Table 6. Odds ratios for risk factors for preeclampsia.

Risk factor	Odds ratio	95% CI
Age (years)	1.04	1.01.-1.08
Height (cm)	0.98	0.94–1.02
Weight (kg)	1.00	1.00–1.00
Smoking	0.96	0.33–2.40
Previous preeclampsia	9.21	3.22–28.26
MMP2 C-1306T	0.85	0.09–7.68
MMP9 C-1562T	1.22	0.13–11.91
NOS3 G894T (recessive model, TT vs. GT+GG)	2.87	1.21–6.83
NOS3 T–786C (recessive model, CC vs. TC+TT)	3.06	1.37–6.87

CI, confidence interval; values in bold were statistically significant.