?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=The+Age+At+Menarche+In+Nigerian+Adolescents+From+Two+Different+Socioeconomic+Classes&rft.creator=Ofuya%2C+Zuleat+Millicent&rft.subject=Online+Journal+of+Health+and+Allied+Sciences&rft.description=Menarcheal+age+was+studied+in+900+girls%2C+half+of+which+were+from+middle+class+families+and+the+other+half+from+low+income+class+families+from+the+Niger+delta+region+of+Nigeria.+A+retrospective+and+descriptive+random+sampling+study+was+conducted+through+the+use+of+questionnaires.+Social+class+was+based+on+parental+occupation.+The+mean+age+at+menarche+for+girls+from+middle+class+families+was+12.22+%C2%B1+1.19+years+while+that+for+girls+from+low+income+families+was+13.01+%C2%B1+1.44+years.+Most+of+the+children+from+the+middle+class+families+attained+menarche+at+the+ages+of+12+and+13+while+those+from+the+low+income+families+attained+menarche+at+the+ages+of+12%2C+13+and+14+years.%3A+The+age+at+menarche+of+girls+from+middle+class+families+was+significantly+lower+than+those+of+girls+from+the+low+socioeconomic+class+and+is+similar+to+those+obtained+for+U.S.+girls+The+age+of+menarche+of+girls+from+low+income+families+is+lower+than+a+result+of+similar+study+obtained+for+rural+India.&rft.publisher=Dr.+B.S.+Kakkilaya&rft.contributor=Kakkilaya%2C+Dr.+Srinivas&rft.date=2008-01-24&rft.type=Journal+(On-line%2FUnpaginated)&rft.type=PeerReviewed&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Fcogprints.org%2F5933%2F1%2F2007-4-3.pdf&rft.identifier=++Ofuya%2C+Zuleat+Millicent++(2008)+The+Age+At+Menarche+In+Nigerian+Adolescents+From+Two+Different+Socioeconomic+Classes.++%5BJournal+(On-line%2FUnpaginated)%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F5933%2F