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G Breborowicz

Publications and source records attributed to G Breborowicz.

42 records · Page 3Linked to original sources
PubMed1976

A method for testing differences in morbidity risk for affective psychoses.

A modified method for testing differences between two proportions is described and its use for testing differences in the morbidity risk for affective psychoses is discussed. The method is based upon the u test for comparisonof two proportions. An example of the application of the method to study sex differences in morbidity risk for affective psychoses in parents of probands with unipolar depression and manic-depressive psychosis presented.

Bipolar Disorder↗
PubMed1976

A new method for evaluation of karyometrical measurements.

From karyometrical measurements performed by us and from investigations of other authors it results that the obtained values of nuclear volumes are smaller than real ones. This is caused by different sectioning planes of measured nuclei. Previously published corrections seem not to reflect the real error as they are based on the analysis of the circle, and not of the sphere. In the presented paper a method is given, which may be applicated to interpretation of the results of morphometrical measurements. The proposed method is based on the well known in statistical analysis 3o rule. The obtained results were applicated to a practical example.

Animals↗
PubMedDate not supplied

A comparative study of usefulness of quantitative parameters in the description of cardiotocogram records.

This study was an attempt to choose the optimized set of the features obtained from cardiotocogram records, which could explain in the best way the variability of foetal acid-base status parameters at labour. We prepared a package of the procedures in FORTRAN language which provides the possibilities for automatic detection and recognition of the long-term variability such as accelerations and decelerations and assessing some parameters connected with short-term variability (among other things oscillation bandwidth and number of baseline crossings). The acquired variables were subjected to multivariate statistical analysis to estimate the predictive power of a particular parameter. We used the described method to predict the variation of the foetal scalp blood pH and base deficit. This let us construct a set of variables which explains the maximal part of the variability of gasometric parameters. It affords possibilities for the estimation of the relative power of a particular component calculated from the cardiotocogram pattern. We obtain 41.7% of the explained variance for pH and 38.3% for base deficit.

Female↗
PubMedDate not supplied

[Ultrasound examination in presentation A for diagnosis of maxillary sinusitis in childhood].

Maxillary sinusitis is frequent in childhood. This study aimed at evaluating the value of ultra sound in presentation A in the diagnosis of maxillary sinusitis in childhood. Altogether 324 maxillary sinuses in 162 children were examined. A value of ultra sound examination was verified comparing the obtained results with the results of X-rays, considering three classifications of the latter. Besides the attempt of correlation of the results, ultra sound specificity and sensitivity were evaluated. Relatively high sensitivity and relatively low specificity of ultra sound technique were noted. It seems that ultra sound examination in presentation A may serve as a screening technique in children. Being sensitive and safe, this technique may be used in patients who require frequent examinations in persisting chronic disorders or recurrent maxillary sinusitis. However, the obtained results should be verified with X-rays because of the low specificity of ultra sound examination, especially prior to therapy of patients with unclear clinical picture of the disease.

Child, Preschool↗