Table 3.

Results of multivariate logistic analyses showing the association of parental characteristics with fetal chromosomal aberrations

	Chromosomal abnormality OR (95% CI)	P
Paternal age (years, continuous)	1.11 (1.03, 1.18)	0.003**
Serum homocysteine (μmol/L, continuous)	1.28 (1.02, 1.60)	0.037*
Previous miscarriages (n)
≥ 1 vs 0	0.53 (0.26, 1.09)	0.083
Exposure to paint
Yes vs No	6.89 (0.66, 71.81)	0.106
Perceived noises
Yes vs No	0.27 (0.10, 0.76)	0.013*

All variables were introduced into the model and selected with a Backward: LR strategy, remove at P > 0.10

Bold font indicate statistical significance; the 95% CI does not include 1

^*indicates P < 0.05

^**indicates P < 0.01