Body weight in Finland
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Contents
Scope
Body weight in Finland describes body weight for the general population and subgroups in Finland.
Definition
Causality
List of parents:
Data1
Estimate is a point estimate from ^{[1]}.
Data 2
Probability distribution of body weight of adults aged 1855yr and over 55yr were extracted from ^{[2]}. For a given age group body weight data was summarized in terms of mean and the 95% confidence interval:
 1855yr: 77.6 (77.078.1),
 55yr+: 76.5 (75.977.2).
Based on that a normal distribution was created. Since standard deviations (SDs) calculated from 2.5^{th} and 97.5^{th} percentiles were not exactly equal the larger SD was used as a standard deviation of a normal distribution.
Note: There was not measurements for ages 1829yr, only for 3055yr.
Data 3
The most comprehensive information on body weights of Finnish children are gender specific growth curves. They were previously used to extract the mean and 95% confidence interval (CI) of body weight at each age (month or year) from 0 to 18 years. See results of variables: Body weight of 024 months old Finnish children and Body weight of 218 year old Finnish children. Based on this information probability distributions of body weights of children aged 02 years and 218 years were constructed. Body weights of males and females are studied separately. It was assumed that the body weight for each 1month or 1year age specific interval follows a normal distribution with mean being the mean reported in growth tables and standard deviation (SD) being the larger value of SDs calculated from the bounds of the 95% CI. 2500 values of body weights for each 1month and 1year age interval were simulated from respective normal distributions and then grouped to match groups 02 years (months from 0 to 24) and 218 years (years from 2 to 18). Since none of parametric distributions fits the resulting data sets the empirical distribution of body weights was constructed. Moreover, based on simulated data the Spearman's rank correlation between age and body weight in different age/gender subgroups was calculated.
Unit
kg
Formula
Analytica_id:
<anacode> Table(Preg_gen)(55,70) </anacode>
Result
Data 1
General population  Pregnant mothers 

70  55 
Data 2
Adults 1855yr  Adults 55yr+  
mean of normal distribution  77.6  76.5 
SD of normal distribution  0.31  0.36 
Data 3
Results of one simulation. For each age/gender group mean value, standard deviation (sd) and five percentiles (5th, 25th, 50th , 75th and 95th) are provided.
02 years males  02 years females  218 years males  218 years females  
mean  9.4105  9.1249  31.4799  31.186 
sd  2.7969  2.8061  16.0825  15.3681 
p5  3.961  3.8875  12.5255  12.1115 
p25  7.6278  7.2345  18.2514  18.1586 
p50  9.9635  9.5678  27.642  27.286 
p75  11.4834  11.2236  41.0361  43.5152 
p95  13.2375  13.1518  63.522  59.1031 
Spearman's rank correlation per age and gender:
02 years males  02 years females  218 years males  218 years females  
Spearman's rank correlation  0.866  0.878  0.963  0.953 