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close this bookCauses and Mechanisms of Linear Growth Retardation (International Dietary Energy Consultative Group - IDECG, 1993, 216 pages)
close this folderEffects of macrobiotic diets on linear growth in infants and children until 10 years of age
View the document(introductory text...)
View the document1. Introduction
View the document2. Subjects and methods
View the document3. Conversion into nutrients
View the document4. Statistical analysis
View the document5. Results
View the document6. Recommendations for the macrobiotic diet
View the document7. Two-year follow-up study
View the document8. Discussion
View the documentReferences
View the documentDiscussion of papers by Allen, Neumann & Harrison and Dagnelie et al.
View the documentReference

4. Statistical analysis

Standard deviation scores (SDS) were calculated from the median (P50) and standard deviation of the Dutch reference data (Roede & Van Wieringen, 1985; Gerver, 1988). Growth velocities were either calculated as the increments from the first to the last measurement (expressed in units/year) or expressed in terms of change in standard deviation scores. Student's t-test was used to compare the means of two independent samples. Longitudinal changes in SDS were tested by paired t-test. In the mixed-longitudinal study, the level of successive measurements in all cohorts were simultaneously compared by multivariate analysis of variance (MANOVA). Multiple regression models were fitted in order to determine the independent effects of different variables on birth weight, weight gain, linear growth, and the presence of skin and muscle wasting and rickets after adjustment for confounding variables.