Waist circumference and waist-to-height ratio distributions in polish and german schoolchildren: Comparative analysis

Background: To analyze differences in the distributions of waist circumference (WC) and waist-to-height ratio (WHtR) between Polish (PL) and German (GE) children and adolescents. Methods: Two samples of children and adolescents aged 7-18 y: From PL ( n = 11,326) GE ( n = 8,218) participated. The tw...

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Main Authors: Tadeusz Nawarycz, Gerda-Maria Haas, Alicja Krzyzaniak, Peter Schwandt, Lidia Ostrowska-Nawarycz
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2013-01-01
Series:International Journal of Preventive Medicine
Subjects:
Online Access:http://www.ijpvmjournal.net/article.asp?issn=2008-7802;year=2013;volume=4;issue=7;spage=786;epage=796;aulast=Nawarycz
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author Tadeusz Nawarycz
Gerda-Maria Haas
Alicja Krzyzaniak
Peter Schwandt
Lidia Ostrowska-Nawarycz
author_facet Tadeusz Nawarycz
Gerda-Maria Haas
Alicja Krzyzaniak
Peter Schwandt
Lidia Ostrowska-Nawarycz
author_sort Tadeusz Nawarycz
collection DOAJ
description Background: To analyze differences in the distributions of waist circumference (WC) and waist-to-height ratio (WHtR) between Polish (PL) and German (GE) children and adolescents. Methods: Two samples of children and adolescents aged 7-18 y: From PL ( n = 11,326) GE ( n = 8,218) participated. The two WC cut-off points (WC1 as central fat distribution and WC2 as central obesity) corresponding at age 18 to the adult criteria were determined. Furthermore, the mean WC cut-off points (WC1m, WC2m) for boys and girls aged 14-18 from both countries were evaluated. For the WHtR, values over 0.5 were used as a definition of central fat distribution. The effect of different WC and WHtR criteria on the prevalence of abdominal obesity in both study groups was evaluated. Results: The mean and percentile values of WC and WHtR were generally higher in all German children as compared to their peers from Poland. When WC1m is used, the mean (95% CI) prevalence of central fat distribution in the 14-18 y Polish groups was lower ( P < 0.05) than those from Germany (boys: 4.4% (3.6-5.2) vs. 8.9% (7.3-10.5); girls: 10.7% (9.0-12.3) vs. 26.4% (23.2-29.6)), whereas, using the WHtR > 0.5, the results were similar for boys - 6.7% (5.9-7.5) vs. 8.5% (8.1-8.9); they were significantly ( P < 0.05) lower for Polish and German girls: 5.3% (5.0-5.6) vs. 12.7% (9.7-16.4). The prevalence of central obesity using WC2m as a criterion in the Polish vs. German groups was as follows: (boys - 1.1% (0.8-1.4) vs. 3.1% (2.2-4.0), P < 0.05; girls - 3.1% (2.5-3.7) vs. 10.2% (8.4-12.0), P < 0.05). Conclusions: The results highlight the greater central obesity associated with the German children, both in terms of WC and WHtR, in comparison to their peers from Poland. The prevalence of AO is significantly associated with the criteria used. The results demonstrate the need for the development of international WC references for pediatric subjects.
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spelling doaj.art-3a8b615484d043ea95e33011e47b5d792022-12-22T02:04:11ZengWolters Kluwer Medknow PublicationsInternational Journal of Preventive Medicine2008-78022008-82132013-01-0147786796Waist circumference and waist-to-height ratio distributions in polish and german schoolchildren: Comparative analysisTadeusz NawaryczGerda-Maria HaasAlicja KrzyzaniakPeter SchwandtLidia Ostrowska-NawaryczBackground: To analyze differences in the distributions of waist circumference (WC) and waist-to-height ratio (WHtR) between Polish (PL) and German (GE) children and adolescents. Methods: Two samples of children and adolescents aged 7-18 y: From PL ( n = 11,326) GE ( n = 8,218) participated. The two WC cut-off points (WC1 as central fat distribution and WC2 as central obesity) corresponding at age 18 to the adult criteria were determined. Furthermore, the mean WC cut-off points (WC1m, WC2m) for boys and girls aged 14-18 from both countries were evaluated. For the WHtR, values over 0.5 were used as a definition of central fat distribution. The effect of different WC and WHtR criteria on the prevalence of abdominal obesity in both study groups was evaluated. Results: The mean and percentile values of WC and WHtR were generally higher in all German children as compared to their peers from Poland. When WC1m is used, the mean (95% CI) prevalence of central fat distribution in the 14-18 y Polish groups was lower ( P < 0.05) than those from Germany (boys: 4.4% (3.6-5.2) vs. 8.9% (7.3-10.5); girls: 10.7% (9.0-12.3) vs. 26.4% (23.2-29.6)), whereas, using the WHtR > 0.5, the results were similar for boys - 6.7% (5.9-7.5) vs. 8.5% (8.1-8.9); they were significantly ( P < 0.05) lower for Polish and German girls: 5.3% (5.0-5.6) vs. 12.7% (9.7-16.4). The prevalence of central obesity using WC2m as a criterion in the Polish vs. German groups was as follows: (boys - 1.1% (0.8-1.4) vs. 3.1% (2.2-4.0), P < 0.05; girls - 3.1% (2.5-3.7) vs. 10.2% (8.4-12.0), P < 0.05). Conclusions: The results highlight the greater central obesity associated with the German children, both in terms of WC and WHtR, in comparison to their peers from Poland. The prevalence of AO is significantly associated with the criteria used. The results demonstrate the need for the development of international WC references for pediatric subjects.http://www.ijpvmjournal.net/article.asp?issn=2008-7802;year=2013;volume=4;issue=7;spage=786;epage=796;aulast=NawaryczAbdominal obesitychildren and adolescentswaist circumferencewaist-to-height ratio
spellingShingle Tadeusz Nawarycz
Gerda-Maria Haas
Alicja Krzyzaniak
Peter Schwandt
Lidia Ostrowska-Nawarycz
Waist circumference and waist-to-height ratio distributions in polish and german schoolchildren: Comparative analysis
International Journal of Preventive Medicine
Abdominal obesity
children and adolescents
waist circumference
waist-to-height ratio
title Waist circumference and waist-to-height ratio distributions in polish and german schoolchildren: Comparative analysis
title_full Waist circumference and waist-to-height ratio distributions in polish and german schoolchildren: Comparative analysis
title_fullStr Waist circumference and waist-to-height ratio distributions in polish and german schoolchildren: Comparative analysis
title_full_unstemmed Waist circumference and waist-to-height ratio distributions in polish and german schoolchildren: Comparative analysis
title_short Waist circumference and waist-to-height ratio distributions in polish and german schoolchildren: Comparative analysis
title_sort waist circumference and waist to height ratio distributions in polish and german schoolchildren comparative analysis
topic Abdominal obesity
children and adolescents
waist circumference
waist-to-height ratio
url http://www.ijpvmjournal.net/article.asp?issn=2008-7802;year=2013;volume=4;issue=7;spage=786;epage=796;aulast=Nawarycz
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