Biomedical subjects

S Marcoux

Publications and source records attributed to S Marcoux.

58 records · Page 4Linked to original sources

PubMedDate not supplied

Smoking during labour.

Smoking in hospitals is now forbidden. In several hospitals, however, women in labour are allowed to smoke in designated smoking areas. This study assesses whether smoking during labour increases the carboxyhaemoglobin concentrations in maternal and cord blood, taking into account the number of cigarettes smoked during pregnancy, duration of labour and parity. Women were questioned on their smoking behaviour shortly after delivery. A total of 295 mother-infant pairs were included in the study. Of the 94 (31.9%) smokers, 33 smoked during labour at home only and 34 during labour at the hospital. For newborns of smokers, the daily ration of cigarettes smoked by the mother during pregnancy and the number smoked during labour explained respectively 10.4% and 10.8% of the residual variance of carboxyhaemoglobin in cord blood. Smoking during labour significantly increases carboxyhaemoglobin levels. It should be prohibited in hospitals.

Blood Specimen Collection↗

PubMedDate not supplied

[Association between maternal smoking and breast feeding].

Many factors influence the decision to initiate and continue to breastfeed. Our study evaluates the relation between maternal cigarette smoking and prevalence of breastfeeding. A telephone questionnaire was administered by nurses to mothers of 879 newborns from the Quebec City area approximately two weeks after delivery. Among the 666 babies whose mothers did not smoke, 62.6% were breastfed. This proportion declined to 37.5%, 17.7% and 14.6% among babies whose mothers smoked 1 to 10, 11 to 20 and more than 20 cigarettes per day, respectively. The dose-effect association between the prevalence of breastfeeding and the number of cigarettes smoked daily by the mother persisted after adjustment in a binomial regression model for maternal age, education and home district area. Pregnant women who smoke should be strongly encouraged to quit smoking and to breastfeed their babies.

Breast Feeding↗

PubMedDate not supplied

Factors associated with the obtaining of a second-trimester induced abortion.

This study investigated the factors associated with the obtaining of a second-trimester induced abortion in women consulting the Family Planning Clinic of Le Centre Hospitalier de l'Université Laval in Quebec City, between September 6, 1988 and May 11, 1990. During the study period, 2,771 women obtained abortions at between six and 16 weeks of gestation in a multidisciplinary setting. Of 18 independent variables entered in a stepwise multiple regression analysis, ten made independent contributions to explain the variance at least at the p < 0.05 level of statistical significance. Taken together, these ten variables explained 9.4% of the total variance in gestational age: being young; having a low level of education; living far from the clinic; having other children; having a sexually transmitted disease before the abortion; not using contraception or using oral contraceptives at the time of conception, or being sterilized or having a sexual partner who has had a vasectomy; having had few sexual partners in the year preceding the abortion; not having a significant relationship with a regular sexual partner; being ambivalent about the decision to abort; and having a delay between the first consultation with the clinic and the abortion.

Abortion, Induced↗

PubMedDate not supplied

[Pregnant women's knowledge of prematurity in Quebec].

The objective of this study was to determine pregnant women's knowledge level concerning premature birth. During July of 1990, 465 pregnant women completed a questionnaire evaluating their knowledge of the following dimensions of premature birth: risk factors, symptoms, epidemiology, prevention and self-assessment of risk. The subjects were all francophones, at 16 weeks of less of pregnancy, with characteristics comparable to all pregnant women in Quebec. The study participants considered premature birth to be a serious health problem, and over-estimated the premature birth rate. Fifty-seven percent thought that the rate was 17% or greater. Eighty percent associated premature birth with some morbidity and mortality risks. On the other hand, the risk factors concerning premature birth were poorly known; approximately 50% of the women did not recognize twin pregnancy and a past history of premature delivery as risk factors. Moreover, a third of the women did not recognize the signs and symptoms of premature rupture of membranes and of premature labor. In conclusion, a high proportion of pregnant women in Quebec do not have even minimally adequate knowledge levels concerning the prevention or risks of premature birth.

Adult↗