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Biomedical subjects

C F Ferguson

Publications and source records attributed to C F Ferguson.

10 recordsLinked to original sources
PubMed1996

Behavioural adjustment and parental stress associated with closed head injury in children.

Parental stress and parental perception of children's behavioural problems were determined for 25 caretakers of children with closed head injury. Compared to normative samples a greater proportion of parents in this study were more stressed, and thought that their children were more behaviourally impaired. In contrast to previous studies, injury severity was not related to behavioural impairment. Parental stress was related to perceived behavioural impairment for the brain-injured sample. When compared to low-stressed parents (n = 14), high-stressed parents (n = 11) described their children as more aggressive and with more thought disorders and attention problems. Time since injury, age at injury, number of siblings, and mother's age were not different between the high- and low-stressed groups. Low income and less education were associated with the high stress levels in these parents. Test-retest data showed that, over time, parents perceived their brain-injured children as less behaviourally impaired.

Adolescent↗
PubMed1989

1989 ARRS President's Award. The validity and utility of sonography in the diagnosis of appendicitis in the community setting.

Two hundred six patients with suspected appendicitis were examined with sonography over a 6-month period in three community teaching hospitals. Of 41 patients in whom the surgeons judged the clinical findings severe enough to warrant immediate surgery (group A), 34 (83%) had appendicitis, and sonography had a sensitivity of 0.76, a specificity of 0.71, and an accuracy of 0.76. Of 165 patients in whom the surgeons judged the clinical findings severe enough to warrant hospitalization for observation but not immediate surgery (group B), 51 (31%) had appendicitis at subsequent surgery. Sonography had a sensitivity of 0.96, a specificity of 0.94, and an accuracy of 0.95. Of 49 surgeons surveyed, the mean testing threshold (i.e., the probability of appendicitis below which they would send the patient home without further tests or observation) was 0.11, and the mean treatment threshold (i.e., the probability of appendicitis above which they would operate immediately) was 0.82. The posttest probability of appendicitis with findings indicating appendicitis present on sonography was 0.93 in group A and 0.88 in group B, and with findings absent on sonography it was 0.62 in group A and 0.02 in group B. We conclude that in group A patients, the use of sonography remains controversial in the diagnosis of appendicitis, but in group B patients it is both valid and useful.

Appendicitis↗