The large industry which has grown up around the estimation of nursing
requirements for a ward or for a hospital takes little account of var
iations in nursing skill; meanwhile nursing researchers tend to concen
trate on the appropriate organisation of the nursing process to delive
r best quality care. This paper, drawing on a Department of Health fun
ded study, analyses the relation between skill mix of a group of nurse
s and the quality of care provided. Detailed data was collected on 15
wards at 7 sites on both the quality and outcome of care delivered by
nurses of different grades, which allowed for analysis at several leve
ls from a specific nurse-patient interaction to the shift sessions. Th
e analysis shows a strong grade effect at the lowest level which is 'd
iluted' at each succeeding level of aggregation; there is also a stron
g ward effect at each of the lower levels of aggregation. The conclusi
on is simple; you pay for quality care.