In the United States, preterm delivery affects approximately one in 10 births and is the cause of at least 75 percent of neonatal deaths, excluding those related to congenital malformations.1. Preterm labor is defined as labor that occurs before completion of the 37th week of gestation.
Santiago, the capital, is the largest city. The city/urban population is 308,000, but the Santiago Metropolitan Region has more than 6 million inhabitants, representing the most populated and most densely populated region in Chile.he official 2012 estimate placed Chile's population at 17.4 million. Chile's population is estimated to have grown in 2013 to 17,643,916, and in 2015 to 17.9 million, which makes it the 61st most populous country on earth.
As of 1 January 2017, the population of Chile was estimated to be 18 238 461 people. This is an increase of 1.07 % (192 550 people) compared to population of 18 045 911 the year before. In 2016 the natural increase was positive, as the number of births exceeded the number of deaths by 151 044.