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The sex ratio at birth (SRB) has risen over the past few decades from a natural 103 males for every 100 female infants to a peak of 121 boys per 100 girls in 2005 (recent numbers put the current ratio at 118 boys to 100 girls).
Change in the sex ratio at birth (because of sex selective induced abortions) is becoming more and more favourable to males, and
Anand Krishnan has examined the issue sex ratio at birth and survival of children up to age five in the study.
Addressing the meeting, Shri Ghulam Nabi Azad, Union Minister of Health and Family Welfare said that the issue of low Sex Ratio at Birth (SRB) in our country have been scaled up at national, state, district and sub-district levels.
Statistics of the Emirate of Abu Dhabi show that the sex ratio at birth fluctuated between 2001 and 2010 for both citizens and non-citizens.
Under normal circumstances, the sex ratio at birth usually ranges from 102-106 live male births per 100 live female births.
Unnautural Selection: Choosing Boys Over Girls, and the Consequences of a World Full of Men provided a vivid examination of the natural sex ratio at birth and how that is changing.
The sex ratio at birth also varies between different populations.