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Biomedical subjects

H A Kahn

Publications and source records attributed to H A Kahn.

At least 37 records · Page 2Linked to original sources
PubMed1976

The association of femal hormones with blindness from diabetic retinopathy.

The rates of blindness from diabetic retinopathy with or without other causes for persons in the Model Reporting Area (14 states) were determined in five-year intervals by sex. Diabetic males younger than 45 years of age had a higher rate of diabetic blindness than females under 45 years of age. However, for ages 45 and older, the risks of blindness among diabetics were approximately equal for men and women. These data were consistent with the hypothesis that the presence of female hormones improves the prognosis in diabetic retinopathy.

Adult↗
PubMed1976

Senile cataract extraction and diabetes.

A study of hospital discharge diagnoses from both national data and data from a local medical centre indicates that diabetes substantially increases the probability of cataract extraction at age 40-49, about doubles or triples the probability for age 50-69, and has little effect on risk at age 70 and over. Strengths and weaknesses of the data are discussed. Other reports, generally estimating a much stronger association between diabetes and probability of cataract extraction, at least at age 50 and above, are critically evaluated.

Adult↗
PubMed1975

Blindness from glaucoma.

We observed an overall ratio of 8:1 for nonwhite to white primary glaucoma blindness. Our fragmentary evidence suggested that the ratio of underlying disease, that is, nonblinding glaucoma or intraocular pressure differentials, may be closer to 2:1 than 8:1 as between nonwhites and whites. The remaining four fold differential can be explained by a combination of the following: more complete reporting for nonwhites, reporting for medical care later in the disease than whites, and poorer response to treatment for nonwhites compared to whites. The trend of new blindness from glaucoma for recent years was stationary in the United States, England, and Wales.

Adolescent↗
PubMed1975

Prevalence of diabetic retinopathy. Age, sex, and duration of diabetes.

From a list of all patients seen at the Joslin Clinic in a recent 6-month period, a random sample of 965 was selected for record review by a clinic assistant. A house physician specializing in diabetes then verified and adjusted the assistant's work as necessary. The data were analyzed both by simple cross-classification and by fitting a multiple logistic risk function. As often reported previously, we found a strong positive association between retinopathy and duration of diabetes. One of our findings which has not been so clearly reported in earlier papers is that the positive association between retinopathy and age is limited to the group with diabetes of less than 10 years' duration. We also found sex differences in retinopathy prevalence which were not large enough to rule out attributing them to chance.

Adult↗