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Biomedical subjects

J K Davidson

Publications and source records attributed to J K Davidson.

89 records · Page 5Linked to original sources
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Communicating with new sex partners: college women and questions that make a difference.

Despite efforts of sexuality educators, many college women are uninfluenced by information about risks of contracting a sexually transmitted disease or initiating an unintentional pregnancy. This study used an anonymous questionnaire administered to 438 never-married undergraduate women to investigate the failure of college women to ask new sex partners about sexual histories prior to sexual intercourse. Significant differences were found between the three subsample groups: those who "almost always" (AA), "sometimes" (S), or "rarely" (R) asked their sex partners about sexual histories. At first sexual intercourse, AA group women were significantly more likely to have been in a committed relationship, to have been contracepted, and to have been older; and they were less likely to have been under the influence of alcohol or other mind-altering substances. Furthermore, AA group women also reported fewer sex partners than other respondents. They also were more likely to discuss sexually related topics with their partners, to reach sexual decisions by their own thoughts, and to set personal goals.

Adult↗
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Rembrandt revealed.

Explore the source record for details and available documents.

Famous Persons↗
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A cohort study of mortality in two clinic populations of patients with diabetes mellitus.

Mortality rates of two cohorts of patients with diabetes mellitus are estimated and compared. The Atlanta cohort is defined as all black patients receiving care at the diabetes clinic of Grady Memorial Hospital for the first time during calendar year 1971. The Memphis cohort is defined as all black patients referred from the City of Memphis Hospital outpatient clinic to a decentralized neighborhood clinic operated by the Memphis and Shelby County Health Department during September 1969 through August 1970. The Atlanta program discontinued all prescriptions of oral hypoglycemic drugs and emphasized instead an aggressive diet therapy. The Memphis program has used diet therapy but also insulin and/or oral hypoglycemic agents according to current guidelines. The ratios of observed to expected deaths (standardized mortality ratios) were remarkably similar for the two cohorts. In both cohorts the standardized mortality ratios were greatest for the youngest patients and for those patients whose duration of illness was longest. Nine-year survival rates, estimated by the life-table method and adjusted for differences in frequency distributions of entry age and duration of diabetes, were also similar for the two cohorts.

Actuarial Analysis↗
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The Memphis and Atlanta continuing care programs for diabetes. II. Comparative analyses of demographic characteristics, treatment methods, and outcomes over a 9-10-year follow-up period.

A total of 1467 black patients (911 in Atlanta, 556 in Memphis) were selected (1969-70) and followed longitudinally and prospectively until death (404 patients) or through 31 December 1979, when 676 were alive and active and 387 were lost to follow-up. The women/men ratio in each cohort was 4.7/1. Women had more excess body wt than men at maximum weight and at time of diagnosis. At selection, the Atlanta cohort was older (60.2 vs 56.8 yr), had diabetes longer (7.5 vs 5.2 yr), and had a higher initial mean random plasma glucose (MRPG) level (217 vs 195 mg/dl) than the Memphis cohort. The Atlanta cohort was on sulfonylurea/phenformin therapy, which was discontinued at entry. After 9-10 yr follow-up, the MRPG level was not significantly different from the initial level in either cohort, and the Atlanta cohort level was still significantly higher (221 vs 185 mg/dl). Mean weight loss after 9-10 yr follow-up was significantly greater in Atlanta (17.7 vs 6.8 lb). Those under good control in 1979, as indicated by random plasma glucose (RPG) of less than 150 mg/dl, lost more weight (means: Atlanta, 23 lb; Memphis, 8.7 lb) than those under poor control in 1979 (RPG greater than 300 mg/dl; means: Atlanta, 14.7 lb; Memphis, 1.3 lb). In the pooled alive and active cohorts (1979), 29.1% were under good control (RPG less than 150 mg/dl); 52.9%, fair control (RPG = 150-300 mg/dl); and 18.0%, poor control (RPG greater than 300 mg/dl). Of the 639 alive and active patients, paired plasma glucose levels were less than 200 mg/dl in 207 patients in 1969-70 and less than 200 mg/dl in 322 in 1979.(ABSTRACT TRUNCATED AT 250 WORDS)

Aged↗
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Transferring patients with insulin-dependent diabetes mellitus from animal-source insulins to recombinant DNA human insulin: clinical experience.

The efficacy and safety of transferring diabetic patients being treated with animal insulin to recombinant deoxyribonucleic acid human insulin (biosynthetic human insulin) was evaluated in 481 patients. Paired initial and follow-up random plasma glucose and hemoglobin Alc levels were available for 330 individuals. One year or longer after transfer to human insulin, the patients' morning and evening insulin doses remained virtually unchanged. After transfer, there were significant decreases in the mean levels of random plasma glucose, in glycosylated hemoglobin Alc, and in serum insulin antibody titers. These results indicate that patients who are being treated with animal-source insulins (ie, beef and/or pork) can be safely and effectively transferred to treatment with biosynthetic human insulin.

Animals↗
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Self-perceived differences in the female orgasmic response.

This investigation was concerned with perceived differences between orgasms experienced via masturbation, petting, and sexual intercourse and the relationship of such differences, if any, to sexual satisfaction. An anonymous questionnaire was distributed to registered nurses in fifteen states concerning sexual attitudes, sexual behavior and the female sexual response. Although 76% of these respondents reported perceived differences between orgasms experienced via masturbation, petting, and sexual intercourse, no differences were found between respondent groups for either physiological or psychological sexual satisfaction. Several other variables were identified which affected perceived levels of sexual satisfaction. A clear understanding of these findings should be helpful in counseling patients with sexual problems.

Adult↗