Table 4.
Multiplication models and additive models of maternal colds and depressive symptoms on the occurrence of CHD.
| Interactions | Model 1d | Model 2e | |
|---|---|---|---|
| Multiplication model | Depression * colds | 2.08(1.58–2.74) | 2.04(1.47–2.83) |
| Additive model | RERIa | 0.59(−0.36–1.54) | 0.55(−0.54–1.64) |
| APb | 0.19(−0.09–0.47) | 0.19(−0.15–0.53) | |
| Sc | 1.40(0.79–2.46) | 1.40(0.70–2.81) | |
| Multiplication model | Depression *colds with fever | 1.55(0.67–3.55) | 1.31(0.49–3.52) |
| Additive model | RERI | −0.72(−2.9–1.46) | −0.91(−3.18–1.35) |
| AP | −0.34(−1.61–0.92) | −0.52(−2.23–1.18) | |
| S | 0.61(0.11–3.39) | 0.45(0.04–5.18) | |
| Multiplication model | Depression *colds without fever | 2.19(1.65–2.92) | 2.21(1.57–3.09) |
| Additive model | RERI | 0.78(−0.15–1.71) | 0.83(−0.25–1.9) |
| AP | 0.26(−0.01–0.53) | 0.28(−0.03–0.59) | |
| S | 1.64(0.87–3.09) | 1.75(0.8–3.85) | |
aThe relative excess risk due to interaction.
bThe attributable proportion.
cThe synergy index.
dNo other factors were adjusted.
eAdjusted for Model 1 and maternal age, education, economic status, maternal smoking, drinking, taking folic acid, taking medicine, pregnancy reaction, abnormal prenatal examination, negative life events, chronic disease, natural abortion history, family history of CHD, baby gender.