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Biomedical subjects

K Ford

Publications and source records attributed to K Ford.

17 recordsLinked to original sources
PubMed1992

Correlation between subsequent lengths of postpartum amenorrhoea in a prospective study of breast-feeding women in rural Bangladesh.

The relationship between subsequent lengths of lactational amenorrhoea for individual women in a prospective study of breast-feeding women in Bangladesh was studied. The data indicate that previous length of amenorrhoea has significant predictive value for the subsequent length of amenorrhoea. Information on previous experience with lactational amenorrhoea should be therefore incorporated into guidelines for the introduction of family planning during lactation.

Amenorrhea↗
PubMed1992

A seasonal depression. Management of seasonal affective disorder.

1. SAD is a mood disorder characterised by recurring cyclic periods of autumn/winter dysthymia alternating with late spring/summer euthymia or hypomania. 2. It is now thought that SAD sufferers may be deficient in certain brain chemicals, and it is likely that the interactions of a number of neurotransmitters are responsible for the disorder. 3. In the UK, 72% of SAD sufferers report an increase in sleep from around seven hours in the summer to nine in winter. 4. Phototherapy has been proved an effective treatment for SAD, and lamps for phototherapy are becoming increasingly available.

Humans↗
PubMed1991

Urban African-American and Hispanic adolescents and young adults: who do they talk to about AIDS and condoms? What are they learning?

This paper reports on the first qualitative part of a study designed to investigate factors related to the use of condoms among African-American and Hispanic adolescents and young adults in Detroit. This paper describes who young, urban, African-American and Hispanic persons talk to about AIDS and condoms and what they are learning. The paper provides data on attitudes and beliefs about AIDS and condoms that are needed for further research and for prevention programs.

Acquired Immunodeficiency Syndrome↗
PubMed1990

Who is breast-feeding? Implications of associated social and biomedical variables for research on the consequences of method of infant feeding.

The objective of this paper is to identify social and biomedical variables that influence the selection of methods of infant feeding in the United States and to provide guidelines for the choice of control variables in the design and interpretation of studies that examine the influence of breast-feeding on infant and child health. Data were drawn from a national household survey, the Child Health Supplement of the 1981 Health Interview Survey conducted by the National Center for Health Statistics. Relationships between demographic, socioeconomic, and health variables were studied for the total sample of children under age 5 y as well as for black and white women separately. The data provide evidence for the importance of both social and health variables as selection factors for breast-feeding in the United States.

Adult↗
PubMed1989

Bedside blood gas and electrolyte monitoring in critically ill patients.

A major advantage of near-patient testing is time savings that facilitate important diagnostic and therapeutic decisions. Recent technologic advances have made available a number of systems that allow for near-patient testing. The reliability of these instruments must be validated in the clinical setting in the hands of their intended users. We evaluated the Gemstat blood gas, electrolyte, and Hct portable analyzer in the critical care setting when used by numerous individuals with no previous laboratory training. Blood gas, Na, K, and Hct results were highly correlated with those from the clinical laboratories (PaO2, r = .96; PaCO2, r = .92, pH, r = .96; Na, r = .93; K, r = .95; Hct, r = .91). The Gemstat represents a new generation of portable, rapid, safe, and accurate instruments that are well suited for ICU settings. The instrument can facilitate clinical management of patients, and may improve patient care.

Blood Gas Analysis↗
PubMed1989

Birth-interval dynamics in rural Bangladesh and maternal weight.

This article reports on the results of a study conducted in rural Bangladesh on the influence of maternal weight on the components of birth intervals, including gestation and intrauterine mortality, the duration of postpartum amenorrhea, and the duration of waiting time to conception (the menstrual interval). When biological factors (including maternal age, parity, and supplementation practices) and behavioral variables, including religion, education, and occupation, were controlled, maternal weight was found to be related to the risk of intrauterine mortality and to the probability of resuming menses in the postpartum period. The implications of these findings for policies and programs in developing countries are discussed.

Amenorrhea↗
PubMed1987

DNA sequence preferences for an intercalating porphyrin compound revealed by footprinting.

The DNA sequence preferences of the compound meso-tetra-(4-N-methyl(pyridyl) porphyrin and its nickel complex have been investigated by means of footprinting experiments on several DNA fragments, using DNAase I and micrococcal nuclease as footprinting agents. A complex pattern of both AT and GC-protected sites was found. Ligand-induced long-range conformational changes were inferred in several instances to be related to the observed large-scale blockages of enzymatic cutting.

Base Sequence↗
PubMed1986

Digital subtraction arthrography of the prosthetic hip.

Digital subtraction techniques are easily adapted to the evaluation of loosening in total hip prostheses, allowing real time review of injection dynamics and data manipulation after the study. We have successfully used both standard radiographic and digital imaging techniques in the evaluation of 15 prosthetic hip joints. The digital results are comparable to and often better than those of standard radiographic techniques for the evaluation of loosening in total hip prostheses.

Arthrography↗
PubMed1976

Repeat abortion.

A reanalysis of the repeat abortion experience of New York City residents during July 1, 1970 to June 30, 1972 is undertaken on the basis of a probability model that generates repeat abortion ratios as a function of assumptions about fecundity, contraceptive efficiency, and exposure lengths. Tested are three hypotheses put forward by Daily et al. in a 1973 analysis: (i) the low repeat abortion ratio of .0245 is attributable in part to underreporting of registered induced abortions as repeat ones; (ii) a major part of the rise in repeat abortion ratios, from virtually zero to six percent over four consecutive six-month intervals, is explainable in terms of the rising volume of exposure time to risk of repeat abortion relative to the stream of initial abortions; and (iii) the higher abortion ratios of women in their twenties compared to those of older or younger women is ascribable to "differences in fecundity and intercourse frequency." Support is found for the first two hypotheses, and a mixed outcome for the third.

Abortion, Spontaneous↗
PubMed1976

Abortion and family-binding models: fertility limitation in Hungary.

This paper demonstrates how family-building models can be used for checking the quality of abortion data. A family-building model, called FERMODA, is presented and used to check whether the available data on abortion for Hungary are consistent with Hungarian data on other aspects of family building. Model cohorts are generated, using in FERMODA the proportions of women married and the birth and abortion rates of two selected Hungarian cohorts. The estimates obtained from the simulated cohorts concerning use of contraception are compared with the information available on contraception, and, on the basis of this comparison, a judgment is made about the quality of abortion data for Hungary.

Abortion, Induced↗
PubMedDate not supplied

AIDS risk behaviors of minority youth living in Detroit.

During summer 1989, 30 Hispanic (15 men, 15 women) and 34 African American (17 men, 17 women) adolescents and young adults from Detroit participated in face-to-face interviews designed to provide preliminary descriptive data of this population's AIDS and condom knowledge, sexual behavior, and condom and needle use behavior. Results suggest almost all knew that AIDS could be transmitted sexually or by needle sharing, and most participants knew condoms protect against AIDS. Although many sexually active participants reported using condoms, the majority reported engaging in unprotected vaginal intercourse. More Hispanic women reported episodes of unprotected intercourse than any other group. The following results may be useful in designing AIDS prevention strategies. Many participants seemed unaware of the ineffectiveness of nonlatex condoms. Hispanic female participants seemed to have a low level of knowledge concerning their own reproductive health. Small numbers of Hispanic and African American participants reported that people in their neighborhood used needles to self-administer steroids or vitamins.

Acquired Immunodeficiency Syndrome↗
PubMedDate not supplied

Contraceptive use in the United States, 1973--1976.

The pill and sterilization were the main methods used by U.S. married couples in 1976 to prevent pregnancy. In 1973 the poor were more likely than the more affluent, and blacks as likely as whites, to use the most effective methods. By 1976 this was no longer true, because more blacks turned to traditional and folk methods and the sterilization increase was largely limited to more affluent whites.

Adolescent↗