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Biomedical subjects

S M Garn

Publications and source records attributed to S M Garn.

At least 91 records · Page 5Linked to original sources
PubMed1981

Suggested sex and age appropriate values for "low" and "deficient" hemoglobin levels.

New values for "deficient" and "low" Hb have been calculated as the smoothed 5th and the 15th percentiles for white males and females included in the National Health and Nutrition Examination Survey (NHANES I). With separate tabulations for 18.389 white individuals contained in this data base and for 12,320 with transferrin saturation values of 16% and above, these new values have the advantage of being fully age-specific, based upon a single source of hematological data and providing quantitative definitions of "low" and "deficient."

Adolescent↗
PubMed1981

Contributions of the radiographic image to our knowledge of human growth.

Radiography has brought about marked advances in our knowledge of human growth offering information on sequence and timing as well as changes in dimensions and proportions and segmental and "relative" growth. Not only has it been possible to measure growth rates and changes in relative rates at the two ends of a single bone and in homologous bones across the body axis, but it has also been practical to measure rates of bone loss (due to malnutrition and malabsorption) in the presence of simultaneous bone gain. Careful and detailed analysis of the radiographic image, the use of radiogrammetric techniques and extension of the same techniques to the fetal skeleton has afforded new knowledge on continuing growth throughout the life span and on the earliest (fetal) attainment of adult bone shapes and proportions.

Bone Development↗
PubMed1979

The effect of prenatal factors on crown dimensions.

As shown in 870 white participants in the National Collaborative Perinatal Project (NCPP), maternal health status during pregnancy and birth size are systematically related to mesiodistal and buccolingual crown dimensions of I1, I2, dc, dm1, dm2 and M1. Maternal diabetes, maternal hypothyroidism and large size at birth are associated with larger maxillary and mandibular teeth in white children. Conversely, deciduous and permanent crown diameters are diminished in maternal hypertension, and in low birthweight and small birth-length conditions. These findings suggest that maternal and fetal (or gestational) determinants of both deciduous and permanent tooth crown dimensions may account for as much as half of crown-size variability with major implications to population comparisons and historical odontometric differences and trends.

Birth Weight↗