A prospective study of thrombocytopenia and prognosis in intensive care.

To study the incidence and prognosis of thrombocytopenia in an adult critically ill population. 329 patients consecutively admitted during a 5-month period to the medical intensive care unit (ICU) of a university hospital (212 patients) and a medical-surgical ICU of a regional hospital (117 patients), were prospectively surveyed. The primary outcome measure was ICU mortality.