Department of Obstetrics and Gynecology, Faculty of Medicine, University of Jordan, Amman, Jordan.
Int J Gynaecol Obstet. 2012 Dec;119(3):281-3. doi: 10.1016/j.ijgo.2012.07.009. Epub 2012 Sep 12.
To estimate the distribution of age at menarche and investigate menstrual patterns and symptoms among adolescent Jordanian girls.
Menstrual status data were collected from 596 secondary-school students from the Amman area via a self-administered questionnaire. Descriptive statistics, cross-tabulation, and correlation coefficient calculations were used where appropriate, and probit analysis was applied to estimate mean ± SD age at menarche.
The students' mean age was 15.7 ± 1.5 years. Mean age at menarche was 13.1 ± 1.1 years for those who recalled it and 12.8 ± 1.4 years per the probit analysis. Menstruation duration was 4 to 7 days for 73.6% of the students, and it was more than 7 days for 2.2%. Mid-cycle pain was reported by 30.9% and dysmenorrhea by 37.6% of the students, 8% of whom needed to miss school 1 day per cycle. Body mass index was correlated with age at menarche (P=0.002).
The mean age at menarche was close to that reported in studies from Europe and the USA, but it was younger than the age reported in studies from Africa.
估计初潮年龄分布，并调查约旦少女的月经模式和症状。
通过自填问卷，从安曼地区的 596 名中学生中收集月经状况数据。适当使用描述性统计、交叉表和相关系数计算，并应用概率分析估计初潮的平均年龄 ± SD。
学生的平均年龄为 15.7 ± 1.5 岁。那些记得初潮年龄的学生的平均初潮年龄为 13.1 ± 1.1 岁，而概率分析的平均初潮年龄为 12.8 ± 1.4 岁。73.6%的学生月经持续 4 至 7 天，2.2%的学生月经持续超过 7 天。30.9%的学生报告有经中期疼痛，37.6%的学生有痛经，其中 8%的人每周期需要缺课 1 天。体重指数与初潮年龄相关（P=0.002）。
初潮年龄的平均值接近欧洲和美国研究报告的年龄，但比非洲研究报告的年龄年轻。
