must be considered a primarily biological phenomenon, related to the male phenotype but not significantly associated with the expression of X chromosome mutations in hemizygous males (Stevenson & Bobrow, 1967), in postnatal life both biological and social factors influence the tertiary sex ratio. By...
A recent study from Canada has reported a significant increase, with time, in female-to-male ratio in multiple sclerosis over the last 100 years.Objective: The aim of this study was to analyse any change in sex ratio in multiple sclerosis in the Swedish population.Methods: Data from the ...
The variation of abundance, body size, and condition factor over time, sex ratio, and length-weight relations were analyzed. Results. The estimated abundance was 1.97 specimens per 1 m2. The TL means increased along the year, and males were larger than females. Strong differences in ...
and geographical patterns in the sex ratio at birth and in the population aged under 20 in China and to determine the roles played by sex selective abortion and the one child policy.Analysis of household based cross sectional population survey done in November 2005.All of China's 2861 counties...
Our study provided the first estimation of China's stroke prevalence on the basis of data from a large-scale survey. The estimated stroke prevalence and its association with age and sex are consistent with published findings from other developed countries. However, China's rural population has a...
Interpretation Prenatal sex determination followed by selective abortion of female fetuses is the most plausible explanation for the low sex ratio at birth in India. Women most clearly at risk are those who already have one or two female children. Based on conservative assumptions, the practice ...
The sex ratio at birth (SRB; ratio of male to female live births) imbalance in parts of the world over the past few decades is a direct consequence of sex-selective abortion, driven by the coexistence of son preference, readily available technology of prenatal sex determination, and fertility...
Age-specific sex ratio of multiple sclerosis in the National Swedish MS Register (SMSreg) B Inger,S Leszek,L Anne-Marie 被引量: 0发表: 2018年来源期刊 MULTIPLE SCLEROSIS 研究点推荐 multiple sclerosis 0关于我们 百度学术集成海量学术资源,融合人工智能、深度学习、大数据分析等技术,为科研工作者提供...
Burden and Correlates of HIV among Men Who Have Sex with Men in West Bengal, India: Analysis of Sentinel Surveillance Data Little is known about the socio-behavioral risk factors for HIV acquisition among hard-to-reach men who have sex with men (MSM) population in India, partic... T Mahap...
Introduction: Skewed levels of the sex ratio at birth (SRB) due to sex-selective abortions have been observed in several countries since the 1970s. They will lead to long-term sex imbalances in more than a third of the world's population with yet unknown social and economic impacts on affe...