2. Method
2.1. Participants
One hundred and sixty two nurses were recruited for investigating MSDs symptoms. All participants were female. They had been working in intensive care units, medical ward, surgical ward, emergency room, obstetrics and gynecology ward, stem-cell transplantation care unit, operation room and anesthesia recovery room. The intensive care units include units for medical intensive, surgical intensive, cardio-intensive and newborn intensive cares. Information on age, stature, weight and length of service is summarized in Table 1.