[An esthetic appreciation test of the faces of patients treated with a combination of orthodontics and maxillofacial surgery].
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Adult↗
Biomedical subjects
B Laumon
Publications and source records attributed to B Laumon.
[Behavior of men and women with respect to procreation].
A specific survey was carried out on a sample of men and women of childbearing age to study their attitudes towards parenthood and to analyse psycho-social aspects which may have an effect thereon. The analysis took into account; the children number, woman's age, socio-economic status and occupational activity. Whatever the factor studied, it was constantly observed that the demand for an additional child (in particular the third child) was expressed more often by men than by women.
Adult↗
[Risk factors of prematurity related life style. Apropos of INSERM surveys in the Rhone-Alpes area].
Based on INSERM epidemiological surveys, the authors study the risk of prematurity related to the maternal way of life. The prematurity rate is higher in women younger than 20 years, in women of foreign overseas origin, in unmarried women living in couple or alone, and in women of low socio-economic classes. Work during pregnancy is not in itself a risk factor as women at home present a higher prematurity rate than women at work. However, the strenuous working conditions, which concern about 20% of pregnant women at work, lead to a higher prematurity rate. Other factors such as smoking, alcohol consumption, travelling and housework are studied. The role of psychological modifications linked to pregnancy is discussed, particularly in women who do not present any medical factor. From these data, suggestions are made in order to improve prematurity prevention.
Female↗
[Skeletal pathology and Angle Class II division 1 malocclusion. A study of 300 patients].
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Adolescent↗
[Variations in birth weight as a function of various fetal and maternal characteristics. The application to the diagnosis of hypotrophy].
The known variations in weight for gestational age as well as compounding maternal and/or fetal factors, puts into question the usual definition of small for gestational age (SGA) which is based on gestational age alone. On the basis of more than 20,000 births studied in 4 maternity hospitals from 3 separate regions in France, the authors propose a new definition for growth retardation in full-term babies, taking into account 4 factors: gestational age, sex, birth rank, height and usual weight of mothers. This definition allows constitutionally SGA newborns to be considered normal, while some babies previously classified as normal would now lead one to suspect intra-uterine growth retardation (IUGR). This approach tries to take constitutional and environmental risk factors into account in fetal growth hopefully allowing for help better detection of IUGR.
Adult↗
Prematurity and occupational activity during pregnancy.
The aim of this study was to determine the elements of fatigue in occupations which constitute possible risk factors for the course of a pregnancy, and, in particular, that could cause premature birth. In 1977-1978, a total of 3437 women in France were surveyed after giving birth in two maternity hospitals. One hospital was located in Lyon (a large city) and the other in Haguenau (a small town). Among 1928 working women, it was found that certain occupational categories are more prone to risk of prematurity than others. The authors carried out an analytical breakdown of the job into its diverse components which led them to define five sources of fatigue and to construct an index capable of detecting the strenuous working conditions. There is a significant relationship between the prematurity rate and the number of high fatigue scores observed in the job. When the number of scores varies from 0 to 5 the rate of premature births increases from 2.3% to 11.1%. This relationship remains significant after controlling for confounding factors.
Adult↗
[Weight, height, skull and chest circumferences, biparietal diameter in the newborn infant as a function of gestational age, weight, height and weight gain of the mother].
The weights, heights, skull and chest circumferences and biparietal diameters were measured in 7,905 newborns in 1972, in the 5 maternity hospitals of Lyon. These data were studied with respect to the gestational ages of the children and according to the usual weights, heights and weight gains of the mothers. The evolution of these parameters was compared to each other; tentative explanations are given.
Adult↗
Exposure to organic solvents during pregnancy and oral clefts: a case-control study.
Prior studies on the relationship between maternal exposure to organic solvents in relation to oral clefts have been inconsistent. We re-examined this relationship in a case-control study conducted in the Rhône-Alpes region of France during the years 1985 to 1989. For each case, we selected two controls without congenital anomalies in the same delivery unit born during the same month. We interviewed each mother within the first five days after delivery about previous reproductive history and exposures during the first two months after conception. If the mother had an occupational activity at that time, we asked her occupational physician to confirm the exposures. We compared maternal exposure to any organic solvent between 200 infants with cleft lip and/or cleft palate and 400 controls and the estimated odds ratio was 1.62 (95% CI 1.04-2.52). Then we compared exposures to nine subgroups of solvents. Only the ratio associated with halogenated aliphatic solvents (4.40, 95% CI 1.41-16.15) was significantly different from unity. Control of potential confounders-sex of child, family history, maternal epilepsy-did not alter this odds ratio estimate.
Analysis of Variance↗
[New limitations on birth weight for the diagnosis of intrauterine growth retardation].
It is quite strange that hypotrophism is evaluated from old growth curves, established in a distant country, at relatively high altitudes. From 20,000 cases of births in three regions of France, center, north and south, the authors establish the new mean from which they draw interesting conclusions.
Birth Weight↗
[Maternal and perinatal antecedents of encephalopathies: their contribution to a trial classification of encephalopathies of unknown origin].
We had a sample of 135 mentally retarded children, whose case history (maternal, obstetrical and perinatal) was known before their mental retardation was suspected. This analysis made it possible to pinpoint characteristic anamnesic giving rise to mental retardation by comparison with a check population. It appears that these factors differ according to the supposed origin of mental retardation (genetic, embryonic, foetal, perinatal and postnatal periods) therefore, they can be considered "explicative" of these origins. A multivariate analysis of these factors indicates that the majority of cases of mental retardation with unknown origin are due to disorders during foetal life, which had not been detected.
Child, Preschool↗