Maternal exposure to life events during pregnancy and congenital heart disease in offspring: a case-control study in a Chinese population

Table 4 The modified effect of positive events based on integrated grouping

Positive	Negative	Case group	Control group	OR (95%CI) ^a
Events	Events	(n = 699)	(n = 1581)	Unadjusted	Adjusted
0	0	346 (49.50)	649 (41.05)	1.00	1.00
0	1	193 (27.61)	240 (15.18)	1.51 (1.20, 1.90) ^†	1.38 (1.05, 1.82) ^*
1	1	104 (14.88)	312 (19.73)	0.63 (0.48, 0.81) ^†	0.67 (0.49, 0.91) ^*
1	0	56 (8.01)	380 (24.04)	0.28 (0.20, 0.38) ^†	0.29 (0.21, 0.42) ^†

^aLogistic model was used for estimating risk of life events with or without adjusting for covariates. Adjusted covariates included maternal age, residence, maternal education, paternal education, family history of CHD, history of parturition, history of abortion, infection during periconception, and abnormal prenatal examination
^* p < 0.05; ^** p < 0.01; ^† p < 0.001

ISSN: 1471-2393