Table 6.
Sensitivity analysis of multiplication models and additive models between maternal colds and depressive symptoms on CHD.
| Interactions | Model 1d | Mode 2e | ||
|---|---|---|---|---|
| Wealth index | ||||
| Poor | Multiplication model | Depression * colds | 2.07(1.28–3.35) | 2.01(1.06–3.83) |
| Additive model | RERIa | 0.42(−1.36–2.19) | 0.62(−1.47–2.70) | |
| APb | 0.13(−0.39–0.65) | 0.21(−0.43–0.85) | ||
| Sc | 1.23(0.50–3.03) | 1.46(0.37–5.77) | ||
| Moderate | Multiplication model | Depression * colds | 1.37(1.01–1.88) | 1.96(1.30–2.96) |
| Additive model | RERIa | −0.51(−1.48–0.46) | 0.57(−0.60–1.75) | |
| APb | −0.23(−0.7–0.24) | 0.22(−0.18–0.62) | ||
| Sc | 0.7(0.36–1.33) | 1.54(0.59–4) | ||
| Rich | Multiplication model | Depression * colds | 1.68(1.01–2.82) | 1.99(1.10–3.6) |
| Additive model | RERIa | −0.55(−2.75–1.66) | 0.14(−2.34–2.62) | |
| APb | −0.18(−0.93–0.57) | 0.04(−0.68–0.76) | ||
| Sc | 0.79(0.32–1.94) | 1.06(0.36–3.08) | ||
| Taking folic acid | ||||
| No | Multiplication model | Depression * colds | 2.58(1.48–4.50) | 2.43(1.10–5.39) |
| Additive model | RERIa | 1.39(−0.71–3.49) | 0.99(−2.61–4.58) | |
| APb | 0.38(−0.08–0.84) | 0.23(−0.51–0.98) | ||
| Sc | 2.09(0.57–7.63) | 1.44(0.37–5.66) | ||
| Yes | Multiplication model | Depression * colds | 1.34(1.03–1.74) | 1.77(1.28–2.45) |
| Additive model | RERIa | −0.88(−1.79–0.03) | 0.17(−0.77–1.11) | |
| APb | −0.39(−0.82–0.04) | 0.07(−0.30–0.45) | ||
| Sc | 0.59(0.36–0.97) | 1.14(0.56–2.31) | ||
| Baby gender | ||||
| Male | Multiplication model | Depression * colds | 1.72(1.26–2.34) | 2.13(1.43–3.17) |
| Additive model | RERIa | −0.59(−1.93–0.74) | 0.38(−1.16–1.93) | |
| APb | −0.18(−0.61–0.24) | 0.11(−0.31–0.53) | ||
| Sc | 0.79(0.48–1.31) | 1.18(0.60–2.34) | ||
| Female | Multiplication model | Depression * colds | 1.36(0.96–1.93) | 1.69(1.08–2.64) |
| Additive model | RERIa | −0.31(−1.26–0.63) | 0.27(−0.87–1.41) | |
| APb | −0.17(−0.68–0.35) | 0.12(−0.38–0.63) | ||
| Sc | 0.74(0.31–1.75) | 1.30(0.39–4.30) | ||
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, maternal smoking, drinking, taking medicine, pregnancy reaction, abnormal prenatal examination, negative life events, chronic disease, natural abortion history, family history of CHD and economic status/taking folic acid/baby gender.