Premature births and infant illnesses has doubled over a 15-year period. The incidence of the condition which is called Chorioamnionitis doubled between 1995 and 2010.

The study was conducted by Kaiser Permanente Southern California and published in the International Journal of Reproductive Medicine recently.

The research was based on more than 471,000 single-child births at Kaiser Permanente facilities across Southern California between 1995 and 2010. The research found the incidence of amniotic fluid infections or chorioamnionitis increased from 2.7% of all births between 1995 and 1996, to a staggering 6% of all births between 2009 and 2010. That was an increase of 126% over 15 years.

There were variations in the spike, depending on the race and ethnicity of women. For instance, although amniotic fluid infections or fetal membrane infection rates increased for all races and ethnicities during the 15-year period, California medical malpractice lawyers found the most dramatic increases were reported among Hispanic and Asian women. In the case of Asian women, the infection rates increased by 151%, while in the case of Hispanic women, the rates increased by 135%.

Among white women, the infection rates rose by approximately 141%. The lowest rate of fetal membrane infections were seen among African-American women, among who the increase in infections was just about 66% during the study period.

The researchers believe the findings of the study can be used by doctors to understand how these infection rates differ based on ethnicity, race, as well as gestational age.