@article{AzcorraDickinsonMendezDominguezetal.2022, author = {Azcorra, Hugo and Dickinson, Federico and Mendez-Dominguez, Nina and Mumm, Rebekka and Valent{\´i}n, Graciela}, title = {Development of birthweight and length for gestational age and sex references in Yucatan, Mexico}, series = {American journal of human biology : the official journal of the Human Biology Council}, volume = {34}, journal = {American journal of human biology : the official journal of the Human Biology Council}, number = {6}, publisher = {Wiley}, address = {Hoboken}, issn = {1042-0533}, doi = {10.1002/ajhb.23732}, pages = {13}, year = {2022}, abstract = {Objective To develop sex- and gestational age specific reference percentiles and curves for birth weight and length for Yucatec neonates using data from birth registers of infants born during 2015-2019. Material and methods Observational, descriptive, epidemiologic study in a 5-year period including every registered birth in the state of Yucatan, Mexico using birth registries. A total of 158 432 live, physically healthy singletons (76 442 females and 81 990 males) between 25 and 42 weeks of gestation were included in the analysis. We used the LMS method to construct smoothed reference centiles (3rd, 10th, 25th, 50th, 75th, 95th, and 97th) and curves for males and females separately. Results Mean maternal age was 26 (SD = 6.22) years. Fifty-two percent of births occurred by vaginal delivery, 37\% were firstborn and similar proportions were second (33\%) and third or more (30\%) born. 5.5\% of newborns included in the references corresponds to neonates born before 37 weeks of gestation (5.9\% boys and 5.1\% girls). In both sexes, the percentage of infants with a birthweight less than 2500 g was 6.7\%. The birthweight at the 50th percentile for males and females at 40 weeks of gestation in this cohort was 3256 and 3167 g, respectively, and the corresponding values for birth length were 50.23 and 49.84 cm (mean differences between sexes: 89 g and 0.40 cm, respectively). Conclusion The reference percentile and curves developed in this study are useful for research purposes and can help health practitioners to assess the biological status of infants born in Yucatan.}, language = {en} } @article{CzernitzkiPospisilMusaleketal.2017, author = {Czernitzki, Anna-Franziska and Pospisil, Christina and Musalek, Martin and Mumm, Rebekka and Scheffler, Christiane}, title = {Analysis of longitudinal data of height z-scores in kindergarten children}, series = {Journal of biological and clinical anthropology : Anthropologischer Anzeiger ; Mitteilungsorgan der Gesellschaft f{\"u}r Anthropologie}, volume = {74}, journal = {Journal of biological and clinical anthropology : Anthropologischer Anzeiger ; Mitteilungsorgan der Gesellschaft f{\"u}r Anthropologie}, number = {2}, publisher = {Schweizerbart science publishers}, address = {Stuttgart}, issn = {0003-5548}, doi = {10.1127/anthranz/2017/0708}, pages = {109 -- 112}, year = {2017}, abstract = {Changes in body height throughout extended historic periods are very complex and dynamic processes. Thispilot study aimed to investigate the pattern of longitudinal height z-scores changes in children before and after entering kindergarten. In summer 2016, we measured height and weight of 32 children from 4 groups of two kindergartens aged 3-6 years. All ages were centered according to the age of entry into the kindergarten. For each child we determined mean z-scores for height before and after entering the kindergarten, and assessed the variances for each kindergarten group. Twenty-two children targeted in height z-scores towards average height of their respective kindergarten group, 10 children did not. Due to the small numbers, the convergence in height variance however, remained insignificant (chi-squared independence test, p = 0.127). Additional studies with larger sample sizes are needed to confirm this pilot study.}, language = {en} } @misc{HermanussenIpsenMummetal.2016, author = {Hermanussen, Michael and Ipsen, Josefin and Mumm, Rebekka and Assmann, Christian and Quitmann, Julia and Gomula, Aleksandra and Lehmann, Andreas and Jasch, Isabelle and Tassenaar, Vincent and Bogin, Barry and Satake, Takashi and Scheffler, Christiane and Nunez, Javier and Godina, Elena and Hardeland, Ruediger and Boldsen, Jesper L. and El-Shabrawi, Mortada and Elhusseini, Mona and Barbu, Carmen Gabriela and Pop, Ralucca and Soederhaell, Jani and Merker, Andrea and Swanson, James and Groth, Detlef}, title = {Stunted Growth. Proceedings of the 23rd Aschauer Soiree, Held at Aschauhof, Germany, November 7th 2015}, series = {Pediatric Endocrinology Reviews}, volume = {13}, journal = {Pediatric Endocrinology Reviews}, publisher = {Medical Media}, address = {Netanya}, issn = {1565-4753}, pages = {756 -- 767}, year = {2016}, abstract = {Twenty-four scientists met at Aschauhof, Altenhof, Germany, to discuss the associations between child growth and development, and nutrition, health, environment and psychology. Meta-analyses of body height, height variability and household inequality, in historic and modern growth studies published since 1794, highlighting the enormously flexible patterns of child and adolescent height and weight increments throughout history which do not only depend on genetics, prenatal development, nutrition, health, and economic circumstances, but reflect social interactions. A Quality of Life in Short Stature Youth Questionnaire was presented to cross-culturally assess health-related quality of life in children. Changes of child body proportions in recent history, the relation between height and longevity in historic Dutch samples and also measures of body height in skeletal remains belonged to the topics of this meeting. Bayesian approaches and Monte Carlo simulations offer new statistical tools for the study of human growth.}, language = {en} } @article{HermanussenMummRintischetal.2019, author = {Hermanussen, Michael and Mumm, Rebekka and Rintisch, Aileen and Tutkuviene, Janina and Suchomlinov, Andrej and Joubert, K{\´a}lm{\´a}n and Ferrandez Longas, Angel and Scheffler, Christiane}, title = {Height SDS changes (Delta hSDS) in healthy children from birth to 18 years, with correction factors for measurement intervals of less than one year}, series = {Pediatric Endocrinology Reviews}, volume = {16}, journal = {Pediatric Endocrinology Reviews}, number = {4}, publisher = {Medical Media}, address = {Netanya}, issn = {1565-4753}, doi = {10.17458/per.vol16.2019.hmr.heightsdschanges}, pages = {457 -- 467}, year = {2019}, abstract = {Background: Growth is volatile and non-linear. Assessing the instantaneous speed of growth (momentary height velocity) depends on the precision and the number of measurements and the duration of the observation period. Measurements at short intervals reflect both the non-linearity of growth and the technical error of measurements (TEM). Material: We reanalyzed longitudinal measurements of body length at age 0, 3 months, 6 months, 9 months, 12 months, 18 months, and 24 months, from 1879 healthy infants (956 girls, 923 boys) from France (180 girls, 173 boys), Vilnius, Lithuania (507 girls, 507 boys), Lublin, Poland (67 girls, 56 boys), Zurich, Switzerland (94 girls, 102 boys) and Spain (108 girls, 95 boys); and longitudinal measurements of annual body height from age 2 to 18 years from 1528 healthy children and adolescents (774 girls, 754 boys) from France (41 girls, 47 boys), Vilnius, Lithuania (23 girls, 27 boys), Lublin, Poland (70 girls, 58 boys), Zurich, Switzerland (111 girls, 120 boys), Spain (94 girls, 74 boys), the Czech Republic (65 girls, 69 boys), Hungary (316 girls, 320 boys), and Berkeley, USA (54 girls, 39 boys). Results: We calculated age- and sex-specific mean values for height and SD for height separately for each country. In addition, we defined the instantaneous speed of growth by the dhSDS(t) difference of two measures of hSDS (v(hSDS(t)) = Delta hSDS(t)/t), or in the case of multiple measurements, by the slope of the linear regression (BhSDS((t))). Based on the longitudinal measurements of body length, we present reference values for annual growth velocity given in the form of SD of annual hSDS changes (Delta hSDS), from birth to maturity. Correction factors are added for validating measurements obtained at intervals of less than one year. The correction factors depend on number of measurements, and duration of the observation period.}, language = {en} } @article{HermanussenPulunganScheffleretal.2019, author = {Hermanussen, Michael and Pulungan, Aman B. and Scheffler, Christiane and Mumm, Rebekka and Rogol, Alan D. and Pop, Raluca and Swanson, James M. and Sonuga-Barke, Edmund and Reimann, Anna and Siniarska-Wolanska, Anna and Musalek, Martin and Bogin, Barry and Boldsen, Jesper L. and Tassenaar, (Vincent) and Groth, Detlef and Liu, Yuk-Chien and Meigen, Christof and Quanjer, Bjorn and Thompson, Kristina and Ozer, Baak Koca and Bryl, Ewa and Mamrot, Paula and Hanc, Tomasz and Koziel, Slawomir and Soderhall, Jani and Gomula, Aleksandra and Banik, Sudip Datta and Roelants, Mathieu and Veldre, Gudrun and Lieberman, Leslie Sue and Sievert, Lynnette Leidy}, title = {Meeting Reports}, series = {Pediatric Endocrinology Reviews}, volume = {16}, journal = {Pediatric Endocrinology Reviews}, number = {3}, publisher = {Medical Media}, address = {Netanya}, issn = {1565-4753}, doi = {10.17458/per.vol16.2019.hps.mr.26achauersoiree}, pages = {383 -- 400}, year = {2019}, abstract = {Thirty-one scientists met at Aschauhof, Germany to discuss the role of beliefs and self-perception on body size. In view of apparent growth stimulatory effects of dominance within the social group that is observed in social mammals, they discussed various aspects of competitive growth strategies and growth adjustments. Presentations included new data from Indonesia, a cohort-based prospective study from Merida, Yucatan, and evidence from recent meta-analyses and patterns of growth in the socially deprived. The effects of stress experienced during pregnancy and adverse childhood events were discussed, as well as obesity in school children, with emphasis on problems when using z-scores in extremely obese children. Aspects were presented on body image in African-American women, and body perception and the disappointments of menopause in view of feelings of attractiveness in different populations. Secular trends in height were presented, including short views on so called 'racial types' vs bio-plasticity, and historic data on early-life nutritional status and later-life socioeconomic outcomes during the Dutch potato famine. New tools for describing body proportions in patients with variable degrees of phocomelia were presented along with electronic growth charts. Bio-statisticians discussed the influence of randomness, community and network structures, and presented novel tools and methods for analyzing social network data.}, language = {en} } @article{KozielSchefflerTutkuvieneetal.2018, author = {Koziel, Slawomir and Scheffler, Christiane and Tutkuviene, Janina and Jakimaviciene, Egle Marija and Mumm, Rebekka and Barbieri, Davide and Godina, Elena and El-Shabrawi, Mortada and Elhusseini, Mona and Musalek, Martin and Pruszkowska-Przybylska, Paulina and El Dash, Hanaa H. and Safar, Hebatalla Hassan and Lehmann, Andreas and Swanson, James and Bogin, Barry and Liu, Yuk-Chien and Groth, Detlef and Kirchengast, Sylvia and Siniarska, Anna and Nieczuja-Dwojacka, Joanna and Kralik, Miroslav and Satake, Takashi and Harc, Tomasz and Roelants, Mathieu and Hermanussen, Michael}, title = {Meeting Report: Growth and social environment}, series = {Pediatric Endocrinology Reviews}, volume = {15}, journal = {Pediatric Endocrinology Reviews}, number = {4}, publisher = {Medical Media}, address = {Netanya}, issn = {1565-4753}, doi = {10.17458/per.vol15.2018.ksh.mr.GrowthSocialEnvironment}, pages = {319 -- 329}, year = {2018}, abstract = {Twenty-two scientists met at Krobielowice, Poland, to discuss the impact of the social environment, spatial proximity, migration, poverty, but also psychological factors such as body perception and satisfaction, and social stressors such as elite sports, and teenage pregnancies, on child and adolescent growth. The data analysis included linear mixed effects models with different random effects, Monte Carlo analyses, and network simulations. The work stressed the importance of the peer group, but also included historic material, some considerations about body proportions, and growth in chronic liver, and congenital heart disease.}, language = {en} } @phdthesis{Mumm, author = {Mumm, Rebekka}, title = {Eat and you should grow}, school = {Universit{\"a}t Potsdam}, pages = {84}, language = {en} } @article{MummCzernitzkiBentsetal.2017, author = {Mumm, Rebekka and Czernitzki, Anna-Franziska and Bents, Dominik and Musalek, Martin}, title = {Socioeconomic situation and growth in infants and juveniles}, series = {Anthropologischer Anzeiger : journal of biological and clinical anthropology ; Mitteilungsorgan der Gesellschaft f{\"u}r Anthropologie}, volume = {74}, journal = {Anthropologischer Anzeiger : journal of biological and clinical anthropology ; Mitteilungsorgan der Gesellschaft f{\"u}r Anthropologie}, publisher = {Schweizerbart}, address = {Stuttgart}, issn = {0003-5548}, doi = {10.1127/anthranz/2017/0706}, pages = {101 -- 107}, year = {2017}, abstract = {Background: Physical growth of children and adolescents depends on the interaction of genetic and environmental factors e.g. diet and living conditions. Aim: We aim to discuss the influence of socioeconomic situation, using income inequality and GDP per capita as indicators, on body height, body weight and the variability of height and weight in infants and juveniles. Material and methods: We re-analyzed data from 439 growth studies on height and weight published during the last 35 years. We added year-and country-matched GDP per capita (in current US\$) and the Gini coefficient for each study. The data were divided into two age groups: infants (age 2) and juveniles (age 7). We used Pearson correlation and principal component analysis to investigate the data. Results: Gini coefficient negatively correlated with body height and body weight in infants and juveniles. GDP per capita showed a positive correlation with height and weight in both age groups. In infants the standard deviation of height increases with increasing Gini coefficient. The opposite is true for juveniles. A correlation of weight variability and socioeconomic indicators is absent in infants. In juveniles the variability of weight increases with declining Gini coefficient and increasing logGDP per capita. Discussion: Poverty and income inequality are generally associated with poor growth in height and weight. The analysis of the within-population height and weight variations however, shows that the associations between wealth, income, and anthropometric parameters are very complex and cannot be explained by common wisdom. They point towards an independent regulation of height and weight.}, language = {en} } @article{MummGodinaKozieletal.2018, author = {Mumm, Rebekka and Godina, Elena and Koziel, Slawomir and Musalek, Martin and Sedlak, Petr and Wittwer-Backofen, Ursula and Hess, Volker and Dasgupta, Parasmani and Henneberg, Maciej and Scheffler, Christiane}, title = {External skeletal robusticity of children and adolescents}, series = {Journal of biological and clinical anthropology}, volume = {74}, journal = {Journal of biological and clinical anthropology}, number = {5}, publisher = {Schweizerbart}, address = {Stuttgart}, issn = {0003-5548}, doi = {10.1127/anthranz/2018/0826}, pages = {383 -- 391}, year = {2018}, abstract = {Background: In our modern world, the way of life in nutritional and activity behaviour has changed. As a consequence, parallel trends of an epidemic of overweight and a decline in external skeletal robusticity are observed in children and adolescents. Aim: We aim to develop reference centiles for external skeletal robusticity of European girls and boys aged 0 to 18 years using the Frame Index as an indicator and identify population specific age-related patterns. Methods: We analysed cross-sectional \& longitudinal data on body height and elbow breadth of boys and girls from Europe (0-18 years, n = 41.679), India (7-18 years, n = 3.297) and South Africa (3-18 years, n = 4.346). As an indicator of external skeletal robusticity Frame Index after Frisancho (1990) was used. We developed centiles for boys and girls using the LMS-method and its extension. Results: Boys have greater external skeletal robusticity than girls. Whereas in girls Frame Index decreases continuously during growth, an increase of Frame Index from 12 to 16 years in European boys can be observed. Indian and South African boys are almost similar in Frame Index to European boys. In girls, the pattern is slightly different. Whereas South African girls are similar to European girls, Indian girls show a lesser external skeletal robusticity. Conclusion: Accurate references for external skeletal robusticity are needed to evaluate if skeletal development is adequate per age. They should be used to monitor effects of changes in way of life and physical activity levels in children and adolescents to avoid negative health outcomes like osteoporosis and arthrosis.}, language = {en} } @article{MummHermanussen2022, author = {Mumm, Rebekka and Hermanussen, Michael}, title = {The dilemma of misclassifying weight in short and in historic population}, series = {Human biology and public health}, volume = {2021}, journal = {Human biology and public health}, number = {3, Summer School Supplement}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {2748-9957}, doi = {10.52905/hbph2021.3.28}, pages = {7}, year = {2022}, abstract = {Background: Clinicians often refer anthropometric measures of a child to so-called "growth standards" and "growth references. Over 140 countries have meanwhile adopted WHO growth standards. Objectives: The present study was conducted to thoroughly examine the idea of growth standards as a common yardstick for all populations. Weight depends on height. We became interested in whether also weight-for-height depends on height. First, we studied the age-group effect on weight-for-height. Thereafter, we tested the applicability of weight-for-height references in short and in historic populations. Sample and Methods: We analyzed body height and body weight and weight-for-height of 3795 healthy boys and 3726 healthy girls aged 2 to 5 years measured in East-Germany between 1986 and 1990. We chose contemporary height and weight charts from Germany, the UK, and the WHO growth chart and compared these with three geographically commensurable growth charts from the end of the 19th century. Results: We analyzed body height and body weight and weight-for-height of 3795 healthy boys and 3726 healthy girls aged 2 to 5 years measured in East-Germany between 1986 and 1990. We chose contemporary height and weight charts from Germany, the UK, and the WHO growth chart and compared these with three geographically commensurable growth charts of the end of the 19th century. Conclusion: Weight-for-height depends on age and sex and apart from the nutritional state, reflects body proportion and body built particularly during infancy and early childhood. Populations with a relatively short average height are prone to high values of weight-for-height for arithmetic reasons independent of the nutritional state.}, language = {en} }