Evidence map›Paper›PMID 35457731›Full record

ArticleInternational journal of environmental research and public health2022

Validity of Administrative Data for Identifying Birth-Related Outcomes with the End Date of Pregnancy in a Japanese University Hospital.

Kentaro Tajima, Tomofumi Ishikawa, Fumiko Matsuzaki, Aoi Noda, Kei Morishita, Ryusuke Inoue, Noriyuki Iwama, Hidekazu Nishigori, Junichi Sugawara, Masatoshi Saito and 2 more

Open access · goldAbstract read
In one paragraph

Article in International journal of environmental research and public health, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.8field-weighted citation impact, top 15% of its field
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

7 citing papers in PubMed, 12 citations in OpenAlex.

  1. Medication use during pregnancy in Japan from 2005 to 2019: Trends and safety considerations.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2026
    Article
  2. Article
  3. Article
  4. Article
  5. [Frequency of episiotomy practice in an institution in Quito, Ecuador 2009-2022].Revista colombiana de obstetricia y ginecologia · 2024
    Article
  6. Article
  7. Pharmacotherapy during Pregnancy, Childbirth, and Lactation.International journal of environmental research and public health · 2022
    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

12 authors at 2 institutions in 1 country.

Kentaro TajimaLaboratory of Clinical Pharmacy, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai 980-8574, Japan.ORCID 0000-0003-0438-5588
Tomofumi IshikawaLaboratory of Clinical Pharmacy, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai 980-8574, Japan.ORCID 0000-0002-0901-368X
Fumiko MatsuzakiDivision of Preventive Medicine and Epidemiology, Tohoku Medical Megabank Organization, Tohoku University, Sendai 980-8573, Japan.ORCID 0000-0001-9689-2485
Aoi NodaDivision of Preventive Medicine and Epidemiology, Tohoku Medical Megabank Organization, Tohoku University, Sendai 980-8573, Japan.
Kei MorishitaDepartment of Pharmaceutical Sciences, Tohoku University Hospital, Sendai 980-8574, Japan.
Ryusuke InoueDepartment of Medical Informatics, Graduate School of Medicine, Tohoku University, Sendai 980-8574, Japan.
Noriyuki IwamaDivision of Preventive Medicine and Epidemiology, Tohoku Medical Megabank Organization, Tohoku University, Sendai 980-8573, Japan.
Hidekazu NishigoriFukushima Medical Center for Children and Women, Fukushima Medical University, Fukushima 960-1295, Japan.
Junichi SugawaraDivision of Community Medical Supports, Tohoku Medical Megabank Organization, Tohoku University, Sendai 980-8573, Japan.
Masatoshi SaitoDepartment of Obstetrics and Gynecology, Graduate School of Medicine, Tohoku University, Sendai 980-8574, Japan.
Taku ObaraDivision of Preventive Medicine and Epidemiology, Tohoku Medical Megabank Organization, Tohoku University, Sendai 980-8573, Japan.ORCID 0000-0002-3674-1674
Nariyasu ManoLaboratory of Clinical Pharmacy, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai 980-8574, Japan.
Tohoku University · JPFukushima Medical University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study aimed to develop and validate claims-based algorithms for identifying live birth, fetal death, and cesarean section by utilizing administrative data from a university hospital in Japan. We included women who visited the Department of Obstetrics at a university hospital in 2018. The diagnosis, medical procedures, and medication data were used to identify potential cases of live birth, fetal death, and cesarean section. By reviewing electronic medical records, we evaluated the positive predictive values (PPVs) and the accuracy of the end date of pregnancy for each claims datum. "Selected algorithm 1" based on PPVs and "selected algorithm 2" based on both the PPVs and the accuracy of the end date of pregnancy were developed. A total of 1757 women were included, and the mean age was 32.8 years. The PPVs of "selected algorithm 1" and "selected algorithm 2" were both 98.1% for live birth, 99.0% and 98.9% for fetal death, and 99.7% and 100.0% for cesarean section, respectively. These findings suggest that the developed algorithms are useful for future studies for evaluating live birth, fetal death, and cesarean section with an accurate end date of pregnancy.

Indexed as

Cesarean SectionElectronic Health RecordsAdultAlgorithmsFemaleFetal DeathHospitals, UniversityHumansJapanMalePregnancyadministrative claimsJapanobstetric deliverypositive predictive valuevalidation study

Identifiers

PMID35457731
PMCPMC9025717
OpenAlexW4224115083

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.