ﺑﺎﺯﮔﺸﺖ ﺑﻪ ﺻﻔﺤﻪ ﻗﺒﻠﯽ
خرید پکیج
تعداد آیتم قابل مشاهده باقیمانده : 3 مورد
نسخه الکترونیک
medimedia.ir

Variation in menstrual cycle by age

Variation in menstrual cycle by age
Age (years) Difference between longest and shortest cycles (days)*
18 to 25 ≤9
26 to 41 ≤7
42 to 45 ≤9
Data for postmenarchal girls under the age of 18 and premenopausal women over the age of 45 are difficult to discern as ovulatory disorders have a relatively high prevalence. It is suggested that the ≤9 day threshold for normal be used for this population.
* These data are calculated excluding long and short outliers.
Data from:
  1. Harlow SD, Lin X, Ho MJ. Analysis of menstrual diary data across the reproductive life span applicability of the bipartite model approach and the importance of within-woman variance. J Clin Epidemiol 2000; 53:722.
Reproduced with permission from Malcolm G Munro, MD, FRCSC, FACOG.
Graphic 107977 Version 3.0

آیا می خواهید مدیلیب را به صفحه اصلی خود اضافه کنید؟