Selzer R, Caust J, Hibbert M, Bowes G, Patton G
Centre for Adolescent Health, Royal Children's Hospital, Parkville, Victoria, Australia.
J Adolesc Health. 1996 Jul;19(1):56-61. doi: 10.1016/1054-139X(95)00229-L.
This study examined the relative importance of low weight, in contrast with other symptoms of eating disorder, as a determinant of amenorrhea.
A cross-sectional survey was conducted of students at Year 10 (mean age 15.0 years) attending 43 schools in the state of Victoria. Amenorrhea and symptoms of eating disorder were assessed using the Branched Eating Disorders Test, administered through the medium of a notebook computer.
The survey response rate was 84% (n = 886). A total of 23% (n = 205) reported either fasting or purging in the previous month. Secondary amenorrhea of at least 3 months duration was reported by 4.1% (n = 35). No statistically significant association was found between amenorrhea and body mass index. In contrast, 40% of amenorrheic subjects reported fasting or purging (P = .03), an association most evident in the heaviest subjects.
These finding suggests that secondary amenorrhea may develop in normal and above-weight teenagers who engage in eating disordered weight control practices.
本研究探讨了与饮食失调的其他症状相比，体重过低作为闭经决定因素的相对重要性。
对维多利亚州43所学校的10年级学生（平均年龄15.0岁）进行了横断面调查。使用通过笔记本电脑进行的分支饮食失调测试评估闭经和饮食失调症状。
调查回复率为84%（n = 886）。共有23%（n = 205）报告在前一个月有禁食或催吐行为。4.1%（n = 35）报告有至少持续3个月的继发性闭经。未发现闭经与体重指数之间存在统计学上的显著关联。相比之下，40%的闭经受试者报告有禁食或催吐行为（P = .03），这种关联在体重最重的受试者中最为明显。
这些发现表明，从事饮食失调性体重控制行为的正常体重及超重青少年可能会出现继发性闭经。
