0–90 days | 91–365 days | 1+ years | Overall | |||||
---|---|---|---|---|---|---|---|---|
O | SIR (95% CI) | O | SIR (95% CI) | O | SIR (95% CI) | O | SIR (95% CI) | |
All patients | 33 | 9.96 (6.85 to 13.99) | 17 | 1.90 (1.11 to 3.05) | 108 | 1.50 (1.23 to 1.81) | 158 | 1.88 (1.60 to 2.19) |
Type of VTE | ||||||||
SVT | 1 | 3.95 (0.10 to 21.98) | 2 | 2.78 (0.34 to 10.04) | 9 | 1.46 (0.67 to 2.77) | 12 | 1.68 (0.87 to 2.93) |
DVT | 21 | 10.36 (6.41 to 15.84) | 11 | 1.97 (0.98 to 3.53) | 78 | 1.65 (1.30 to 2.06) | 110 | 2.00 (1.65 to 2.42) |
PE | 11 | 10.64 (5.30 to 19.04) | 4 | 11.52 (0.41 to 3.89) | 21 | 1.14 (0.70 to 1.74) | 36 | 1.63 (1.14 to 2.25) |
Gender | ||||||||
Male | 19 | 11.20 (6.74 to 17.49) | 9 | 1.99 (0.91 to 3.78) | 60 | 1.53 (1.17 to 1.97) | 88 | 1.94 (1.56 to 2.39) |
Female | 14 | 8.66 (4.73 to 14.53) | 8 | 1.82 (0.78 to 3.58) | 48 | 1.46 (1.08 to 1.94) | 70 | 1.80 (1.40 to 2.28) |
Age (years) | ||||||||
<60 | 8 | 9.98 (4.30 to 19.66) | 6 | 2.52 (0.93 to 5.50) | 53 | 1.63 (1.22 to 2.14) | 67 | 1.88 (1.46 to 2.39) |
60+ | 25 | 9.95 (6.44 to 14.69) | 11 | 1.68 (0.84 to 3.00) | 55 | 1.39 (1.05 to 1.81) | 91 | 1.88 (1.51 to 2.30) |
Period of VTE diagnosis | ||||||||
1980–1993 | 4 | 7.41 (2.02 to 18.98) | 2 | 1.45 (0.18 to 5.23) | 34 | 1.74 (1.21 to 2.44) | 40 | 1.87 (1.33 to 2.54) |
1994–2010 | 29 | 10.45 (7.00 to 15.02) | 15 | 1.99 (1.11 to 3.28) | 74 | 1.41 (1.11 to 1.77) | 118 | 1.88 (1.56 to 2.25) |
Alcoholism-related disease | ||||||||
Yes | 5 | 8.34 (2.70 to 19.44) | 0 | – | 31 | 2.37 (1.61 to 3.37) | 36 | 2.34 (1.64 to 3.24) |
No | 28 | 10.32 (6.85 to 14.91) | 17 | 2.35 (1.37 to 3.77) | 77 | 1.31 (1.03 to 1.63) | 122 | 1.77 (1.47 to 2.12) |
Risk factors for VTE* | ||||||||
Absent | 17 | 10.30 (6.00 to 16.49) | 10 | 2.22 (1.06 to 4.08) | 56 | 1.57 (1.18 to 2.03) | 83 | 1.98 (1.58 to 2.45) |
Present | 16 | 9.62 (5.50 to 15.62) | 7 | 1.58 (0.63 to 3.26) | 52 | 1.44 (1.07 to 1.89) | 75 | 1.77 (1.40 to 2.22) |
*Patients with at least one of the following conditions: fracture, trauma, surgery, childbirth or pregnancy diagnosed in the 90 days before VTE admission or a previous hospital diagnosis of obesity, inflammatory bowel disease or psychiatric disorder (as a marker of antipsychotic drug use) at any time before or during the hospital contact for VTE.
DVT, deep vein thrombosis; O, observed; PE, pulmonary embolism; SIR, standardised incidence ratio; SVT, superficial venous thrombosis; VTE, venous thromboembolism.