Table 2: The characteristics of the Vietnamese Comfort-B were assessed by 34 nurses of the Nhi Dong 1 Hospital

Characteristics of Comfort-B	Mean	SD
Comfort-B is clear	4.12	0.41
Comfort-B is understandable	4.15	0.44
Comfort-B is easy to use	4.03	0.52
Comfort-B is convenient for use	4.09	0.57
Comfort-B is not time-consuming	4	0.65
Comfort-B helps nurse decide medical care	4.12	0.59
Comfort-B is feasible and applicable to clinical settings	4	0.55
Comfort-B is able to classify pain level	4.09	0.45