age guidelines for d dimer
For each individual subject, a VTE recurrence score was calculated based on a sum of scores of four predictors: age, sex, hormone use at the time of the VTE, and D-dimer measured three weeks after stopping oral anticoagulation. The final prognostic score was based on regression coefficients for each predictor (Table). A score of +2 was assigned for abnormal D-dimer, +1 for age &lt; 50 years old, +1 for male sex, and -2 for hormone use at onset of VTE (among women), generating a D2A1S1H-2 score.