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Meher T, Sahoo H. Secular trend in age at menarche among Indian women. Sci Rep 2024; 14:5398. [PMID: 38443461 PMCID: PMC10914750 DOI: 10.1038/s41598-024-55657-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 02/26/2024] [Indexed: 03/07/2024] Open
Abstract
Age at menarche is not only a parameter that signifies biological characteristics for women but is also considered as an indicator to measure the quality of life of a population. Moreover, menarche has significant implications on women's health and information about menarcheal age is crucial for health policymakers. However, little is known about the trends in menarcheal age in India. Thus, in order to fill this research gap, the present study aimed to explore the age at menarche, its trend and regional heterogeneity among Indian women. A birth cohort approach was used by polling data from the 1st (1992-93), 4th (2015-16) and 5th (2019-21) rounds of NFHS. Descriptive statistics and bivariate analyses were performed to present the distribution of age at menarche and mean age at menarche across birth cohorts and each category of covariates. A multiple linear regression model was fitted to examine the trend in age at menarche and further to investigate the association of covariates with menarcheal age among Indian women. The analysis demonstrated that a majority of women (66.2%) attained menarche between the ages of 13-14 years. Moreover, about 17.2% of women experienced an early age at menarche, whereas 16.7% of women had a late age at menarche. The mean age at menarche for the sampled women was 13.49 years. The analysis also observed a secular declining trend in menarcheal age among Indian women and a significant variation in the mean age at menarche across birth cohorts. It also highlighted significant socio-economic patterning in menarcheal age among women.
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Affiliation(s)
- Trupti Meher
- International Institute for Population Sciences, Mumbai, India.
| | - Harihar Sahoo
- International Institute for Population Sciences, Mumbai, India
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Medina-Perucha L, López-Jiménez T, Pujolar-Díaz G, Martínez-Bueno C, Munrós-Feliu J, Valls-Llobet C, Jacques-Aviñó C, Holst AS, Pinzón-Sanabria D, Vicente-Hernández MM, García-Egea A, Berenguera A. Menstrual characteristics and associations with sociodemographic factors and self-rated health in Spain: a cross-sectional study. BMC Womens Health 2024; 24:88. [PMID: 38310222 PMCID: PMC10838449 DOI: 10.1186/s12905-023-02840-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 12/12/2023] [Indexed: 02/05/2024] Open
Abstract
BACKGROUND Evidence on how menstrual characteristics may differ based on socioeconomic factors and self-rated health is significantly scarce. The main aim of this study was to investigate the associations between menstrual characteristics, sociodemographic factors and self-rated health among women and people who menstruate (PWM) aged 18-55 in Spain. METHODS This cross-sectional study includes data from an online survey collected in March-July 2021 across Spain. Descriptive statistical analyses and multivariate logistic regression models were performed. RESULTS The analyses included a total of 19,358 women and PWM. Mean age at menarche was 12.4 (SD = 1.5). While 20.3% of our participants experienced a menstrual abundance over 80 ml, 64.1% reported having menstrual blood clots; 6.4% menstruated for longer than 7 days. 17.0% had menstrual cycles that were shorter than 21 days or longer than 35 days. Reports of moderate (46.3%) and high (22.7%) intensity menstrual pain were common. 68.2% of our participants experienced premenstrual symptoms in all or most cycles. The odds for lighter menstrual flow, shorter bleeding days and menstrual cycles were higher as age increased, and amongst participants with less educational attainment. Caregivers presented higher odds for abundant menstrual flow and longer menstruations. Reporting financial constraints and a poorer self-rated health were risk factors for abundant menstrual flow, menstrual blood clots, shorter/longer menstruations and menstrual cycles, premenstrual symptoms, moderate and intense menstrual pain. CONCLUSIONS This study suggests that age, educational attainment, caregiving, experiencing financial hardship and a poorer self-rated health may shape or mediate menstrual characteristics. It thus highlights the need to investigate and address social inequities of health in menstrual research.
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Affiliation(s)
- Laura Medina-Perucha
- Fundació Institut Universitari per a la recerca a l'Atenció Primària de Salut Jordi Gol i Gurina (IDIAPJGol), Barcelona, Spain.
- Universitat Autonoma de Barcelona, Cerdanyola del Vallès, Bellaterra, Spain.
| | - Tomàs López-Jiménez
- Fundació Institut Universitari per a la recerca a l'Atenció Primària de Salut Jordi Gol i Gurina (IDIAPJGol), Barcelona, Spain
- Universitat Autonoma de Barcelona, Cerdanyola del Vallès, Bellaterra, Spain
| | - Georgina Pujolar-Díaz
- Fundació Institut Universitari per a la recerca a l'Atenció Primària de Salut Jordi Gol i Gurina (IDIAPJGol), Barcelona, Spain
- Universitat Autonoma de Barcelona, Cerdanyola del Vallès, Bellaterra, Spain
| | - Cristina Martínez-Bueno
- Servei d'Atenció a la Salut Sexual i Reproductiva (ASSIR). Direcció Assistencial d'Atenció Primària, Institut Català de la Salut, Barcelona, Spain
- Sexual and Reproductive Health Care Research Group (GRASSIR), Barcelona, Spain
- Universitat de Barcelona, Barcelona, Spain
| | - Jordina Munrós-Feliu
- Sexual and Reproductive Health Care Research Group (GRASSIR), Barcelona, Spain
- Atenció a la Salut Sexual i Reproductiva (ASSIR) Muntanya/La Mina, Institut Català de la Salut, Barcelona, Spain
| | | | - Constanza Jacques-Aviñó
- Fundació Institut Universitari per a la recerca a l'Atenció Primària de Salut Jordi Gol i Gurina (IDIAPJGol), Barcelona, Spain
- Universitat Autonoma de Barcelona, Cerdanyola del Vallès, Bellaterra, Spain
| | - Anna Sofie Holst
- Fundació Institut Universitari per a la recerca a l'Atenció Primària de Salut Jordi Gol i Gurina (IDIAPJGol), Barcelona, Spain
| | | | | | - Andrea García-Egea
- Fundació Institut Universitari per a la recerca a l'Atenció Primària de Salut Jordi Gol i Gurina (IDIAPJGol), Barcelona, Spain
- Universitat Autonoma de Barcelona, Cerdanyola del Vallès, Bellaterra, Spain
| | - Anna Berenguera
- Fundació Institut Universitari per a la recerca a l'Atenció Primària de Salut Jordi Gol i Gurina (IDIAPJGol), Barcelona, Spain
- Universitat Autonoma de Barcelona, Cerdanyola del Vallès, Bellaterra, Spain
- Departament d'Infermeria, Universitat de Girona, Girona, Spain
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Iwase M, Taniyama Y, Koyanagi YN, Kasugai Y, Oze I, Masuda N, Ito H, Matsuo K. A Century of Change: Unraveling the Impact of Socioeconomic/Historical Milestones on Age at Menarche and Other Female Reproductive Factors in Japan. J Epidemiol 2024:JE20230155. [PMID: 38191181 PMCID: PMC11230879 DOI: 10.2188/jea.je20230155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2024] Open
Abstract
BACKGROUND Reproductive factors such as age at menarche are known to be associated with disease risk, but data on trends in these factors in Japan are limited. In this study, we investigated secular trends in reproductive factors and explored their potential association with socioeconomic and historical events. METHODS We conducted a retrospective analysis of 62,005 Japanese women born between 1890 and 1991 using a survey conducted over 25 years. Trends in reproductive factors were analyzed using linear and joinpoint regression models, and their associations with major historical events involving Japan were evaluated. RESULTS We found that the age at menarche showed a significant downward trend (P-value<0.001) over the century. Three joinpoints were identified, in 1932 (15.23 years old), 1946 (13.48 years old), and 1959 (12.71 years old), which indicated that average age at menarche decreased by approximately 0.8% per year between 1932 and 1946, and then by 0.4% per year between 1946 and 1959, both of which were statistically significant. However, after 1959, age of menarche remained stable. Analyses of other reproductive factors found significant changes, including a decrease in parity and the number of babies breastfed, and an increase in age at first birth. CONCLUSION Age at menarche showed a long-term downward trend in Japan, with significant change points in annual percent change. Other factors showed secular changes in trends as well. These change points were observed at the same time as historical events, namely wars and economic development, suggesting that socioeconomic and environmental changes at the population level affect reproductive factors in females.
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Affiliation(s)
- Madoka Iwase
- Division of Cancer Epidemiology and Prevention, Aichi Cancer Center
- Department of Breast and Endocrine Surgery, Nagoya University Hospital
| | - Yukari Taniyama
- Division of Cancer Information and Control, Aichi Cancer Center
| | | | - Yumiko Kasugai
- Division of Cancer Epidemiology and Prevention, Aichi Cancer Center
| | - Isao Oze
- Division of Cancer Epidemiology and Prevention, Aichi Cancer Center
| | - Norikazu Masuda
- Department of Breast and Endocrine Surgery, Nagoya University Graduate School of Medicine
| | - Hidemi Ito
- Division of Cancer Information and Control, Aichi Cancer Center
- Division of Descriptive Cancer Epidemiology, Nagoya University Graduate School of Medicine
| | - Keitaro Matsuo
- Division of Cancer Epidemiology and Prevention, Aichi Cancer Center
- Division of Cancer Epidemiology, Nagoya University Graduate School of Medicine
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Taim BC, Lye J, Suppiah HT, Chan TW, Chia M, Clarke A. Menstrual cycle characteristics, perceived impact on performance, and barriers to communication: Perspectives of high-performance adolescent athletes in Singapore. Scand J Med Sci Sports 2024; 34:e14488. [PMID: 37682006 DOI: 10.1111/sms.14488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 07/09/2023] [Accepted: 08/23/2023] [Indexed: 09/09/2023]
Abstract
The purpose of this study was to examine the menstrual cycle (MC) characteristics, explore the impact on performance, and identify barriers to and facilitators of MC-related communication among high-performance female adolescent athletes in Singapore. Ninety athletes (15.4 ± 1.8 years) from multiple sports completed an online questionnaire. Eighty-four athletes were postmenarcheal (menarcheal age 11.9 ± 1.3 years), including two who were using an oral contraceptive pill (OCP). Secondary amenorrhea, current or history of, was self-reported in 16% of athletes. Sixty-two percent and 67% of non-OCP athletes perceived that the MC affected their ability to train and compete, respectively. Athletes preferred speaking to a parent (85%) and a female figure (67%) about MC-related concerns. Through thematic analysis, three barriers to communication were constructed: (1) pervasive menstrual stigma, (2) constraints of the training environment, and (3) the low value placed on MC-related conversations. Two facilitators of communication were constructed: (1) respect athletes' individual experiences as menstruating girls and (2) foster a safe space for MC-related conversations. Findings demonstrated that menstrual irregularities are common in adolescent athletes and screening for MC disorders, particularly primary amenorrhea should be undertaken in this population, with clear support pathways for management including symptom mitigation. To support athletes in raising MC-related concerns when needed, structured communication pathways that consider individual preferences and involve a (female) point of contact should be established within the training environment. Improving menstrual health literacy among adolescent athletes before any misinformation or negative perceptions are firmly established may contribute to longevity in their athletic careers.
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Affiliation(s)
- Bernadette Cherianne Taim
- Department of Sport and Health Sciences, Technological University of the Shannon: Midlands Midwest, Athlone, Ireland
- SHE Research Group, Technological University of the Shannon: Midlands Midwest, Athlone, Ireland
- National Youth Sports Institute, Singapore
| | - Jamie Lye
- National Youth Sports Institute, Singapore
- Human Potential Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Haresh T Suppiah
- Sport, Performance, and Nutrition Research Group, School of Allied Health, Human Services and Sport, La Trobe University, Bundoora, Victoria, Australia
| | | | - Michael Chia
- Physical Education and Sports Science Group, National Institute of Education, Nanyang Technological University, Singapore
| | - Anthea Clarke
- Sport, Performance, and Nutrition Research Group, School of Allied Health, Human Services and Sport, La Trobe University, Bundoora, Victoria, Australia
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Kim T, Yun JW, Son M, Kim CB, Choe SA. Age at menarche of adolescent girls and the neighbourhood socioeconomic status of their school area. EUR J CONTRACEP REPR 2023; 28:65-71. [PMID: 36053277 DOI: 10.1080/13625187.2022.2104834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
PURPOSE To assess the association between abnormal timing of menarche among adolescent girls and neighbourhood socioeconomic status of their school area. MATERIALS AND METHODS Our analysis included 187,024 girls aged 15-18 years from the Korea Youth Risk Behaviour Web-Based Survey (KYRBS) from 2007 to 2015. Early and late menarche were defined as menarche before 11 years and no menarche by age 14 years, respectively. The deprivation index values for the areas where the schools were located were used as an indicator of neighbourhood socioeconomic status based on the 2005 national census data. We calculated odds ratios (OR) for early and late menarche using a multinomial logistic regression model. Covariates included body mass index, parental education, single or stepparents, siblings, household wealth, year of birth, survey year, and urbanisation. RESULTS Mean age at menarche was 12 years. The overall proportions of early and late menarche were 11.3% and 3.3%, respectively. When divided into four quartile groups based on the socioeconomic deprivation index, 11.3% of girls in the most deprived quartile and 10.6% in the least deprived area showed early menarche. The prevalence of late menarche did not differ across the deprivation index quartiles of school area. Attendance at schools located in highly deprived areas was associated with up to 10% higher risk of early menarche. This positive association was not evident for late menarche. CONCLUSION Among contemporary Korean girls, socioeconomic deprivation of the school area was associated with earlier puberty. This finding highlights the potential role of the socioeconomic environment of schools in women's lifetime health.
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Affiliation(s)
- Taemi Kim
- Department of Public Health, Graduate School of Korea University, Seoul, Korea
| | - Jae-Won Yun
- Seoul National University Hospital, Seoul, Korea
| | - Mia Son
- Department of Preventive Medicine, School of Medicine, Kangwon National University, Chuncheon, Korea
| | - Chae-Bong Kim
- Division of Life Science, Korea university, Seoul, Korea
| | - Seung-Ah Choe
- Division of Life Science, Korea university, Seoul, Korea.,Department of Preventive Medicine, Korea University College of Medicine, Seoul, Korea
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Juber NF, Waits A, Dlamini LP, Nguyen T, Masango BZ. Associations between pediatric asthma and age at menarche: evidence from the Indonesian Family Life Survey. J Asthma 2023; 60:105-114. [PMID: 35034545 DOI: 10.1080/02770903.2022.2030750] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
OBJECTIVE To examine the association between pediatric asthma and age at menarche, and to assess whether early life factors modify the association. METHODS This is a retrospective cross-sectional study using the Indonesian Family Life Survey Fifth Wave which had a total of 11 822 females aged 15-57 years to evaluate whether those with pediatric asthma were associated with earlier menarche, compared to females without asthma. We performed a weighted linear regression model adjusting for age, urbanicity, parental smoking, infectious disease history during childhood, childhood socioeconomic status, and health status during childhood. We also performed analyses by age at asthma diagnosis, interval length between asthma diagnosis and menarche, urbanicity, parental smoking, and infectious disease history during childhood. RESULTS In the adjusted model, females with pediatric asthma had an earlier average age at menarche by 5.2 months and those diagnosed with asthma at 5-8 years of age had the fastest acceleration by 14.9 months. The significant association persisted among those with 0-5 years interval between asthma diagnosis and menarche, who resided in urban areas, and those without infectious disease history during childhood. CONCLUSIONS Our findings showed that females with pediatric asthma were associated with an earlier age at menarche, and some early life factors modified the association. Better asthma management with more targeted strategies at those at risk of earlier menarche may improve the reproductive and future health of children with asthma. Future studies to elucidate the mechanisms between pediatric asthma and age at menarche are warranted.
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Affiliation(s)
- Nirmin F Juber
- Institute of Public Health, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Public Health Research Center, New York University Abu Dhabi, Abu Dhabi, UAE
| | - Alexander Waits
- Institute of Public Health, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Tao Yuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan
| | | | - Tan Nguyen
- Institute of Public Health, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Bongani Zakhele Masango
- Institute of Public Health, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
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Asrullah M, L'Hoir M, Feskens EJM, Melse-Boonstra A. Trend in age at menarche and its association with body weight, body mass index and non-communicable disease prevalence in Indonesia: evidence from the Indonesian Family Life Survey (IFLS). BMC Public Health 2022; 22:628. [PMID: 35361192 PMCID: PMC8969286 DOI: 10.1186/s12889-022-12995-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 03/15/2022] [Indexed: 11/15/2022] Open
Abstract
Background In western countries, age at menarche (AAM) is nowadays lower than a century ago, coinciding with increased Body Mass Index (BMI) and prevalence of non-communicable diseases (NCD). This study aimed to determine the time trend in AAM, and its association with BMI and NCD prevalence at later age, in Indonesia. Methods We used secondary data of 15,744 women aged 15–65 years from the Indonesian Family Life Survey (IFLS) conducted in the period 1993 to 2015. Multiple linear regression was applied to determine the association of AAM with BMI, and Poisson regression with robust variance for investigating the association of AAM with NCD prevalence ratios. Models were adjusted for age, and effect modification by wealth status, living area, and region was investigated. Results AAM has significantly declined from 14.4 (SD:2.1) years of age in the 1940s to 13.4 y (SD:1.5) in the 1990s. AAM was inversely associated with BMI (β: − 0.30 kg/m2, 95%CI: − 0.37, − 0.22) and body weight (β: − 0.67 kg, 95%CI: − 0.75, − 0.54), but was not associated with height. After adjustment for age, AAM was not associated with NCD, i.e. hypertension, type 2 diabetes mellitus, liver diseases, asthma, chronic lung diseases, cardiovascular diseases, stroke, cancer, or arthritis. Including BMI in the models did not change the results. Conclusions From the 1940s to 1990s, AAM has declined with 1 year in Indonesia. Women with earlier AAM had higher BMI and body weight at later age, but AAM was not associated with NCD prevalence in later life in the Indonesian population. Further longitudinal research is needed to disentangle the direction of causality of the associations. Supplementary Information The online version contains supplementary material available at 10.1186/s12889-022-12995-3.
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Affiliation(s)
- Muhammad Asrullah
- Division of Human Nutrition and Health, Wageningen University and Research, Stippeneng 4, 6708, WE, Wageningen, the Netherlands
| | - Monique L'Hoir
- Division of Human Nutrition and Health, Wageningen University and Research, Stippeneng 4, 6708, WE, Wageningen, the Netherlands
| | - Edith J M Feskens
- Division of Human Nutrition and Health, Wageningen University and Research, Stippeneng 4, 6708, WE, Wageningen, the Netherlands
| | - Alida Melse-Boonstra
- Division of Human Nutrition and Health, Wageningen University and Research, Stippeneng 4, 6708, WE, Wageningen, the Netherlands.
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Hennegan J, Swe ZY, Than KK, Smith C, Sol L, Alberda H, Bukenya JN, Kibira SPS, Makumbi FE, Schwab KJ, Azzopardi PS. Monitoring Menstrual Health Knowledge: Awareness of Menstruation at Menarche as an Indicator. Front Glob Womens Health 2022; 3:832549. [PMID: 35400130 PMCID: PMC8988033 DOI: 10.3389/fgwh.2022.832549] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 02/28/2022] [Indexed: 11/21/2022] Open
Abstract
As initiatives to support menstrual health are implemented globally, monitoring progress through a set of comprehensive indicators provides important feedback to direct policies and programs. One proposed core indicator is awareness of menstruation at menarche. That is, at the time of menarche an adolescent girl knowing that menstrual bleeding is something she will experience. In this investigation, we undertook secondary analysis of data collected across four studies to support interpretation of this indicator. We (1) describe the proportion of each sample aware of menstruation at menarche, (2) test variations in awareness according to sociodemographic characteristics, and (3) describe the associations between this indicator and self-reported experience at menarche, social support, and confidence to manage menstruation. Studies included cross-sectional survey data from 421 schoolgirls in Magway, Myanmar, 537 schoolgirls in Soroti, Uganda, 1,359 schoolgirls in Netrokona, Bangladesh, and 599 adult women working in Mukono, Uganda. Awareness of menstruation at menarche varied from 84% in Myanmar to 34% in Bangladesh. Older age at menarche was associated with awareness. Awareness at menarche was not associated with household poverty in the adolescent samples, but greater poverty was associated with lower levels of awareness among adult women. In Myanmar, girls aware of menstruation had significantly higher odds of reporting that they felt prepared (2.85 95% CI 1.34–6.08), happy (OR = 3.81 95% CI 1.74–8.37) and knew what was happening at menarche (OR = 2.37 95% CI 1.34–4.19). However, they also reported higher levels of embarrassment (OR = 1.76 95% CI 1.04–2.97) and did not report significantly less fear (OR = 1.24 95% CI 0.82–1.85). Awareness of menstruation at menarche was associated with higher scores on a menstrual knowledge quiz in both Myanmar (b = 9.51 95% CI 3.99–15.04) and Bangladesh (b = 4.78 95% CI 1.70–7.87). In these studies girls aware of menstruation at menarche also had higher odds of reporting they felt confident discussing menstruation with support sources and managing menstruation at school, while these differences were not significant among schoolgirls in Uganda. Findings support the usefulness of awareness of menstruation at menarche as an indicator to describe minimal knowledge of menstruation and suggest that awareness may signal greater knowledge, social support, and confidence in some settings.
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Affiliation(s)
- Julie Hennegan
- Global Adolescent Health Group, Maternal Child and Adolescent Health Program, Burnet Institute, Melbourne, VIC, Australia
- Melbourne School of Population and Global Health, University of Melbourne, Melbourne, VIC, Australia
- *Correspondence: Julie Hennegan
| | - Zay Yar Swe
- Myanmar Country Program, International Development Discipline, Burnet Institute, Yangon, Myanmar
| | - Kyu Kyu Than
- Myanmar Country Program, International Development Discipline, Burnet Institute, Yangon, Myanmar
| | - Calum Smith
- Irise International, Sheffield, United Kingdom
| | - Lidwien Sol
- School of Business and Economics, Maastricht University, Maastricht, Netherlands
| | | | - Justine N. Bukenya
- Department of Community Health and Behavioural Sciences, School of Public Health, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Simon P. S. Kibira
- Department of Community Health and Behavioural Sciences, School of Public Health, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Fredrick E. Makumbi
- Department of Epidemiology and Biostatistics, School of Public Health, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Kellogg J. Schwab
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States
| | - Peter S. Azzopardi
- Global Adolescent Health Group, Maternal Child and Adolescent Health Program, Burnet Institute, Melbourne, VIC, Australia
- Adolescent Health and Wellbeing Program, Aboriginal Health Equity Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia
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Matsuo LH, Adami F, Pereira LJ, Silva DAS, Vasconcelos FDAG, Longo GZ, Vieira FGK, Hinnig PDF. Age at menarche and its association with overweight including obesity and socio‐economic conditions of Brazilian schoolgirls: A time‐trend analysis. NUTR BULL 2022; 47:70-81. [DOI: 10.1111/nbu.12544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 01/11/2022] [Accepted: 01/11/2022] [Indexed: 11/29/2022]
Affiliation(s)
- Luísa Harumi Matsuo
- Postgraduate Program in Nutrition Federal University of Santa Catarina Florianópolis Brazil
| | - Fernando Adami
- Laboratory of Epidemiology and Data Analysis University Center Health ABC Santo André Brazil
| | | | | | | | - Giana Zarbato Longo
- Postgraduate Program in Nutrition Federal University of Santa Catarina Florianópolis Brazil
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Roberts SA, Kaiser UB. GENETICS IN ENDOCRINOLOGY: Genetic etiologies of central precocious puberty and the role of imprinted genes. Eur J Endocrinol 2020; 183:R107-R117. [PMID: 32698138 PMCID: PMC7682746 DOI: 10.1530/eje-20-0103] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 06/03/2020] [Indexed: 12/19/2022]
Abstract
Pubertal timing is regulated by the complex interplay of genetic, environmental, nutritional and epigenetic factors. Criteria for determining normal pubertal timing, and thus the definition of precocious puberty, have evolved based on published population studies. The significance of the genetic influence on pubertal timing is supported by familial pubertal timing and twin studies. In contrast to the many monogenic causes associated with hypogonadotropic hypogonadism, only four monogenic causes of central precocious puberty (CPP) have been described. Loss-of-function mutations in Makorin Ring Finger Protein 3(MKRN3), a maternally imprinted gene on chromosome 15 within the Prader-Willi syndrome locus, are the most common identified genetic cause of CPP. More recently, several mutations in a second maternally imprinted gene, Delta-like noncanonical Notch ligand 1 (DLK1), have also been associated with CPP. Polymorphisms in both genes have also been associated with the age of menarche in genome-wide association studies. Mutations in the genes encoding kisspeptin (KISS1) and its receptor (KISS1R), potent activators of GnRH secretion, have also been described in association with CPP, but remain rare monogenic causes. CPP has both short- and long-term health implications for children, highlighting the importance of understanding the mechanisms contributing to early puberty. Additionally, given the role of mutations in the imprinted genes MKRN3 and DLK1 in pubertal timing, other imprinted candidate genes should be considered for a role in puberty initiation.
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Affiliation(s)
- Stephanie A. Roberts
- Division of Endocrinology, Boston Children’s Hospital, Boston, Massachusetts
- Division of Endocrinology, Diabetes and Hypertension, Brigham and Women’s Hospital, Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
| | - Ursula B. Kaiser
- Division of Endocrinology, Diabetes and Hypertension, Brigham and Women’s Hospital, Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
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Kousar S, Shabbir A, Shafqat R. Investigation of Socioeconomic Determinants on Child Death in South Asian Countries: A Panel Cointegration Analysis. OMEGA-JOURNAL OF DEATH AND DYING 2020; 84:811-836. [PMID: 32276562 DOI: 10.1177/0030222820915023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This article is aimed to examine the relationship between socioeconomic factors and child mortality in South Asia because the relationship between child mortality and socioeconomic factors cannot be overlooked for better progress. Panel data were obtained from (World Development Indicators) and (Human Development Index) for the period 1990-2017. The data were quantitative. Levin, Lin, and Chu and I'm, Pesaran, and Shin test were used to check the stationarity of data. A cointegration test was applied to check the long-run association. Granger causality test was used to determine the direction of the relationship. Fully modified ordinary least squares and dynamic ordinary least squares techniques were used to examine the long-run and short-run impact of socioeconomic determinants on child mortality. The findings from this study showed the significant impact of education, unemployment, and health expenditure, access to improved water and sanitation facilities, and income inequality on child mortality. Overall results showed that there is a negative association between education and child mortality, access to improved water and access to sanitation facilities and child mortality, and health expenditure and child mortality, but there is a positive association between unemployment and income inequality with child mortality. The rate of child mortality is still very alarming in South Asian countries.
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Affiliation(s)
- Shazia Kousar
- Department of Management Science, The Superior College, Lahore, Pakistan
| | - Aiza Shabbir
- Department of Management Science, The Superior College, Lahore, Pakistan
| | - Rukia Shafqat
- Department of Management Science, The Superior College, Lahore, Pakistan
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Variation in menarcheal age of school-aged female athletes engaged in different types of sport. ANTHROPOLOGICAL REVIEW 2019. [DOI: 10.2478/anre-2019-0019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
It is widely known from the literature that the rate of physical development and sexual maturation is not only determined by genetics but is also modified by physical workload factors. Given the above, this paper aimed at comparing menarcheal age of school-aged athletes engaged in different types of sport (and their respective workloads) after controlling for physical traits such as body height and mass and slenderness ratio. The survey was conducted in 2017 in 6 sports schools in Poland’s Lubuskie Voivodeship. Body height and mass were measured and the slenderness index (body height divided by the cubic root of body weight) was used to establish body build. The age of menarche was self-reported by the study participants. In total, 232 girls aged 9–18 were included in the research, of whom 125 reported their age of menarche. The age-adjusted arithmetic means and standard deviations were calculated for the study participants’ estimates. The raw data were then transformed into standardized z-score values. The significance of differences was assessed by Mann-Whitney U test as an alternative to the t-test when a given variable was not normally distributed. Pearson’s correlation coefficient was used to evaluate linear relations between the workload and age at menarche. It was found that dancers, acrobats and swimmers reported the youngest menarcheal ages. Girls practising most demanding sport disciplines (in terms of strength and endurance) reported the oldest age at menarche. Girls practising more than 3 times per week had menarche later than those practising 3 times a week or less, and the difference was statistically significant. In conclusion it might be stated that the type of sport discipline has a significant effect on age of menarche. Sport disciplines involving heavier physical exertion usually delay the onset of menstruation.
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