Health-related quality of life after deep vein thrombosis

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Table 1 Socio-demographic and clinical characteristics of the study sample at the time of inclusion in the study

Variable	Study sample (n = 254)
Variable	N (%)
Demographics
Male	167 (66)
Age, mean (SD)	60 (13)
Unemployed	135 (53)
Years since diagnosis, mean (SD)	5 (2)
Time on anticoagulation (months), median (IQR)	6 (3–34)
Index DVT in left leg	132 (52)
Proximal DVT^a	161 (64)
Recurrent DVT	79 (31)
Still on anticoagulation therapy	74 (29)
Any use of ECS after DVT	233 (93)
PTS^b	121 (48)
Comorbidities
Current smoker or previous smoker	131 (53)
Current or previous cancer	20 (8)
Heart failure	12 (5)
COPD	13 (5)
Obesity	76 (30)
Provoking factors
Orthopedic surgery	25 (10)
Other extensive surgery	8 (3)
Trauma which caused immobilization	46 (18)
Pregnancy or birth	12 (5)
Hospitalization with immobilization	3 (1)
Long haul flight	25 (10)

COPD chronic obstructive pulmonary disease, ECS elastic compression stockings, PTS post thrombotic syndrome, Obesity body mass index >30, SD standard deviation
^aThe exact location of DVT was missing in 6 patients as these patients were diagnosed at another institution and were referred to Ostfold hospital for follow up
^b72 patients (28 %) were diagnosed mild-, 37 (15 %) with moderate-, and 12 (5 %) with severe PTS