In modern contexts, all definitions of Central Asia include these five republics of the former Soviet Union: Kazakhstan (pop. 16.6 million), Kyrgyzstan (5.5 million), Tajikistan (7.6 million), Turkmenistan (5.1 million), and Uzbekistan (29.5 million), for a total population of 64.7 million as of 2012.

http://en.wikipedia.org/wiki/Central_Asia

Kyrgyzstan: Health Profile, 2012 - http://www.pitt.edu/~super1/lecture/lec46441/index.htm

Tajikistan: Health Profile, 2012 - http://www.pitt.edu/~super1/lecture/lec46451/index.htm

Turkmenistan: Health Status Country Profile, 2012 - http://www.pitt.edu/~super1/lecture/lec46471/index.htm

Uzbekistan: Health Status Country Profile, 2012 - http://www.pitt.edu/~super1/lecture/lec46481/index.htm

2002 Health profiles http://www.pitt.edu/~super1/national/indicators.htm