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Biomedical subjects

W Myhra

Publications and source records attributed to W Myhra.

3 recordsLinked to original sources
PubMed1992

Maternal smoking and the risk of polyhydramnios.

BACKGROUND: Washington State birth certificates were used to conduct a population-based case-control study to assess the possible association of maternal smoking with polyhydramnios. METHODS: All singleton births complicated by polyhydramnios (n = 557) were identified from the vital records for the years 1984 to 1987. For comparison, 1671 records were randomly selected for the same years from singleton births uncomplicated by polyhydramnios. RESULTS: Women who reportedly smoked prenatally were found to be at increased risk for polyhydramnios (relative risk [RR] = 1.7, 95% confidence interval [CI] = 1.5-2.1, adjusted for marital status, maternal age, and parity). When women with conditions known to be associated with polyhydramnios were excluded, the risk for those who smoked prenatally remained elevated (RR = 1.8, 95% CI = 1.1-2.3). CONCLUSION: Overdistention of the uterus from polyhydramnios may cause a variety of pregnancy complications. The observed association of smoking with polyhydramnios may be a further indication for public health interventions aimed at preventing smoking during pregnancy.

Adult↗
PubMed1989

Sero survey of human immunodeficiency virus infection in women at a family planning clinic: absence of infection in an indigent population in San Francisco.

To determine the seroprevalence of human immunodeficiency virus (HIV) in contracepting women, 1,308 consecutive attendees at an inner-city family planning clinic completed a risk factor questionnaire and were then asked to have an HIV test. None of the 1,000 women tested was seropositive. Preventive efforts in family planning clinics are likely to be productive because few contraceptors, including those with risk factors, are already infected. The factors which determine differences in HIV positivity between childbearing and contracepting women, who are similar in demographic and HIV risk characteristics, warrant further investigation.

Adolescent↗