There is limited information on the relationship between muscle strength and recurrence and mortality after incident venous thromboembolism (VTE).
To investigate whether weak hand grip strength (HGS) was associated with risk of recurrence and mortality in patients with VTE recruited from the general population.
Participants from the Tromsø Study with a first-time VTE ( n = 545) were included, and all VTE recurrences and deaths among the participants were recorded in the period 1994 to 2020. Weak HGS was defined as lowest 25th percentile of the general population, and incidence rates for VTE recurrence and mortality according to weak vs normal (>25th percentile) HGS, with 95% CIs, were estimated.
There were 90 recurrences and 350 deaths during a median of 3.7 years of follow-up. The fully adjusted hazard ratio (HR) for overall VTE recurrence for those with weak HGS vs those with normal HGS was 2.02 (95% CI, 1.23-3.30). The corresponding HRs for recurrence were 2.22 (95% CI, 1.18-4.17) in patients with a first deep vein thrombosis and 1.60 (95% CI, 0.72-3.57) in patients with a first pulmonary embolism. The cumulative 1-year survival was 74.9% and 77.8% in those with weak and normal HGS, respectively. For overall mortality after incident VTE, the fully adjusted HR for those with weak HGS was 1.34 (95% CI, 1.04-1.72).
Hand grip strength (HGS) is related to adverse health outcomes and mortality.
We assessed the association of HGS with recurrent venous thromboembolism and mortality.
Individuals with weak HGS had a higher risk of venous thromboembolism recurrence compared with those with normal HGS.
Individuals with weak HGS had a slightly higher mortality risk than those with normal HGS.