Research is lacking on factors influencing nurses' decision-making dir
ected at the diagnosis of pain in children and its related interventio
ns. This paper reports on two studies, namely a qualitative study and
its replication, in which we explored factors influencing nurses' pain
assessments and interventions in children. Those factors found to inf
luence nurses' decisions were: medical diagnosis, child's expression,
age, and parents, and the nurses' knowledge, experience, attitude and
workload. Some of these factors seem to have more influence than other
s. For example, the presence of a medical diagnosis seems to legitimat
e being in pain. Furthermore, it is suggested that mainly vocal expres
sions, especially crying, influence nurses' decisions to administer an
algesics. Finally, nurses' negative views on non-narcotic analgesics w
ere striking. In this paper, the results of both studies and their rel
ationship to information reported in the literature are further elabor
ated and discussed, and hypotheses on strength and direction of influe
nce of factors on pain assessment and intervention are generated.