deren: Deren prevalence data on child thinness, overweight and...
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deren

R Documentation

Deren prevalence data on child thinness, overweight and obesity

Description

Age-sex-specific prevalence rates of thinness, overweight and obesity in Ukraine children based on body mass index and IOTF, WHO and CDC cut-offs.

Usage

deren

Format

A tibble with 22 observations on the following 11 variables:

Age: postnatal age from 7 to 17 completed years
Sex: two-level factor - Boys and Girls
N: integer - group sample size
IOTF18.5: thinness prevalence based on IOTF reference and 18.5 cutoff
WHO-2: thinness prevalence based on WHO reference and -2 cutoff
CDC5: thinness prevalence based on CDC reference and 5 cutoff
IOTF25: overweight prevalence based on IOTF reference and 25 cutoff
WHO+1: overweight prevalence based on WHO reference and +1 cutoff
CDC85: overweight prevalence based on CDC reference and 85 cutoff
IOTF30: obesity prevalence based on IOTF reference and 30 cutoff
WHO+2: obesity prevalence based on WHO reference and +2 cutoff
CDC95: obesity prevalence based on CDC reference and 95 cutoff

Details

Note that the overweight prevalences are for overweight excluding obesity, i.e. the prevalence for BMI between the overweight and obesity cutoffs.

Source

The values are obtained from Table 2 of Deren et al (2020), recalculated to full accuracy. https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0244300.

References

Deren K, Wyszynska J, Nyankovskyy S, Nyankovska O, Yatsula M, Luszczki E, Sobolewski M, Mazur A. 2020. Assessment of body mass index in a pediatric population aged 7-17 from Ukraine according to various international criteria-A cross-sectional study. PLoS ONE 15.

The IOTF reference for children aged 2-18 years is: Cole TJ, Bellizzi MC, Flegal KM, Dietz WH. Establishing a standard definition for child overweight and obesity worldwide: international survey. BMJ 2000; 320: 1240-5. Available at \Sexpr[results=rd]{tools:::Rd_expr_doi("10.1136/bmj.320.7244.1240")}

The WHO reference for children aged 0-5 years is: WHO Child Growth Standards: Length/height-for-age, weight-for-age, weight-for-length, weight-for-height and body mass index-for-age: Methods and development. Geneva: World Health Organization, 2006. Available at: https://www.who.int/toolkits/child-growth-standards/standards

The WHO reference for children aged 5-19 years is: de Onis M, Onyango AW, Borghi E, Siyam A, Nishida C, Siekmann J. Development of a WHO growth reference for school-aged children and adolescents. Bulletin of the World Health Organization 2007; 85: 660-7.

The CDC reference for children aged 2-20 years is: Must A, Dallal GE, Dietz WH. Reference data for obesity: 85th and 95th percentiles of body mass index (wt/ht2) and triceps skinfold thickness. American Journal of Clinical Nutrition 1991; 53: 839-46.

Examples

## convert IOTF obesity prevalence to WHO obesity prevalence
## and compare with true WHO obesity prevalence - boys and girls age 7-17
data(deren)
  ob_convertr(age = Age, sex = Sex, from = 'IOTF 30', to = 'WHO +2',
    pfrom = IOTF30, pto = `WHO+2`, data = deren, plot = 'compare')

sitar documentation built on July 9, 2023, 6:51 p.m.