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Biomedical subjects

M Drolette

Publications and source records attributed to M Drolette.

7 recordsLinked to original sources
PubMed1980

Twin pairs, smoking in pregnancy and perinatal mortality.

Twins born in the province of Quebec during the first six months of 1972 were ascertained by reviewing all live births and perinatal death certificates. A total of 852 twins, constituting 426 pairs, were included in the study. Smoking habits of the mother during pregnancy were recorded at the hospital of birth for 88.5% of the pairs. The risk of at least one perinatal death was significantly higher for twin pairs born to smoking mothers. The Mantel-Haenszel test statistic controlling for sex of pairs, parity (0,1+), maternal age (< 25,25+ years) and years of schooling was 4.224 (p = 0.04). The standardized risk ratio for smoking versus nonsmoking mothers that a pair will have at least one death was 1.77 (95% confidence limits: 1.03-3.04). As expected, the relative risk of perinatal death associated with smoking appears to be higher for twins than for singletons.

Adult↗
PubMed1979

A longitudinal study of multiple approaches to dental health education.

An evaluation was made of the separate effects on oral hygiene of token reward treatments, discovery (project) learning, and plaque staining feedback demonstrations with children in the first through fifth grades. Both short- and long-term effects were assessed in an open classroom setting. Twenty classrooms were non-randomly assigned to treatment and control groups. Plaque scores were recorded according to the Podshadley Patient Hygiene Performance Index (PHP) at time T0, before initiation of any of the educational interventions; and again at times T1, T2, and T3; 7 days, 74 days and 255 days, respectively, following cessation of the educational interventions. The combination of dental health interventions at this school had short-range effects at every grade level, and those effects persisted for 9 months among the third and fourth graders. It was not possible to identify which of the various treatments produced the observed differences, although the project learning method was generally less effective. A linear regression analysis was used to evaluate the shifts in oral hygiene behavior, a method not previously used in studies of this type.

Child↗