EPIDEMIOLOGY OF NEEDLESTICK INJURIES IN HOUSE OFFICERS

Eighty-eight medical students, interns, and residents were surveyed to study the epidemiology of their percutaneous exposures to blood. Respondents described 159 injuries in 221 person-years (py) of exposure in hospital wards and 213 injuries in 166 py of exposure in operating rooms.Nearly all injuries (>98%) were needlesticks; <5% were reported to occupational health services.Rates of ward-related injury were highest for students (O.97/py) and decreased during training.Most injuries were due to recapping of used needles. In contrast to ward-related injury, rates of operating room-related injury were relatively lowfor nonsurgical students and interns (O.3/py), higher for surgical students (1.36/py), and stable over surgical residency training (mean, 5.4/py).Virtually all surgical injuries occurred during suturing. Further research into mechanisms of needlestick injuries and product design for their prevention are needed. © 1990, by The University of Chicago.