Table 2. Pearson Chi-Square Test for Prematurity and Risk ratio
Pearson Chi-Square	Value	df	Asymptotic significance (2-sided)
	5.47	1		0.019
Odds Ratio	Value	95%Confidence Interval
		Lower	Upper
	1.707	1.086	2.686
0 cells(0.0%) have expected count less than 5