Discrete-time Survival Analysis of Risk Factors for Early Menarche in Korean Schoolgirls
Objectives The aim of this study was to evaluate the effect of body weight status and sleep duration on the discrete-time hazard of menarche in Korean schoolgirls using multiple-point prospective panel data. Methods The study included 914 girls in the 2010 Korean Children and Youth Panel Study who w...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Korean Society for Preventive Medicine
2023-01-01
|
| Series: | Journal of Preventive Medicine and Public Health |
| Subjects: | |
| Online Access: | http://jpmph.org/upload/pdf/jpmph-22-428.pdf |
| _version_ | 1797845588605140992 |
|---|---|
| author | Yong Jin Gil Jong Hyun Park Joohon Sung |
| author_facet | Yong Jin Gil Jong Hyun Park Joohon Sung |
| author_sort | Yong Jin Gil |
| collection | DOAJ |
| description | Objectives The aim of this study was to evaluate the effect of body weight status and sleep duration on the discrete-time hazard of menarche in Korean schoolgirls using multiple-point prospective panel data. Methods The study included 914 girls in the 2010 Korean Children and Youth Panel Study who were in the elementary first-grader panel from 2010 until 2016. We used a Gompertz regression model to estimate the effects of weight status based on age-specific and sex-specific body mass index (BMI) percentile and sleep duration on an early schoolchild’s conditional probability of menarche during a given time interval using general health condition and annual household income as covariates. Results Gompertz regression of time to menarche data collected from the Korean Children and Youth Panel Study 2010 suggested that being overweight or sleeping less than the recommended duration was related to an increased hazard of menarche compared to being average weight and sleeping 9 hours to 11 hours, by 1.63 times and 1.38 times, respectively, while other covariates were fixed. In contrast, being underweight was associated with a 66% lower discrete-time hazard of menarche. Conclusions Weight status based on BMI percentiles and sleep duration in the early school years affect the hazard of menarche. |
| first_indexed | 2024-04-09T17:41:25Z |
| format | Article |
| id | doaj.art-247ed14855854ace84bc3524bd9ffd4e |
| institution | Directory Open Access Journal |
| issn | 1975-8375 2233-4521 |
| language | English |
| last_indexed | 2024-04-09T17:41:25Z |
| publishDate | 2023-01-01 |
| publisher | Korean Society for Preventive Medicine |
| record_format | Article |
| series | Journal of Preventive Medicine and Public Health |
| spelling | doaj.art-247ed14855854ace84bc3524bd9ffd4e2023-04-17T04:20:23ZengKorean Society for Preventive MedicineJournal of Preventive Medicine and Public Health1975-83752233-45212023-01-01561596610.3961/jpmph.22.4282259Discrete-time Survival Analysis of Risk Factors for Early Menarche in Korean SchoolgirlsYong Jin Gil0Jong Hyun Park1Joohon Sung2 Division of Genome and Health Big Data, Department of Public Health Sciences, Graduate School of Public Health, Seoul National University, Seoul, Korea Division of Genome and Health Big Data, Department of Public Health Sciences, Graduate School of Public Health, Seoul National University, Seoul, Korea Division of Genome and Health Big Data, Department of Public Health Sciences, Graduate School of Public Health, Seoul National University, Seoul, KoreaObjectives The aim of this study was to evaluate the effect of body weight status and sleep duration on the discrete-time hazard of menarche in Korean schoolgirls using multiple-point prospective panel data. Methods The study included 914 girls in the 2010 Korean Children and Youth Panel Study who were in the elementary first-grader panel from 2010 until 2016. We used a Gompertz regression model to estimate the effects of weight status based on age-specific and sex-specific body mass index (BMI) percentile and sleep duration on an early schoolchild’s conditional probability of menarche during a given time interval using general health condition and annual household income as covariates. Results Gompertz regression of time to menarche data collected from the Korean Children and Youth Panel Study 2010 suggested that being overweight or sleeping less than the recommended duration was related to an increased hazard of menarche compared to being average weight and sleeping 9 hours to 11 hours, by 1.63 times and 1.38 times, respectively, while other covariates were fixed. In contrast, being underweight was associated with a 66% lower discrete-time hazard of menarche. Conclusions Weight status based on BMI percentiles and sleep duration in the early school years affect the hazard of menarche.http://jpmph.org/upload/pdf/jpmph-22-428.pdfmenarchesurvival analysisobesityadolescentbody mass indexsleep |
| spellingShingle | Yong Jin Gil Jong Hyun Park Joohon Sung Discrete-time Survival Analysis of Risk Factors for Early Menarche in Korean Schoolgirls Journal of Preventive Medicine and Public Health menarche survival analysis obesity adolescent body mass index sleep |
| title | Discrete-time Survival Analysis of Risk Factors for Early Menarche in Korean Schoolgirls |
| title_full | Discrete-time Survival Analysis of Risk Factors for Early Menarche in Korean Schoolgirls |
| title_fullStr | Discrete-time Survival Analysis of Risk Factors for Early Menarche in Korean Schoolgirls |
| title_full_unstemmed | Discrete-time Survival Analysis of Risk Factors for Early Menarche in Korean Schoolgirls |
| title_short | Discrete-time Survival Analysis of Risk Factors for Early Menarche in Korean Schoolgirls |
| title_sort | discrete time survival analysis of risk factors for early menarche in korean schoolgirls |
| topic | menarche survival analysis obesity adolescent body mass index sleep |
| url | http://jpmph.org/upload/pdf/jpmph-22-428.pdf |
| work_keys_str_mv | AT yongjingil discretetimesurvivalanalysisofriskfactorsforearlymenarcheinkoreanschoolgirls AT jonghyunpark discretetimesurvivalanalysisofriskfactorsforearlymenarcheinkoreanschoolgirls AT joohonsung discretetimesurvivalanalysisofriskfactorsforearlymenarcheinkoreanschoolgirls |