Venous thromboembolism

1. Oral oestrogen therapy raises the risk of venous thromboembolism in humans (HR 1.6, 95% CI 1.5 to 1.8).

   Humanscompared with no current usealone or combined with progestinfemales

   Contemporary menopausal hormone therapy and thrombotic disease: nationwide nested case-control study · BMJ (Clinical research ed.) · 23 Sep 2026

Oral oestrogen therapy →

1. Operative fixation raises the risk of venous thromboembolism in humans.

   Humansolder adults with pelvic ring fractures

   Operative versus nonoperative management of pelvic ring fractures in older adults: A propensity-matched analysis of mortality and complications · Injury · 12 Sep 2026

Operative fixation →

1. Posttraumatic stress disorder raises the risk of venous thromboembolism in humans (HR = 1.34, 95% CI: 1.23-1.45).

   Humansapproximately 6 yearsfemalesn = 202,896

   Impact of posttraumatic stress disorder on incident cardiovascular outcomes in women veterans: a retrospective longitudinal study · EClinicalMedicine · 8 Sep 2026

Posttraumatic stress disorder →

1. Exercise lowers the risk of venous thromboembolism in humans (aOR 0.69, 95% CI 0.49-0.99).

   Humansn = 118,340

   Association between preoperative physical exercise and the risk of postoperative venous thromboembolism: nationwide population-based cohort study · BJS open · 4 Sep 2026

Exercise →