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Introduction: The frequency, predisposition and significance of venous thrombi outside the legs are unclear. Our objective was to describe the incidence, risk factors, and consequences of non-leg venous thrombi in the ICU. Hypothesis: We hypothesized that non-leg-thrombi would occur in 2% of patients, would have no specific risk factors, and would not increase mortality. Methods: We conducted nested observational study in a 3746 patient …