{"id":"https://openalex.org/keywords/menarche","display_name":"menarche","description":"The onset of menstruation at an individual's first menstrual period, studied in reproductive health, adolescent development, and social science.","display_name_alternatives":["menarche onset","first menstrual period","first menstruation","first period"],"ids":{"openalex":"https://openalex.org/keywords/menarche","wikidata":"https://www.wikidata.org/wiki/Q492514"},"primary_topic":{"id":"https://openalex.org/T12054","display_name":"Menstrual Health and Disorders","score":0.2489,"subfield":{"id":"https://openalex.org/subfields/2739","display_name":"Public Health, Environmental and Occupational Health"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T12054","display_name":"Menstrual Health and Disorders","score":0.2489,"subfield":{"id":"https://openalex.org/subfields/2739","display_name":"Public Health, Environmental and Occupational Health"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10960","display_name":"Hypothalamic control of reproductive hormones","score":0.2037,"subfield":{"id":"https://openalex.org/subfields/2743","display_name":"Reproductive Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"works_count":9056,"cited_by_count":144058,"works_api_url":"https://api.openalex.org/works?filter=keywords.id:keywords/menarche","updated_date":"2026-10-22T04:07:25","created_date":"2022-04-12T19:38:12"}
