Table 2 Characteristics of the patients who had nausea and/or vomiting.

Patient no.	Age	Sex	Painful condition	Morphine dose (mg)	Study group
1	74	F	Colles' fracture	7	Drug
2	78	F	Hip injury	7	Drug
3	56	F	Clavicular fracture	10	Saline
4	33	M	Shoulder injury	10	Saline
5	45	F	Colles' fracture	8	Saline
6	77	F	Femoral neck fracture	5.5	Saline
7	88	F	Femoral neck fracture	6	Saline