No association between age at menarche and substance use among Canadian adolescent girls: Results of a cross-sectional study

Author's response to reviews Title: Age at menarche and current substance use among Canadian adolescent girls: Results of a cross-sectional study Authors:

Age at menarche and current substance use among Canadian adolescent girls: results of a cross-sectional study

BACKGROUND Substance use is among the key public health threats that find its genesis during adolescence. Timing of puberty has been lately researched as a potential predictor of subsequent substance abuse. The present study, therefore, aims to assess the effect of age at menarche on current practices of smoking, alcohol drinking and drug use among 14-15 year old Canadian girls. METHODS The a...

Age at Menarche and its Relationship to Anthropometric Indices in Adolescent Girls

Background Menarche is a substantial and important period in the health of adolescent girls’, and has a significant impact on their health in the upcoming years. Accordingly, in this study, we aimed to not only determine the average age of menarche among high school girls in Qom city, but also to examine the effect of some factors on onset age of menarche. Materials and Methods In this cross-se...

Correlation of body mass index levels with menarche in adolescent girls in Shaanxi, China: a cross sectional study

BACKGROUND Menarche is a milestone for adolescent girls. The timing of menarche is influenced by genetics, social status and nutritional status (e.g., height, weight and body mass index [BMI]) and impacts future health (e.g., obesity and breast cancer). There have been many studies on trends in age at menarche among adolescent girls in China, but few have investigated associations between growt...

Age at Menarche and its Related Factors among School Girls, in Zanjan, Iran

BackgroundThere are differences in the age at menarche in different countries and it seems that in recent decades gradually the age of puberty is declining. The aim of the present study was to determine the age at menarche and its related factors in school girls in Zanjan city, Iran.Materials and MethodsThis cross-sectional study was conducted on 1,500 healthy school girls between 6-17 years ol...