Table 3.

Effect of prenatal exposure to fine particulate matter and maternal fish consumption on the birth weight of babies estimated from the multivariable linear regression model B (with interaction between particulate matter and fish consumption)

Predictors	Coefficient	p-level	95% confidence interval
Maternal age	−1.97	0.729	−13.12678	9.190845
Maternal educationa	9.26	0.172	−4.05	22.57
Maternal height	12.39	0.000	5.75	19.03
Maternal prepregnancy weight	11.27	0.000	6.96	15.58
Gestational age	138.67	0.000	108.98	168.37
Parityb	115.38	0.000	51.24	179.51
Female child	−176.58	0.000	−244.47	−108.68
Fish consumption levelc	64.32	0.282	−53.03	181.67
Prenatal exposure to fine particulate matter (in tertiles)
PM2.5 <27.0 μg/m3	1.00
PM2.5 27.0–46.29 μg/m3	15.18	0.774	−88.88	119.24
PM2.5 >46.29 μg/m3	−51.15	0.381	−165.75	63.45
Interaction term (PM2.5 medium level × low fish consumption)	−32.68	0.708	−203.93	138.56
Interaction term (PM2.5 higher level × low fish consumption)	−107.35	0.215	−277.09	62.39
Intercept	−4,789.73	0.000	−6,410.45	−3,169.01

Additionally included in the regression model: season of birth. n = 481.

^aYears of schooling.

^b1 = First, 2 = second, 3 = third or more.

^c1 = Low level (<91 g/week), 0 = >90 g/week.