ArticleHealthcare (Basel, Switzerland)2021
A Validation Study on the Frequency and Natural History of Miscarriages Using the Spanish Primary Care Database BIFAP.
Article in Healthcare (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.
What it found
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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.
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.
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Who cites it
5 citing papers in PubMed, 1 synthesis or guideline pooled it, 7 citations in OpenAlex.
- Association between antidepressant use during pregnancy and miscarriage: a systematic review and meta-analysis.BMJ open · 2024Pooled it
- Unlocking the Adoption of a Smartphone Application for High-Risk Pregnant Women in the Lao People's Democratic Republic: A Mixed-Methods Study.Journal of advanced nursing · 2026Article
- Evaluation of Data Quality and Utility of the Japan Drug Information Institute in Pregnancy (JDIIP) Consultation Case Database for Pregnancy Pharmacovigilance.Drug safety · 2025Article
- Lack of association between COVID-19 vaccines and miscarriage onset using a case-crossover design.Scientific reports · 2024Article
- The role of prenatal exposure to antidepressants, anxiolytic, and hypnotics and its underlying illness on the risk of miscarriage using BIFAP database.Pharmacoepidemiology and drug safety · 2022Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
(1) Background: There is a major gap of knowledge towards the natural history of miscarriages in electronic medical records. We aimed to calculate the frequency of miscarriages using data from BIFAP database. (2) Methods: We identified all pregnancy losses and carried out a multistep validation exercise. Potential cases with positive predictive values (PPV) of miscarriage confirmation <85% or those confirming other pregnancy loss were excluded. Kaplan-Meier figures and incidence rates (IRs) of miscarriage with 95% confidence intervals (CIs) expressed by 1000 person-weeks were calculated. Stratifying analysis by age, specific high-risk groups, and drug exposure within the pre-pregnancy period were performed restricted to women with recording last menstrual period (LMP). (3) Results: Women with confirmed miscarriage (
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Registered trials
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