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Augdal TA, Angenete OW, Shi XQ, Säll M, Fischer JM, Nordal E, Rosendahl K. Cone beam computed tomography in the assessment of TMJ deformity in children with JIA: repeatability of a novel scoring system. BMC Oral Health 2023; 23:12. [PMID: 36627622 PMCID: PMC9830735 DOI: 10.1186/s12903-022-02701-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 12/28/2022] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND The temporomandibular joint (TMJ) is frequently involved in juvenile idiopathic arthritis (JIA). Diagnostic imaging is necessary to correctly diagnose and evaluate TMJ involvement, however, hitherto little has been published on the accuracy of the applied scoring systems and measurements. The present study aims to investigate the precision of 20 imaging features and five measurements based on cone beam computed tomography (CBCT). METHODS Imaging and clinical data from 84 participants in the Norwegian study on juvenile idiopathic arthritis, the NorJIA study, were collected. Altogether 20 imaging features and five measurements were evaluated independently by three experienced radiologists for intra- and interobserver agreement. Agreement of categorical variables was assessed by Fleiss', Cohen's simple or weighted Kappa as appropriate. Agreement of continuous variables was assessed with 95% limits of agreement as advised by Bland and Altman. RESULTS "Overall impression of TMJ deformity" showed almost perfect intraobserver agreement with a kappa coefficient of 0.81 (95% CI 0.69-0.92), and substantial interobserver agreement (Fleiss' kappa 0.70 (0.61-0.78)). Moreover, both "flattening" and "irregularities" of the eminence/fossa and condyle performed well, with intra- and interobserver agreements of 0.66-0.82 and 0.55-0.76, respectively. "Reduced condylar volume" and "continuity" of the fossa/eminence had moderate intra- and interobserver Kappa values, whereas continuity of the condyle had Kappa values above 0.55. Measurements of distances and angles had limits of agreement of more than 15% of the sample mean. CONCLUSIONS We propose a CBCT-based scoring system of nine precise imaging features suggestive of TMJ deformity in JIA. Their clinical validity must be tested.
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Affiliation(s)
- Thomas A. Augdal
- grid.412244.50000 0004 4689 5540Section of Paediatric Radiology, University Hospital of North Norway, Postboks 100, 9038 Tromsø, Norway ,grid.10919.300000000122595234Department of Clinical Medicine, Faculty of Health Sciences, UiT The Arctic University of Norway, Tromsø, Norway
| | - Oskar W. Angenete
- grid.52522.320000 0004 0627 3560Department of Radiology and Nuclear Medicine, St. Olav University Hospital, Trondheim, Norway ,grid.5947.f0000 0001 1516 2393Faculty of Medicine and Health Sciences, Institute for Circulation and Medical Imaging, Norwegian University of Science and Technology, Trondheim, Norway
| | - Xie-Qi Shi
- grid.7914.b0000 0004 1936 7443Department of Clinical Dentistry, The Faculty of Medicine, University of Bergen, Bergen, Norway ,grid.32995.340000 0000 9961 9487Department of Oral and Maxillofacial Radiology, Faculty of Odontology, University of Malmö, Malmö, Sweden
| | - Mats Säll
- grid.52522.320000 0004 0627 3560Department of Radiology and Nuclear Medicine, St. Olav University Hospital, Trondheim, Norway
| | - Johannes M. Fischer
- grid.7914.b0000 0004 1936 7443Department of Clinical Dentistry, The Faculty of Medicine, University of Bergen, Bergen, Norway
| | - Ellen Nordal
- grid.10919.300000000122595234Department of Clinical Medicine, Faculty of Health Sciences, UiT The Arctic University of Norway, Tromsø, Norway ,grid.412244.50000 0004 4689 5540Department of Paediatrics, University Hospital of North Norway, Tromsø, Norway
| | - Karen Rosendahl
- grid.412244.50000 0004 4689 5540Section of Paediatric Radiology, University Hospital of North Norway, Postboks 100, 9038 Tromsø, Norway ,grid.10919.300000000122595234Department of Clinical Medicine, Faculty of Health Sciences, UiT The Arctic University of Norway, Tromsø, Norway
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Madsen A, Almås B, Bruserud IS, Oehme NHB, Nielsen CS, Roelants M, Hundhausen T, Ljubicic ML, Bjerknes R, Mellgren G, Sagen JV, Juliusson PB, Viste K. Reference Curves for Pediatric Endocrinology: Leveraging Biomarker Z-Scores for Clinical Classifications. J Clin Endocrinol Metab 2022; 107:2004-2015. [PMID: 35299255 PMCID: PMC9202734 DOI: 10.1210/clinem/dgac155] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Indexed: 12/13/2022]
Abstract
CONTEXT Hormone reference intervals in pediatric endocrinology are traditionally partitioned by age and lack the framework for benchmarking individual blood test results as normalized z-scores and plotting sequential measurements onto a chart. Reference curve modeling is applicable to endocrine variables and represents a standardized method to account for variation with gender and age. OBJECTIVE We aimed to establish gender-specific biomarker reference curves for clinical use and benchmark associations between hormones, pubertal phenotype, and body mass index (BMI). METHODS Using cross-sectional population sample data from 2139 healthy Norwegian children and adolescents, we analyzed the pubertal status, ultrasound measures of glandular breast tissue (girls) and testicular volume (boys), BMI, and laboratory measurements of 17 clinical biomarkers modeled using the established "LMS" growth chart algorithm in R. RESULTS Reference curves for puberty hormones and pertinent biomarkers were modeled to adjust for age and gender. Z-score equivalents of biomarker levels and anthropometric measurements were compiled in a comprehensive beta coefficient matrix for each gender. Excerpted from this analysis and independently of age, BMI was positively associated with female glandular breast volume (β = 0.5, P < 0.001) and leptin (β = 0.6, P < 0.001), and inversely correlated with serum levels of sex hormone-binding globulin (SHBG) (β = -0.4, P < 0.001). Biomarker z-score profiles differed significantly between cohort subgroups stratified by puberty phenotype and BMI weight class. CONCLUSION Biomarker reference curves and corresponding z-scores provide an intuitive framework for clinical implementation in pediatric endocrinology and facilitate the application of machine learning classification and covariate precision medicine for pediatric patients.
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Affiliation(s)
- Andre Madsen
- Correspondence: André Madsen, PhD, Hormone Laboratory, Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, N-5021 Bergen, Norway.
| | - Bjørg Almås
- Hormone Laboratory, Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, Bergen, Norway
| | - Ingvild S Bruserud
- Faculty of Health, VID Specialized University, Bergen, Norway
- Department of Pediatrics, Haukeland University Hospital, Bergen, Norway
| | | | - Christopher Sivert Nielsen
- Department of Chronic Diseases and Ageing, Norwegian Institute of Public Health, Oslo, Norway
- Department of Pain Management and Research, Oslo University Hospital, Oslo, Norway
| | - Mathieu Roelants
- Environment and Health, Department of Public Health and Primary Care, KU Leuven, University of Leuven, Leuven, Belgium
| | - Thomas Hundhausen
- Department of Medical Biochemistry, Southern Norway Hospital Trust, Kristiansand, Norway
- Department of Natural Sciences, University of Agder, Kristiansand, Norway
| | - Marie Lindhardt Ljubicic
- Department of Growth and Reproduction, Rigshospitalet, University of Copenhagen, and International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen, Denmark
| | - Robert Bjerknes
- Department of Pediatrics, Haukeland University Hospital, Bergen, Norway
- Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Gunnar Mellgren
- Hormone Laboratory, Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, Bergen, Norway
- Department of Clinical Science, University of Bergen, Bergen, Norway
- Mohn Nutrition Research Laboratory, University of Bergen, Bergen, Norway
| | - Jørn V Sagen
- Hormone Laboratory, Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, Bergen, Norway
- Department of Clinical Science, University of Bergen, Bergen, Norway
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Ljubicic ML, Madsen A, Upners EN, Fischer MB, Busch AS, Frederiksen H, Johannsen TH, Juul A, Hagen CP. Longitudinal evaluation of breast tissue in healthy infants: Prevalence and relation to reproductive hormones and growth factors. Front Endocrinol (Lausanne) 2022; 13:1048660. [PMID: 36531497 PMCID: PMC9751745 DOI: 10.3389/fendo.2022.1048660] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 11/18/2022] [Indexed: 12/02/2022] Open
Abstract
INTRODUCTION Breast tissue in infancy is a rather undescribed phenomenon. We aimed to describe the prevalence and progression of palpable breast tissue in healthy boys and girls aged 0-1 years and to evaluate clinical markers, individual serum hormone concentrations as well as combined hormone profiles as determinants of the persistence of breast tissue. METHODS In total, 233 term infants (119 boys, 114 girls) were included and followed from birth until 1 year of age in The COPENHAGEN Minipuberty Study (ClinicalTrials.gov #NTC02784184). Infants were followed up to six times with a clinical examination and serum sampling. Principal component analyses (PCAs) produced combined hormone profiles. RESULTS A total of 98% of all infants aged 0-1 year exhibited breast tissue at some point. 50% still had breast tissue present at 0.5-0.6 years in girls and 0.3-0.4 years in boys ('persistent'). At one year, more girls than boys had breast tissue present (p=0.010). Most clinical and hormonal markers did not differ in infants with/without persistent breast tissue. However, in those with persistent breast tissue, estradiol (first visit, girls, p=0.034), androstenedione, corticosterone, cortisol (first visit, boys, all p<0.050), length (first visit, boys, p=0.030), and testicular volume (0.3-0.4 years, p=0.040) were higher, while IGF-I (0.3-0.4, boys, p=0.033) was lower. In boys, a combined, PCA-derived hormone profile (first visit) was able to predict the persistence of breast tissue (area under the curve=83%) better than any single marker. DISCUSSION Palpable breast tissue in infancy is common in both sexes although it persists in significantly more girls than boys at one year of age. Data supports both the early origin of breast tissue (in utero- and early postnatal) as well as a role of endogenous hormone production in later development and maintenance.
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Affiliation(s)
- Marie Lindhardt Ljubicic
- Dept. of Growth and Reproduction, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
- International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital -Rigshospitalet, Copenhagen, Denmark
- *Correspondence: Marie Lindhardt Ljubicic,
| | - Andre Madsen
- Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, Bergen, Norway
| | - Emmie N. Upners
- Dept. of Growth and Reproduction, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
- International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital -Rigshospitalet, Copenhagen, Denmark
| | - Margit Bistrup Fischer
- Dept. of Growth and Reproduction, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
- International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital -Rigshospitalet, Copenhagen, Denmark
| | - Alexander Siegfried Busch
- Dept. of Growth and Reproduction, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
- International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital -Rigshospitalet, Copenhagen, Denmark
- Department of General Pediatrics, University of Münster, Münster, Germany
| | - Hanne Frederiksen
- Dept. of Growth and Reproduction, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
- International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital -Rigshospitalet, Copenhagen, Denmark
| | - Trine Holm Johannsen
- Dept. of Growth and Reproduction, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
- International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital -Rigshospitalet, Copenhagen, Denmark
| | - Anders Juul
- Dept. of Growth and Reproduction, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
- International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital -Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Casper P. Hagen
- Dept. of Growth and Reproduction, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
- International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital -Rigshospitalet, Copenhagen, Denmark
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Pan D, Fu S, Li X, Yu T, Huang S, Zhang B, Lai X, Liu Y, Yu X, Lin C, Liu S. The concordance between ultrasonographic stage of breast and Tanner stage of breast for overweight and obese girls: a school population-based study. J Pediatr Endocrinol Metab 2021; 34:1549-1558. [PMID: 34492746 DOI: 10.1515/jpem-2021-0181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 08/20/2021] [Indexed: 11/15/2022]
Abstract
OBJECTIVES In this study, we evaluated the concordance between the ultrasonographic stage of breast (US B) and Tanner stage of breast (TS B) for overweight and obese girls based on a school population study. METHODS We conducted multistage, stratified cluster, and random-proportional sampling and ultimately included 221 girls (aged 6-10 years). RESULTS This study revealed that the concordance was poor (accuracy=0.19 (95% confidence interval: 0.14, 0.25)) between US B and TS B among the 221 participants. When our subjects were stratified by weight, we observed a weak association between US B and TS B in the thin/normal weight group (r=0.34, p=0.001) but not in the overweight (r=0.097, p=0.38) or obese groups (r=-0.19, p=0.206), and as the body mass index (BMI) z-score increased, the overestimation ratio of TS B increased. US B manifested a positive correlation with breast bud diameter (BD) (r=0.885, p<0.001), follicle-stimulating hormone (r=0.235, p=0.009), and luteinizing hormone (r=0.192, p=0.037), but this was not the case with TS B. CONCLUSIONS As the BMI z-score increased, the correlation between the two methods declined, and the overestimation ratio of TS B increased. US B is an objective and quantitative method used to evaluate breast development, and whether BD might replace US B as a routine diagnostic method to evaluate breast development in clinical practice needs to be confirmed in larger-sample studies.
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Affiliation(s)
- Dongxue Pan
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou City, Guangdong Province, P. R. China
- BoAi Hospital of Zhongshan Affiliated to Southern Medical University, Zhongshan City, Guangdong Province, P. R. China
| | - Simao Fu
- Zhongshan City People's Hospital of Sun-Yat-Sen University, Zhongshan City, Guangdong Province, P. R. China
| | - Xiaoqing Li
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, P. R. China
- Department of Clinical Epidemiology and Biostatistics, Children Health Advocacy Institute, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, P. R. China
| | - Tingting Yu
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, P. R. China
- Department of Clinical Epidemiology and Biostatistics, Children Health Advocacy Institute, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, P. R. China
| | - Sizhe Huang
- Health Care Center for Primary and Secondary Schools, Zhongshan City, Guangdong province, P. R. China
| | - Bihong Zhang
- BoAi Hospital of Zhongshan Affiliated to Southern Medical University, Zhongshan City, Guangdong Province, P. R. China
| | - Xin Lai
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou City, Guangdong Province, P. R. China
- BoAi Hospital of Zhongshan Affiliated to Southern Medical University, Zhongshan City, Guangdong Province, P. R. China
| | - Yifan Liu
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou City, Guangdong Province, P. R. China
- BoAi Hospital of Zhongshan Affiliated to Southern Medical University, Zhongshan City, Guangdong Province, P. R. China
| | - Xiaodan Yu
- Department of Developmental and Behavioral Pediatrics, Shanghai Children's Medical Center,School of Medicine, Shanghai Jiao Tong University, Shanghai, P. R. China
| | - Cuilan Lin
- BoAi Hospital of Zhongshan Affiliated to Southern Medical University, Zhongshan City, Guangdong Province, P. R. China
| | - Shijian Liu
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, P. R. China
- Department of Clinical Epidemiology and Biostatistics, Children Health Advocacy Institute, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, P. R. China
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Madsen A, Bruserud IS, Bertelsen BE, Roelants M, Oehme NHB, Viste K, Bjerknes R, Almås B, Rosendahl K, Mellgren G, Sagen JV, Juliusson PB. Hormone References for Ultrasound Breast Staging and Endocrine Profiling to Detect Female Onset of Puberty. J Clin Endocrinol Metab 2020; 105:5910099. [PMID: 32961560 PMCID: PMC7571452 DOI: 10.1210/clinem/dgaa679] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 09/18/2020] [Indexed: 11/24/2022]
Abstract
CONTEXT Application of ultrasound (US) to evaluate attainment and morphology of glandular tissue provides a new rationale for evaluating onset and progression of female puberty, but currently no hormone references complement this method. Furthermore, previous studies have not explored the predictive value of endocrine profiling to determine female puberty onset. OBJECTIVE To integrate US breast staging with hypothalamic-pituitary-gonadal hormone references and test the predictive value of an endocrine profile to determine thelarche. DESIGN SETTING AND PARTICIPANTS Cross-sectional sample of 601 healthy Norwegian girls, ages 6 to 16 years. MAIN OUTCOME MEASURES Clinical and ultrasound breast evaluations were performed for all included girls. Blood samples were analyzed by immunoassay and ultrasensitive liquid chromatography-tandem mass spectrometry (LC-MS/MS) to quantify estradiol (E2) and estrone (E1) from the subpicomolar range. RESULTS References for E2, E1, luteinizing hormone, follicle-stimulating hormone, and sex hormone-binding globulin were constructed in relation to chronological age, Tanner stages, and US breast stages. An endocrine profile index score derived from principal component analysis of these analytes was a better marker of puberty onset than age or any individual hormone, with receiver-operating characteristic area under the curve 0.91 (P < 0.001). Ultrasound detection of nonpalpable glandular tissue in 14 out of 264 (5.3%) girls with clinically prepubertal presentation was associated with significantly higher median serum levels of E2 (12.5 vs 4.9 pmol/L; P < 0.05) and a distinct endocrine profile (arbitrary units; P < 0.001). CONCLUSIONS We provide the first hormone references for use with US breast staging and demonstrate the application of endocrine profiling to improve detection of female puberty onset.
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Affiliation(s)
- Andre Madsen
- Hormone Laboratory, Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, Bergen, Norway
- Department of Clinical Science, University of Bergen, Bergen, Norway
- Correspondence and Reprint Requests: André Madsen, PhD, Hormone Laboratory, Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, N-5021 Bergen, Norway. E-mail:
| | - Ingvild S Bruserud
- Department of Clinical Science, University of Bergen, Bergen, Norway
- Department of Pediatrics, Haukeland University Hospital, Bergen, Norway
| | - Bjørn-Erik Bertelsen
- Hormone Laboratory, Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, Bergen, Norway
| | - Mathieu Roelants
- Environment and Health, Department of Public Health and Primary Care, KU Leuven, University of Leuven, Leuven, Belgium
| | - Ninnie Helen Bakken Oehme
- Department of Clinical Science, University of Bergen, Bergen, Norway
- Department of Pediatrics, Haukeland University Hospital, Bergen, Norway
| | - Kristin Viste
- Hormone Laboratory, Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, Bergen, Norway
| | - Robert Bjerknes
- Department of Clinical Science, University of Bergen, Bergen, Norway
- Department of Pediatrics, Haukeland University Hospital, Bergen, Norway
| | - Bjørg Almås
- Hormone Laboratory, Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, Bergen, Norway
| | - Karen Rosendahl
- Department of Radiology, University Hospital of North Norway, Tromsø, Norway
- Department of Clinical Medicine, University of Tromsø, The Arctic University of Norway, Tromsø, Norway
| | - Gunnar Mellgren
- Hormone Laboratory, Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, Bergen, Norway
- Department of Clinical Science, University of Bergen, Bergen, Norway
- Mohn Nutrition Research Laboratory, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Jørn V Sagen
- Hormone Laboratory, Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, Bergen, Norway
- Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Petur B Juliusson
- Department of Clinical Science, University of Bergen, Bergen, Norway
- Department of Pediatrics, Haukeland University Hospital, Bergen, Norway
- Department of Health Registries, Norwegian Institute of Public Health, Bergen, Norway
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Bruserud IS, Roelants M, Oehme NHB, Madsen A, Eide GE, Bjerknes R, Rosendahl K, Juliusson PB. References for Ultrasound Staging of Breast Maturation, Tanner Breast Staging, Pubic Hair, and Menarche in Norwegian Girls. J Clin Endocrinol Metab 2020; 105:5788212. [PMID: 32140730 PMCID: PMC7275631 DOI: 10.1210/clinem/dgaa107] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 03/02/2020] [Indexed: 12/04/2022]
Abstract
CONTEXT Discriminating adipose and glandular tissue is challenging when clinically assessing breast development. Ultrasound facilitates staging of pubertal breast maturation (US B), but has not been systematically compared to Tanner breast (Tanner B) staging, and no normative data have been reported. OBJECTIVE To present normative references for US B along with references for Tanner B, pubic hair (PH), and menarche. DESIGN, SETTING, AND PARTICIPANTS A cross-sectional sample of 703 healthy girls aged 6 to 16 years were examined. MAIN OUTCOME MEASURES Breast development was determined with US B and Tanner B staging. Tanner PH and menarcheal status were recorded. The age distributions of entry in US B, Tanner B, and PH stages and menarche were estimated with generalized linear and generalized additive models with a probit link. Method agreement was tested with weighted Cohen's kappa. RESULTS The median (±2SD) ages for thelarche, US B2 and Tanner B2, were 10.2 (7.7, 12.8) and 10.4 (8.0, 12.7) years. The median (±2SD) ages at Tanner PH2 and menarche were 10.9 (8.5, 13.3) and 12.7 (11.0, 16.2) years. Cohen's kappa of agreement (95% confidence interval) between US B and Tanner B was 0.87 (0.85-0.88). When the methods disagreed, US B was usually more advanced. CONCLUSION Thelarche occurred at a slightly younger age when assessed with ultrasound compared to clinical Tanner staging, although the 2 methods had a very good agreement when determining pubertal breast maturation. A significant decrease of 2.8 months in age at menarche was observed during the past decade in Norwegian girls.
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Affiliation(s)
- Ingvild Særvold Bruserud
- Department of Clinical Science, University of Bergen, Bergen, Norway
- Department of Paediatrics, Haukeland University Hospital, Bergen, Norway
- Correspondence and Reprint Requests: Ingvild Særvold Bruserud, Department of Clinical Science, University of Bergen, Haukelandsbakken 15, 5021 Bergen, Norway. E-mail:
| | - Mathieu Roelants
- Environment and Health, Department of Public Health and Primary Care, KU Leuven–University of Leuven, Leuven, Belgium
| | - Ninnie Helén Bakken Oehme
- Department of Clinical Science, University of Bergen, Bergen, Norway
- Department of Paediatrics, Haukeland University Hospital, Bergen, Norway
| | - Andre Madsen
- Department of Clinical Science, University of Bergen, Bergen, Norway
- Hormone Laboratory, Haukeland University Hospital, Bergen, Norway
| | - Geir Egil Eide
- Centre for Clinical Research, Haukeland University Hospital, Bergen, Norway
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
| | - Robert Bjerknes
- Department of Clinical Science, University of Bergen, Bergen, Norway
- Department of Paediatrics, Haukeland University Hospital, Bergen, Norway
| | - Karen Rosendahl
- Department of Radiology, University Hospital of North Norway, Tromsø, Norway
- Department of Clinical Medicine, University in Tromsø, The Artic University of Norway, Norway
| | - Petur B Juliusson
- Department of Clinical Science, University of Bergen, Bergen, Norway
- Department of Paediatrics, Haukeland University Hospital, Bergen, Norway
- Department of Health Registries, Norwegian institute of Public Health, Bergen, Norway
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