% in Sweden.

conclusionsBirth and abortion rates continuously declined in the Nordic countries among teenagers. There was a high user rate of hormonal contraceptives, with an increase in the use of LARC especially among the oldest teenagers.

Indexed as

Abortion, InducedAdolescentBirth RateCondomsContraception BehaviorContraceptives, Oral, HormonalContraceptives, Oral, SyntheticDatabases, FactualFemaleHumansIntrauterine DevicesLevonorgestrelPregnancyScandinavian and Nordic CountriesYoung AdultContraceptives, Oral, HormonalContraceptives, Oral, SyntheticLevonorgestrelabortionsbirthscontraceptive usehormonal contraceptionteenagers

Identifiers

PMID30381312
PMCPMC6224744

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.