. Author manuscript; available in PMC: 2010 Nov 1.

Published in final edited form as: J Periodontol. 2009 Nov;80(11):1731–1741. doi: 10.1902/jop.2009.090236

Table 5.

P values for Association between Serum Markers and Birthweight

	Baseline	29–32 weeks	Change from Baseline
CRP	0.76^*	0.19	0.14
PGE₂	0.62	0.44	0.91
MMP-9	0.72	0.68	0.46
Fibrinogen	0.30	0.08	0.22
Endotoxin	0.87	0.17	0.45

P value from multiple linear regression with birthweight as the dependent variable and the serum marker (log10), age, sex and BMI as independent variables. Treatment group also included as an independent variable in the analysis of the 29–32 week data (columns 2 and 3). P values in column 1 correspond to data shown in Figure 2.