. Author manuscript; available in PMC: 2010 Jul 1.

Published in final edited form as: Neurotoxicol Teratol. 2009 Feb 27;31(4):216–224. doi: 10.1016/j.ntt.2009.02.002

Table 6.

Correlation Matrix Between Cigarette Use and ABER Latencies¹(n=172)

	Overall Average Cig/Day	3 Months Prior Cig/Day	1^st Trimester Cig/Day	2^nd Trimester Cig/Day	3^rd Trimester Cig/Day	Log of Cotinine Maternal Blood
Wave 1	−.138^T	−.073	−.114	−.141^T	−.192^*	−.257^**
Wave 3	−.163^*	−.162^*	−.137^T	−.133^T	−.109	−.075
Wave 5	−.233^**	−.195^**	−.219^**	−.194^**	−.183^*	−.052
V-I Latency	−.197^*	−.206^**	−.201^**	−.131^T	−.098	.012

^Tp <.10,

p <.05,

^**

<.01,

^***

<.001

After adjusting for child’s age