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Cardiorespiratory fitness and future risk of venous thromboembolism
Author(s) -
Evensen Line H.,
Isaksen Trond,
Brækkan Sigrid K.,
Hansen JohnBjarne
Publication year - 2019
Publication title -
journal of thrombosis and haemostasis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.947
H-Index - 178
eISSN - 1538-7836
pISSN - 1538-7933
DOI - 10.1111/jth.14619
Subject(s) - medicine , cardiorespiratory fitness , hazard ratio , overweight , proportional hazards model , confidence interval , population , lower risk , waist , cohort , cohort study , obesity , cardiology , physical therapy , environmental health
Background Cardiorespiratory fitness ( CRF ) is a strong predictor of future arterial cardiovascular disease and premature mortality. However, there are limited data on the association between CRF and the risk of incident venous thromboembolism ( VTE ). Objectives To investigate whether estimated CRF ( eCRF ) was associated with the risk of incident VTE in a cohort recruited from the general population. Methods Participants ( n = 10 393) from the sixth survey of the Tromsø Study (2007—08) were included, and incident VTE s were recorded up to 31 December 2016. CRF was estimated in sex‐specific algorithms based on age, waist circumference, resting heart rate, and self‐reported physical activity. Hazard ratios ( HR s) with 95% confidence intervals ( CI s) of VTE according to categories of eCRF were estimated in Cox regression models adjusted for sex with age as timescale. The impact of weight status was evaluated in analyses stratified by weight category. Results There were 176 incident VTE s during follow‐up. Compared with individuals with eCRF < 85% of age‐predicted, those with eCRF of 85% to 100% and >100% of age‐predicted had 46% ( HR 0.54; 95% CI 0.39‐0.77) and 67% ( HR 0.33; 95% CI 0.20‐0.54) lower VTE risk, respectively. Compared with overweight/obese individuals with eCRF < 85% of age‐predicted, overweight/obese individuals with eCRF ≥ 85% had 50% ( HR 0.50, 95% CI 0.35‐0.74) lower risk, and normal weight individuals with eCRF ≥ 85% had 55% ( HR 0.45, 95% CI 0.30‐0.68) lower risk. Conclusions Higher eCRF was associated with lower risk of incident VTE . The association was independent of weight categories, suggesting that higher eCRF may modify the association between obesity and VTE.