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Tsinopoulou VR, Stamati A, Sotiriou G, Sakellari EΙ, Dimitriadou M, Galli-Tsinopoulou A, Christoforidis A. Puberty in boys with type 1 diabetes mellitus: What has changed? Diabetes Res Clin Pract 2023; 203:110837. [PMID: 37478976 DOI: 10.1016/j.diabres.2023.110837] [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: 06/03/2023] [Revised: 07/12/2023] [Accepted: 07/17/2023] [Indexed: 07/23/2023]
Abstract
AIMS To study the age of pubertal onset and secular trend in boys with Type 1 diabetes mellitus (T1DM) followed in two centers in North Greece. METHODS Boys with T1DM visited the Outpatient Clinics of the 1st and 2nd Department of Paediatrics of Aristotle University of Thessaloniki from March until June 2022 were enrolled. Recent anthropometric data were recorded during the follow-up visit whereas previous anthropometric data and demographic data were collected from medical files. A volume of testis > 3 ml was indicative for the onset of puberty. RESULTS A total of 46 boys with T1DM with documented pubertal onset after the diagnosis of T1DM were included in the study. Precocious puberty (<9 years old) was recorded in 5 boys (10.2 %), early puberty (<10 years but >9 years) in 10 (20.4 %) and 34 (69.4 %) entered puberty normally. The duration of T1DM was inversely correlated to the likelihood of earlier puberty (P < 0.001). However, no notable year predominance was observed suggesting no COVID-19 effect. CONCLUSION A considerable number of Greek boys with T1DM appear to develop precocious and early puberty, raising thoughts regarding diabetes management and other possible cofactors.
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Affiliation(s)
- Vasiliki-Rengina Tsinopoulou
- 2nd Department of Paediatrics, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, AHEPA University General Hospital, Thessaloniki, Greece
| | - Athina Stamati
- Postgraduate Program "Research Methodology in Medicine and in Health Sciences", Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Georgia Sotiriou
- 1st Department of Paediatrics, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Ippokratio General Hospital, Thessaloniki, Greece
| | - Eleni Ι Sakellari
- 2nd Department of Paediatrics, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, AHEPA University General Hospital, Thessaloniki, Greece
| | - Meropi Dimitriadou
- 1st Department of Paediatrics, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Ippokratio General Hospital, Thessaloniki, Greece
| | - Assimina Galli-Tsinopoulou
- 2nd Department of Paediatrics, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, AHEPA University General Hospital, Thessaloniki, Greece
| | - Athanasios Christoforidis
- 1st Department of Paediatrics, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Ippokratio General Hospital, Thessaloniki, Greece.
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Hobbs AK, Cheng HL, Tee EY, Steinbeck KS. Menstrual Dysfunction in Adolescents with Chronic Illness: A Systematic Review. J Pediatr Adolesc Gynecol 2023:S1083-3188(23)00337-6. [PMID: 37192680 DOI: 10.1016/j.jpag.2023.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 04/24/2023] [Accepted: 05/08/2023] [Indexed: 05/18/2023]
Abstract
STUDY OBJECTIVE Menstrual dysfunction can impact both the physical and emotional health of young people1. Multiple chronic disease have been associated with menstrual dysfunction in adults2, however there is little research in adolescents, despite non adherence and sub-optimal illness control in this group. We aimed to identify the impact chronic illness has on the age of menarche (AAM) and the menstrual cycle in adolescents. METHODS Studies were extracted of female adolescents aged 10-19 who had a chronic physical illness. Data included outcomes on age of menarche and/or menstrual cycle quality. Exclusion criteria aimed to exclude diseases where menstrual dysfunction was a known part of the disease pathophysiology i.e. polycystic ovarian syndrome3, or in which medications were used that directly impacted gonadal function4. A literature search (to January 2022) was performed on EMBASE, PubMed and Cochrane library databases. Two widely used modified quality analysis tools were used. RESULTS Our initial search netted 1451 articles, of which 95 full texts were examined and 43 met inclusion criteria. 27 papers focussed on Type 1 Diabetes (T1D), with 8 papers examining adolescents with cystic fibrosis (CF) and the remaining studying inflammatory bowel disease (IBD), juvenile idiopathic arthritis (JIA), coeliac disease and chronic renal disease. Metanalysis of 933 patients with T1D versus 5244 controls demonstrated a significantly later AAM in T1D (by 0.42 years; p=<0.00001). There was also a significant association between higher HbA1c and insulin dose (IU/kg) and later age of menarche. Eighteen papers reviewed other aspects of menstruation, including dysmenorrhoea, oligomenorrhoea, amenorrhoea and ovulatory function, with variable findings. CONCLUSION The majority of studies were small and in single populations. Despite this, there was evidence of delayed menarche and some evidence of irregular menses in those with CF and T1D. Further structured studies are needed to evaluate menstrual dysfunction in adolescents and how it relates to their chronic illness.
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Affiliation(s)
- Annabelle K Hobbs
- Specialty of Child and Adolescent Health, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, 2006, Australia; Academic Department of Adolescent Medicine, The Children's Hospital Westmead, Westmead, NSW, 2145, Australia; Department of Endocrinology and Diabetes, Queensland Children's Hospital, Brisbane, QLD 4101.
| | - Hoi Lun Cheng
- Specialty of Child and Adolescent Health, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, 2006, Australia; Academic Department of Adolescent Medicine, The Children's Hospital Westmead, Westmead, NSW, 2145, Australia
| | - Elizabeth Yf Tee
- The Children's Hospital Westmead, Westmead, NSW, 2145, Australia
| | - Katharine S Steinbeck
- Specialty of Child and Adolescent Health, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, 2006, Australia; Academic Department of Adolescent Medicine, The Children's Hospital Westmead, Westmead, NSW, 2145, Australia
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Hovestadt I, Kiess W, Lewien C, Willenberg A, Poulain T, Meigen C, Körner A, Vogel M. HbA1c percentiles and the association between BMI, age, gender, puberty, and HbA1c levels in healthy German children and adolescents. Pediatr Diabetes 2022; 23:194-202. [PMID: 34877761 DOI: 10.1111/pedi.13297] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 10/12/2021] [Accepted: 11/24/2021] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVE The measurement of glycated hemoglobin (HbA1c) represents one way to detect type 1 and 2 diabetes in children at an early stage. However, to date, variations in HbA1c levels are not fully understood, even in healthy children. With this in mind, the present study aimed to establish HbA1c reference values in healthy children and to investigate the influence of various independent variables. STUDY DESIGN AND METHODS Two thousand four hundred fifty-five healthy children and adolescents aged between 0.5 and 18 years participated in the population-based cohort study LIFE Child, Germany. Age- and gender-dependent percentiles were estimated, enabling HbA1c values to be converted into standard deviation scores (SDS). Logistic regression models were applied to assess associations between HbA1c-SDS (as outcome) and age, gender, BMI, birth weight, physical activity, pubertal status, and socioeconomic status (SES; as explanatory variables). RESULTS The mean HbA1c value was 31.79 mmol/mol or 5.06% (SD = 3.3 mmol/mol, SD = 0.3%). Positive associations with HbA1c values were identified for age (b = 0.09, p < 0.001), gender (b = 0.25, p = 0.007), and BMI-SDS (b = 0.06, p < 0.001). In addition, obesity was related to higher HbA1c values (b = 0.29, p < 0.001). Compared to prepuberty, the pubertal and postpubertal stages were associated with higher HbA1c levels. Furthermore, higher SES was associated with higher HbA1c-SDS (b = 0.01, p = 0.04). CONCLUSION The present study established HbA1c reference values based on a large sample of healthy German children and adolescents. Age, gender, SES, pubertal stage, and BMI were found to be associated with higher HbA1c levels.
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Affiliation(s)
- Ina Hovestadt
- LIFE Leipzig Research Center for Civilization Diseases, Leipzig University, Leipzig, Germany
| | - Wieland Kiess
- LIFE Leipzig Research Center for Civilization Diseases, Leipzig University, Leipzig, Germany.,Center for Pediatric Research, Hospital for Children and Adolescents, Leipzig University, Leipzig, Germany
| | - Christiane Lewien
- LIFE Leipzig Research Center for Civilization Diseases, Leipzig University, Leipzig, Germany
| | - Anja Willenberg
- Institute for Laboratory Medicine (ILM), Leipzig University, Leipzig, Germany
| | - Tanja Poulain
- LIFE Leipzig Research Center for Civilization Diseases, Leipzig University, Leipzig, Germany.,Center for Pediatric Research, Hospital for Children and Adolescents, Leipzig University, Leipzig, Germany
| | - Christof Meigen
- LIFE Leipzig Research Center for Civilization Diseases, Leipzig University, Leipzig, Germany
| | - Antje Körner
- LIFE Leipzig Research Center for Civilization Diseases, Leipzig University, Leipzig, Germany.,Center for Pediatric Research, Hospital for Children and Adolescents, Leipzig University, Leipzig, Germany
| | - Mandy Vogel
- LIFE Leipzig Research Center for Civilization Diseases, Leipzig University, Leipzig, Germany.,Center for Pediatric Research, Hospital for Children and Adolescents, Leipzig University, Leipzig, Germany
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Shpitzer H, Lazar L, Shalitin S, Phillip M, de Vries L. Good glycemic control at puberty in boys with type 1 diabetes is important for final height. J Diabetes 2021; 13:998-1006. [PMID: 34263992 DOI: 10.1111/1753-0407.13214] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 07/04/2021] [Accepted: 07/12/2021] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Poor glycemic control in children with type 1 diabetes (T1D) may hinder sexual development and the associated growth spurt. This study aims to identify factors that may affect the timing of puberty, total pubertal growth (TPG), and final height (F-Ht) in boys with T1D. METHODS This was a retrospective longitudinal study of 68 boys diagnosed with T1D during 1996 to 2009, who were prepubertal at diagnosis and had completed puberty at the time of data collection. Data were accessed regarding anthropometric measurements, Tanner stage, and glycosylated hemoglobin (HbA1c) levels from diagnosis to F-Ht. F-Ht was compared to parental height and Israeli National Health Survey data. RESULTS The mean F-Ht standard deviation score (F-Ht-SDS) was lower than the mean Ht-SDS at diagnosis (P < .006) but similar to the mean target height SDS (P = .3) and to values from the national survey (P = .12). Mean HbA1c levels in the year preceding pubertal onset were associated with the age at onset of puberty (R = 0.33, P = .009) and inversely with TPG (R = -0.3, P = .03). Mean HbA1c levels during puberty were inversely associated with TPG (R = -0.26, P = .035) and F-Ht (R = -0.28, P = .02). Boys who presented with diabetic ketoacidosis at diagnosis were shorter than those who did not throughout the follow-up. CONCLUSIONS We found associations of age of pubertal onset, pubertal growth spurt, and F-Ht with target height and glycemic control before and during puberty. Targeted interventions to achieve optimal metabolic control during these time periods are needed for normal, timely puberty and for achieving optimal adult height within the genetic target height.
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Affiliation(s)
- Hana Shpitzer
- The Jesse Z and Sara Lea Shafer Institute for Endocrinology and Diabetes, National Center for Childhood Diabetes, Schneider Children's Medical Center of Israel, Petah Tikva, Israel
| | - Liora Lazar
- The Jesse Z and Sara Lea Shafer Institute for Endocrinology and Diabetes, National Center for Childhood Diabetes, Schneider Children's Medical Center of Israel, Petah Tikva, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Shlomit Shalitin
- The Jesse Z and Sara Lea Shafer Institute for Endocrinology and Diabetes, National Center for Childhood Diabetes, Schneider Children's Medical Center of Israel, Petah Tikva, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Moshe Phillip
- The Jesse Z and Sara Lea Shafer Institute for Endocrinology and Diabetes, National Center for Childhood Diabetes, Schneider Children's Medical Center of Israel, Petah Tikva, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Liat de Vries
- The Jesse Z and Sara Lea Shafer Institute for Endocrinology and Diabetes, National Center for Childhood Diabetes, Schneider Children's Medical Center of Israel, Petah Tikva, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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Bräuner EV, Koch T, Juul A, Doherty DA, Hart R, Hickey M. Prenatal exposure to maternal stressful life events and earlier age at menarche: the Raine Study. Hum Reprod 2021; 36:1959-1969. [PMID: 33744952 DOI: 10.1093/humrep/deab039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 12/21/2020] [Indexed: 11/13/2022] Open
Abstract
STUDY QUESTION Is there an association between prenatal exposure to stressful life events and age at menarche, and does childhood BMI mediate this association? SUMMARY ANSWER Girls exposed to prenatal stress had a slightly earlier age at menarche, but this association did not show a dose-response effect and was not mediated by childhood offspring BMI. WHAT IS ALREADY KNOWN Prenatal stress may impact on reproductive function in females including age at menarche, but human data are very limited. High childhood BMI is known to be associated with earlier age at menarche. Only one small study has measured the association between maternal stress and age at menarche and reported that childhood BMI mediated the association between maternal stress and earlier age at menarche. However, neither maternal stress nor age at menarche was prospectively recorded and the study was limited to 31 mother-daughter pairs. STUDY DESIGN, SIZE, DURATION The Raine Study is a large prospective population-based pregnancy cohort study (n = 1414 mother-daughter pairs) continuously followed from prenatal life through to adolescence. In the present study, we examined the association between exposure to maternal stressful life events during early, late and total gestation and age at menarche in offspring using 753 mother-daughter pairs with complete case information. PARTICIPANTS/MATERIALS, SETTING, METHODS Mothers prospectively reported stressful life events during pregnancy at 18 and 34 weeks using a standardized 10-point questionnaire. Exact date of menarche was assessed using a purpose-designed questionnaire at 8, 10, 14 and 17 years of age. Complete information on exposure, outcome and confounding variables was obtained from 753 mothers-daughter pairs. Multivariate linear regression complete case analysis was used to examine associations between maternal stressful life event exposure and age at menarche. Potential selection bias was evaluated using multiple imputations (50 datasets). The mediating effects of offspring childhood BMI (ages 5, 8, or 10 years) on these associations were measured in separate sub-analyses. MAIN RESULTS AND ROLE OF CHANCE Most (580/753, 77%) daughters were exposed to at least one prenatal stressful life event. Exposure to maternal stressful life events during the entire pregnancy was associated with a non-linear earlier age at menarche. Exposure to one event and two or more psychological stressful events was associated with a 3.5 and 1.7-month earlier onset of puberty, respectively when compared to the reference group with no exposure maternal stressful life events. The estimates from multiple imputation with 50 datasets were comparable with complete case analysis confirming the existence of an underlying effect. No separate significant effects were observed for exposure during early or late gestation. The association between prenatal stressful events and age at menarche was not mediated by childhood BMI in the offspring. LIMITATIONS, REASONS FOR CAUTION Stressful life events may have affected pregnant women in different ways and self-perceived maternal stress severity may have provided a more precise estimate of gestational psychological stress. The observed non-linear U-shape of the association between maternal psychological stress and age at menarche did not reflect a dose-response. This suggests that the first exposure to prenatal stress exerts a greater effect on fetal reproductive development. A potential mechanism is via dramatic initial activation of the hypothalamic-pituitary-adrenal (HPA) axis following the first stressful life event which is greater than that observed following subsequent exposure to two or more maternal stressful life events. Whilst we adjusted for a priori chosen confounders, we cannot exclude residual confounding or confounding by factors we did not include. Maternal age at menarche was not available so the effects of familial history/genetics could not be assessed. There was a large loss due to the number of girls with no information on date of menarche and missing confounder information implying risk of selection bias and multiple imputation analyses did not fully exclude this risk (similar direction but slightly weaker estimate magnitude). WIDER IMPLICATIONS OF THE FINDINGS Menarche is a sentinel reproductive event and earlier age at menarche carries implications for psychological, social and reproductive health and for long-term risk of common non-communicable diseases. Understanding the factors regulating age at menarche has extensive health implications. This is the first population-based cohort study in humans to demonstrate that prenatal psychological stress might directly modify age at menarche. STUDY FUNDING/COMPETING INTEREST(S) Dr. Bräuner and Trine Koch's salaries were supported by Doctor Sofus Carl Emil Friis and spouse Olga Doris Friis foundation, The Danish Cancer Society (Kræftens Bekæmpelse, RP15468, R204-A12636, Denmark) and The Danish Health Foundation (Helsefonden, F-22181-23, Denmark). Martha Hickey was funded by NHMRC Practitioner Fellowships. The funding bodies played no role in the design, collection, analysis, or interpretation of data; in the writing of the manuscript; or in the decision to submit the manuscript for publication. Dr. Hart has received personal fees in his function as the Medical Director of Fertility Specialists of Western Australia and received educational sponsorship grants from MSD, Merck-Serono and from Ferring Pharmaceuticals. Dr Hart has also received personal fees from Shareholders in Western IVF outside the submitted work. TRIAL REGISTRATION NUMBER NA.
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Affiliation(s)
- E V Bräuner
- Department of Growth and Reproduction, Copenhagen University Hospital - Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.,The International Research and Research Training Centre in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - T Koch
- Department of Growth and Reproduction, Copenhagen University Hospital - Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.,The International Research and Research Training Centre in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - A Juul
- Department of Growth and Reproduction, Copenhagen University Hospital - Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.,The International Research and Research Training Centre in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - D A Doherty
- Division of Obstetrics and Gynaecology, University of Western Australia, Perth, Western Australia, Australia
| | - R Hart
- Division of Obstetrics and Gynaecology, University of Western Australia, Perth, Western Australia, Australia.,Fertility Specialists of Western Australia, Bethesda Hospital, Claremont, Western Australia, Australia
| | - M Hickey
- Department of Obstetrics and Gynaecology, University of Melbourne, Melbourne, Victoria, Australia
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Canelón SP, Boland MR. A Systematic Literature Review of Factors Affecting the Timing of Menarche: The Potential for Climate Change to Impact Women's Health. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17051703. [PMID: 32150950 PMCID: PMC7084472 DOI: 10.3390/ijerph17051703] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 02/28/2020] [Accepted: 03/02/2020] [Indexed: 01/17/2023]
Abstract
Menarche is the first occurrence of a woman’s menstruation, an event that symbolizes reproductive capacity and the transition from childhood into womanhood. The global average age for menarche is 12 years and this has been declining in recent years. Many factors that affect the timing menarche in girls could be affected by climate change. A systematic literature review was performed regarding the timing of menarche and four publication databases were interrogated: EMBASE, SCOPUS, PubMed, and Cochrane Reviews. Themes were identified from 112 articles and related to environmental causes of perturbations in menarche (either early or late), disease causes and consequences of perturbations, and social causes and consequences. Research from climatology was incorporated to describe how climate change events, including increased hurricanes, avalanches/mudslides/landslides, and extreme weather events could alter the age of menarche by disrupting food availability or via increased toxin/pollutant release. Overall, our review revealed that these perturbations in the timing of menarche are likely to increase the disease burden for women in four key areas: mental health, fertility-related conditions, cardiovascular disease, and bone health. In summary, the climate does have the potential to impact women’s health through perturbation in the timing of menarche and this, in turn, will affect women’s risk of disease in future.
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Affiliation(s)
- Silvia P. Canelón
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA ;
| | - Mary Regina Boland
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA ;
- Institute for Biomedical Informatics, University of Pennsylvania, Philadelphia, PA 19104, USA
- Center for Excellence in Environmental Toxicology, University of Pennsylvania, Philadelphia, PA 19104, USA
- Department of Biomedical and Health Informatics, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
- Correspondence:
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Early Menstrual Factors Are Associated with Adulthood Cardio-Metabolic Health in a Survey of Mexican Teachers. Matern Child Health J 2019; 23:356-368. [PMID: 30701414 DOI: 10.1007/s10995-018-2650-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Objectives To evaluate whether age at menarche and time to menstrual regularity were related to cardio-metabolic risk factors in Mexican women. Methods The study population comprised 54,921 women from the 2008-2010 wave of the Mexican Teacher's Cohort. A modified Poisson approach was used; exposures were age at menarche and time to menstrual regularity (< 1 year vs. ≥1 year), and outcomes were prevalent obesity, type 2 diabetes, high blood pressure, and high cholesterol. Results Mean (SD) age of women was 42.1 (7.6) years, and mean (SD) menarcheal age was 12.5 (1.5) years. Compared to women with menarche age 13 years, those with menarche < 9 years had a 65% (95% CI 43-90%); 27% (95% CI 4-55%); and 23% (95% CI 1-49%) higher prevalence of obesity, high blood pressure, and high cholesterol, respectively. For diabetes, there was a U-shaped association; compared to menarche age 13 years, those with menarche < 9 years had an 89% higher prevalence of diabetes (95% CI 39-156%), and those with menarche ≥ 17 years had a 65% higher prevalence (95% CI 16-134%). Among women with regular cycles (n = 43,113), a longer time to menstrual regularity was associated with diabetes (PR = 1.11 with 95% CI 1.02-1.22), high blood pressure (PR = 1.11 with 95% CI 1.06-1.17), and high cholesterol (PR = 1.09 with 95% CI 1.04-1.14). Conclusions for practice Mexican women with earlier and later ages at menarche and/or longer time to menstrual regularity may have higher risk of cardio-metabolic disease in adulthood.
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