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Table 1 Patient characteristics and risk factors in 281 patients with first-time VTE, grouped by age

From: Incidence of venous thromboembolism in northern Sweden (VEINS): a population-based study

  All (n = 281) 18-64 years (n = 92) 65-79 years (n = 100) 80 years and over (n = 89)
Male 128 (45.6) 47 (51.1) 54 (54.0) 27 (30.3)
Mean age (years) 70.0 ± 15.2 52.3 ± 10.8 72.7 ± 4.2 85.5 ± 4.1
Risk factors     
Recent hospitalizationa 120 (42.7) 39 (42.4) 44 (44.0) 37 (41.6)
Recent surgical interventiona 42 (14.9) 23 (25.0) 11 (11.0) 8 (9.0)
Recent immobilization >48 hoursa 42 (14.9) 17 (18.5) 13 (13.0) 12 (13.5)
Recent traumaa 15 (5.3) 7 (7.6) 6 (6.0) 2 (2.2)
Recent cast therapya 5 (1.8) 3 (3.3) 2 (2.0) 0 (0)
Recent travel > 8 hoursa 4 (1.4) 3 (3.3) 1 (1.0) 0 (0)
Concurrent malignancy 88 (31.3) 24 (26.1) 45 (45.0) 19 (21.3)
Malignancy diagnosed within 2 years of VTE event 7 (2.5) 2 (2.2) 4 (4.0) 1 (1.1)
Central venous line 27 (9.6) 13 (14.1) 12 (12.0) 2 (2.2)
Positive heredity for VTE 7 (2.5) 5 (5.4) 2 (2.0) 0 (0)
Coagulation disorder 7 (2.5) 7 (7.6) 0 (0) 0 (0)
Hormone therapyb 7 (4.6) 5 (11.1) 0 (0) 2 (3.2)
Pregnancyb 0 (0) 0 (0) 0 (0) 0 (0)
Postpartumb 1 (0.7) 1 (2.2) 0 (0) 0 (0)
No risk factors 116 (41.3) 29 (31.5) 35 (35.0) 52 (58.4)
VTE prophylaxis at diagnosis 11 (3.9) 2 (2.2) 5 (5.0) 4 (4.5)
  1. Values represent the mean ± SD or n (%); VTE = venous thromboembolism.
  2. a = Within 60 days before the VTE event.
  3. b = Percentage of female patients only.