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Biomedical subjects

A Wachholder

Publications and source records attributed to A Wachholder.

7 recordsLinked to original sources
PubMed1993

[Reference values of the height and weight growth and growth rate of Belgian boys and girls 3-18 years of age].

BACKGROUND: Belgian growth standards have until now been based on cross-sectional studies. This paper describes the first Belgian longitudinal growth standards for height and height velocity and recent cross-sectional standards of weight-for-age. POPULATION AND METHODS: The study was conducted between 1955 and 1975, initially on 259 Belgian boys and girls born in Brussels between 1955 and 1958. Only 48 boys and 50 girls were still being checked for height and weight at the end of the study. The distance charts show the classical centile lines; the height standards are provided with growth curves for the typical early average and late-maturing child in the population. The velocity charts show centiles for whole-year increments in height. Individual-type velocity curves are also provided. RESULTS: Comparison between these standards and those for British children shows that the Belgian children (essentially the girls) are taller than the British, probably due to more rapid maturation.

Adolescent↗
PubMed1990

Prospective study on the prevalence of sudden infant death and possible risk factors in Brussels: preliminary results (1987-1988).

A prospective study was carried out to assess the frequency of sudden infant death (SID) in the Brussels area. The study was conducted between January and December 1987 on infants presented to the health clinics of the Brussels "Office de la Naissance et de l'Enfance" (ONE). The infants entered the study if: (a) they were born between January 1 and December 31, 1987; (b) they attended an ONE consultation in the Brussels area between January 1987 and December 1988; (c) visits were repeated monthly during the first 12 months of life, or until death occurred; and (d) standard questionnaires were completed for each visit. For 4,064 infants these four criteria were fulfilled. During the study period 7 infants died of SID. Their deaths were unexpected and remained unexplained despite post-mortem investigations. For each SID case, 10 control infants were selected from the same health clinics. Controls matched the SID cases in the following respects: (a) dates of visits; (b) sex; (c) gestational age; (d) legal age; and (e) the profession of both parents. For most of the 65 items studied no significant difference was seen between the 7 SID infants and their 70 matched controls. Only two variables significantly differentiated the two groups. Repeated fatigue during feeding was seen in 4 of the 7 SID cases, but only in 10 of the 70 control infants (Fisher P = 0.017). Profuse sweating during sleep was reported in 2 of the 7 SID infants, and in none of the 70 controls (Fischer P = 0.007). These two infants' bedclothes were repeatedly wet with sweat.(ABSTRACT TRUNCATED AT 250 WORDS)

Belgium↗
PubMedDate not supplied

A comparative study of the fit of four different functions to longitudinal data of growth in height of Belgian girls.

We have fitted Preece-Baines model 1, double logistic, logistic and Gompertz functions to longitudinal data on the growth in height of 35 Belgian girls, followed from birth to 18.0 years. The Preece-Baines model 1 showed significantly lower residual mean squares than the double logistic function, when fitted to data beyond the age of 1.0 year. The former model was also most robust towards variations in the lower age bound by the subject's data series and always described the adolescent spurt better than the latter. Both models fitted the data badly when measurements before the age of 1.0 year were included, and they usually estimated the point at take-off too early. Over the adolescent cycle, only, the logistic function fitted our data slightly better than the Gompertz function, with significantly lower pooled residual mean squares, though a slightly worse performance in the runs-test.

Adolescent↗