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Biomedical subjects

O Johnston

Publications and source records attributed to O Johnston.

10 recordsLinked to original sources
PubMed1987

Poor co-ordination in 5 year olds: a screening test for use in schools.

A simple standardized screening test (South Australian Motor Co-ordination Screening Test, SAM Test) was developed to screen for poor co-ordination in 5 year olds. This SAM Test, which can be used by teachers, nurses and doctors, has explicit pass/fail criteria and has classified correctly 90% of children. The McCarthy Motor Scales, which are time consuming and limited to use by psychologists, were used to categorize 60 poorly co-ordinated and 60 normal children. The 120 children thus selected were tested on 19 items covering gross and fine motor skills. Statistical analysis to determine which items best discriminated between the two groups found the following five gross motor items to be most effective: one leg balancing, hopping, heel-toe walking on line, jumping over ribbon and dropping ball and catching.

Child, Preschool↗
PubMed1977

On the meaning of increased fluctuating dental asymmetry: a cross populational study.

Suarez reports a greater magnitude of fluctuating dental asymmetry for Neandertal sample when compared with a sample of modern Ohio whites. He postulates that this greater antimeric variance could be due to a greater degree of inbreeding in the Neandertal populations. In the present investigation, the magnitude of fluctuating dental asymmetry is evaluated for Eskimo and Pueblo populations. These populations were found to exhibit dental variance of equal magnitude to that of the Neandertal population. As these populations are not highly inbred, a stress related mechanism is suggested to explain these observations and the inbreeding hypothesis is rejected. The implications of this mechanism to Brace's Probable Mutation Effect are discussed.

Bicuspid↗
PubMed1977

Changes in grade and stage of recurrent bladder tumors.

A retrospective study with adequate followup of 5 years of longer of 114 patients who had transurethral resection for cure or control of bladder tumors and in whom there were 1 or more recurrences is reported. There was recurrence of the tumor in a higher grade in 19 per cent of the cases and in a higher stage in 22 per cent. The interval between the treatment of the original tumor and a recurrence in a higher grade or state varied from 0.25 (3 months) to 27 years. When a low grade or low stage tumor recurs in a higher category in less than 3 years more aggressive treatment should be considered.

Follow-Up Studies↗
PubMedDate not supplied

Poorly coordinated children: a survey of 95 cases.

Screening of 717 5-year-olds and 757 7-year-olds, found 55 of the former and 77 of the latter possibly to be poorly coordinated. Further diagnostic testing with the McCarthy Motor Scales confirmed the problem in a total of 95 children, a prevalence of 6.4%. Neurological examination showed 43% of the 5-year-olds and 21% of the 7-year-olds to have choreiform movements. Of the total 95, proprioception was abnormal in 40%, but abnormal muscle tone present in only 4%. An increased prevalence of hearing loss and obesity and a history of developmental delays was found. Low birth weights, prematurity, post-maturity and perinatal problems were significantly associated with poor coordination. Socioeconomic status was not a significant factor. The difficulties of testing and measuring poor coordination and the need for more precise measures are discussed. Follow-up of at risk children at age 5 with tests of motor coordination is recommended.

Child↗
PubMedDate not supplied

School health and four-year-olds.

The results of comprehensive physical, psychological and developmental assessments of 67 four-year-olds are described. The value of this type of review, and the use of nurses and teachers in preschool medical examinations is discussed.

Australia↗