Evidence map›Paper›PMID 32472233›Full record

Observational studyEmergency radiology2020

Predictors of positive computed tomography pulmonary angiography results.

Hind S Alsaif, Ali Hassan, Mona AlSheikh, Amal Al-Sulaibeekh, Afnan Alnasr, Alaa Alzaki, Malak Al Shammari, Omran Al Dandan

Abstract readObservational Study
PubMed Publisher
In one paragraph

Observational study in Emergency radiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Article
  2. Observational
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

8 authors.

Hind S AlsaifDepartment of Radiology, King Fahd Hospital of the University, Imam Abdulrahman Bin Faisal University, Al-Khobar, Saudi Arabia.ORCID https://orcid.org/0000-0002-1376-7652
Ali HassanDepartment of Radiology, King Fahd Hospital of the University, Imam Abdulrahman Bin Faisal University, Al-Khobar, Saudi Arabia.ORCID https://orcid.org/0000-0001-6485-5460
Mona AlSheikhDepartment of Physiology, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia.ORCID https://orcid.org/0000-0003-3095-1969
Amal Al-SulaibeekhDepartment of Emergency Medicine, King Fahd Hospital of the University, Imam Abdulrahman Bin Faisal University, Al-Khobar, Saudi Arabia.ORCID https://orcid.org/0000-0003-0247-0877
Afnan AlnasrDepartment of Radiology, King Fahd Hospital of the University, Imam Abdulrahman Bin Faisal University, Al-Khobar, Saudi Arabia.ORCID https://orcid.org/0000-0002-0574-0433
Alaa AlzakiDepartment of Internal Medicine, King Fahd Hospital of the University, Imam Abdulrahman Bin Faisal University, Al-Khobar, Saudi Arabia.ORCID https://orcid.org/0000-0002-7680-8562
Malak Al ShammariDepartment of Family and Community Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia.ORCID https://orcid.org/0000-0002-7434-7432
Omran Al DandanDepartment of Radiology, King Fahd Hospital of the University, Imam Abdulrahman Bin Faisal University, Al-Khobar, Saudi Arabia. odandan@iau.edu.sa.ORCID https://orcid.org/0000-0002-2472-8261

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeComputed tomography pulmonary angiography (CT-PA) is the diagnostic modality used for pulmonary embolism (PE). This study aimed to estimate the positive CT-PA rate and identify the predictors of positive CT-PA results.

methodsA retrospective observational study was conducted by examining the CT-PA data for ruling out PE in all adult patients who visited the King Fahd Hospital of Imam Abdulrahman Bin Faisal University. The data regarding background demographic information, clinical information, and CT-PA findings were collected from electronic health records. Data were analyzed descriptively using the chi-squared test. Multivariate regression analysis was used to identify the predictors of positive CT-PA results.

resultsIn total, 548 patients (209 male, 339 female) who underwent CT-PA scans were included. The positive CT-PA rate was 18.8%. The Charlson Comorbidity Index was not significantly associated with positive CT-PA results (p = 0.456). Multivariate logistic regression analysis revealed that smoking (odds ratio [OR] 4.96; 95% confidence interval [95% CI] 2.05-12.02) was an independent factor associated with positive CT-PA results. The CT-PA scans performed in winter and spring were 43% (OR 0.43; 95% CI 0.22-0.84) and 52% (OR 0.52; 95% CI 0.28-0.97) less likely to show positive results compared with those performed in autumn, respectively.

conclusionThe positive CT-PA rate varied significantly between seasons. Smoking was a predictor of positive CT-PA results. These findings may assist in developing interventions for improving the utilization of CT-PA scans to avoid unnecessary exposure of patients to radiation. CLINICAL

trial registrationN/A.

Indexed as

AdultAgedComorbidityComputed Tomography AngiographyFemaleHumansMaleMiddle AgedPredictive Value of TestsPulmonary EmbolismRetrospective StudiesRisk FactorsSaudi ArabiaCharlson Comorbidity IndexComputed tomography pulmonary angiographyDiagnostic yieldPositive ratePulmonary embolismSeasonal variation

Identifiers

PMID32472233

What OpenQuestion holds

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Registered trials

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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.