References NL4 | R Documentation |
Reference table from the Fourth Dutch Growth Study 1997
A data frame with seven variables:
Study Population
Subpopulation, e.g.
ethnicity or age group (for nl4.wfh
)
Sex (M,F)
Decimal age (0-21 years) or Height (for nl4.wfh
)
Lambda (skewness) curve
Median curve
Coefficient of Variation curve
The model was fitted by the LMS model. Parameters are stored as type
LMS
. Tabulated values are point ages.
Height follows a normal distribution, with all lambda parameters set equal to
1. The standard deviation (in cm) is obtained as S*M
.
The naming conventions are as follows:
Length/Height (cm) for Age
Weight (kg) for Age
Weight (kg) for Height (cm)
Head circumference (cm) for Age
Leg Length (cm) for Age
Hip circumference (cm) for Age
Waist circumference (cm) for Age
Waist/Hip ratio for Age
Sitting Height for Age
Sitting Height/Height ratio for Age
Fredriks, A.M,, van Buuren, S., Burgmeijer, R.J., Meulmeester JF, Beuker, R.J., Brugman, E., Roede, M.J., Verloove-Vanhorick, S.P., Wit, J.M. (2000) Continuing positive secular growth change in The Netherlands 1955-1997. Pediatric Research, 47, 316-323.
Fredriks, A.M., van Buuren, S., Wit, J.M., Verloove-Vanhorick, S.P. (2000). Body index measurements in 1996-7 compared with 1980. Archives of Disease in Childhood, 82, 107-112.
cdc.wgt
, who.wgt
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