Jara-Palomares, LuisOtero, RemediosJimenez, DavidPraena-Fernandez, Juan ManuelFont, CarmeFalga, ConxitaSoler, SilviaRiesco, DavidVerhamme, PeterMonreal, ManuelRIETE Registry2023-01-252023-01-252018-03-20http://hdl.handle.net/10668/12255The usefulness of a diagnostic workup for occult cancer in patients with venous thromboembolism (VTE) is controversial. We used the RIETE (Registro Informatizado Enfermedad Trombo Embólica) database to perform a nested case-control study to validate a prognostic score that identifies patients with unprovoked VTE at increased risk for cancer. We dichotomized patients as having low- (≤2 points) or high (≥3 points) risk for cancer, and tried to validate the score at 12 and 24 months. From January 2014 to October 2016, 11,695 VTE patients were recruited. Of these, 1,360 with unprovoked VTE (11.6%) were eligible for the study. At 12 months, 52 patients (3.8%; 95%CI: 2.9-5%) were diagnosed with cancer. Among 905 patients (67%) scoring ≤2 points, 22 (2.4%) had cancer. Among 455 scoring ≥3 points, 30 (6.6%) had cancer (hazard ratio 2.8; 95%CI 1.6-5; penAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/AdultAgedAged, 80 and overCase-Control StudiesDatabases, FactualDiagnosis, DifferentialEarly Detection of CancerFemaleFollow-Up StudiesHumansMaleMiddle AgedNeoplasmsNeoplasms, Unknown PrimaryPrognosisRegistriesResearch DesignRisk FactorsVenous Thromboembolismresearch article29558509open access10.1371/journal.pone.01946731932-6203PMC5860754https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0194673&type=printablehttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC5860754/pdf