ArticleBMC health services research2016
Validating abortion procedure coding in Canadian administrative databases.
Article in BMC health services research, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01174225 (Contraception Satisfaction and Effectiveness), which is not on this map. Cited by 11 papers.
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.
Contraception Satisfaction and Effectiveness: A Randomized Controlled Trial
Who cites it
11 citing papers in PubMed.
- Changes in local access to mifepristone dispensed by community pharmacies for medication abortion in Ontario: a population-based repeated cross-sectional study.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2025Article
- Linkage of Clinical Trial Data to Routinely Collected Data Sources: A Scoping Review.JAMA network open · 2025Article
- Trends in Abortion Rates in Ontario, Canada.JAMA network open · 2025Article
- Procedural abortion, provider-initiated preterm delivery and survival in pregnant people with cancer: A population-based cohort study.BJOG : an international journal of obstetrics and gynaecology · 2025Article
- Maternal Emergency Department Use Before Pregnancy and Infant Emergency Department Use After Birth.JAMA network open · 2023Article
- The quality and the accuracy of codes for terminations of pregnancy for fetal anomalies recorded in hospital databases in three countries in northern Europe.Birth defects research · 2023Article
- Prepregnancy Emergency Department Use and Risks of Severe Maternal and Neonatal Morbidity in Canada.JAMA network open · 2022Article
- Incidence of Pregnancy-Associated Cancer in Two Canadian Provinces: A Population-Based Study.International journal of environmental research and public health · 2021Article
- Physician procedure volume and related adverse events after surgically induced abortion: a population-based cohort study.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2019Article
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Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
Abstract
backgroundThe British Columbia (BC) Ministry of Health collects abortion procedure data in the Medical Services Plan (MSP) physician billings database and in the hospital information Discharge Abstracts Database (DAD). Our study seeks to validate abortion procedure coding in these databases.
methodsTwo randomized controlled trials enrolled a cohort of 1031 women undergoing abortion. The researcher collected database includes both enrollment and follow up chart review data. The study cohort was linked to MSP and DAD data to identify all abortions events captured in the administrative databases. We compared clinical chart data on abortion procedures with health administrative data. We considered a match to occur if an abortion related code was found in administrative data within 30 days of the date of the same event documented in a clinical chart.
resultsAmong 1158 abortion events performed during enrollment and follow-up period, 99.1 % were found in at least one of the administrative data sources. The sensitivities for the two databases, evaluated using a gold standard, were 97.7 % (95 % confidence interval (CI): 96.6-98.5) for the MSP database and 91.9 % (95 % CI: 90.0-93.4) for the DAD.
conclusionsAbortion events coded in the BC health administrative databases are highly accurate. Single-payer health administrative databases at the provincial level in Canada have the potential to offer valid data reflecting abortion events.
trial registrationClinicalTrials.gov Identifier NCT01174225 , Current Controlled Trials ISRCTN19506752 .
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