Table A2:

Fraction of trimester opioid exposed on Neonatal Abstinence Syndrome (NAS)

	Narrow NAS			Broad NAS
	Full sample	Sibling sample		Full sample	Sibling sample
MAT-T1	0.177***	0.179***	0.104*	0.288***	0.284***	0.158***
	(0.037)	(0.050)	(0.061)	(0.039)	(0.053)	(0.060)
	110.6%	38.1%	22.1%	84.7%	35.5%	19.8%
MAT-T2	0.014	0.063	0.125	0.019	0.066	0.161*
	(0.059)	(0.077)	(0.096)	(0.062)	(0.082)	(0.096)
	8.8%	13.4%	26.6%	5.6%	8.3%	20.1%
MAT-T3	0.477***	0.408***	0.285***	0.506***	0.436***	0.275***
	(0.042)	(0.055)	(0.069)	(0.043)	(0.056)	(0.068)
	298.1%	86.8%	60.6%	148.8%	54.5%	34.4%
non-MAT-T1	0.075***	0.068***	0.062***	0.113***	0.108***	0.098***
	(0.012)	(0.016)	(0.019)	(0.014)	(0.019)	(0.023)
	46.9%	14.5%	13.2%	33.2%	13.5%	12.3%
non-MAT-T2	0.050***	0.068***	0.055**	0.056***	0.067**	0.042
	(0.016)	(0.022)	(0.025)	(0.020)	(0.027)	(0.030)
	31.3%	14.5%	11.7%	16.5%	8.4%	5.3%
non-MAT-T3	0.118***	0.088***	0.029	0.203***	0.168***	0.111***
	(0.013)	(0.018)	(0.021)	(0.017)	(0.023)	(0.027)
	73.8%	18.7%	6.2%	59.7%	21.0%	13.9%
Illicit-T1	0.206***	0.166***	0.084	0.315***	0.282***	0.143**
	(0.039)	(0.052)	(0.062)	(0.040)	(0.054)	(0.061)
	128.8%	35.3%	17.9%	92.6%	35.3%	17.9%
Illicit-T2	0.033	0.084	0.120	0.037	0.104	0.176*
	(0.062)	(0.081)	(0.099)	(0.063)	(0.083)	(0.098)
	20.6%	17.9%	25.5%	10.9%	13.0%	22.0%
Illicit-T3	0.394***	0.392***	0.249***	0.374***	0.327***	0.193**
	(0.053)	(0.070)	(0.084)	(0.051)	(0.068)	(0.080)
	246.3%	83.4%	53.0%	110.0%	40.9%	24.1%
Year FE	YES	YES	YES	YES	YES	YES
MFE	NO	NO	YES	NO	NO	YES
N	255,227	44,838	44,838	255,227	44,838	44,838