Table 2.

Neurocognitive Standard Scores (mean ± SD) by Group Across Time and Percent Change

Cognitive Test	Smoking Status	TP1 (1 week)	TP2 (5 weeks)	% Change	p-value
Digit Span	Smoker	10.49 ± 3.38	10.78 ± 3.18	+ 1.9	.132
(Scaled Score)	NonSmoker	9.89 ± 3.34	10.64 ± 3.43	+ 4.8	.013*
Digit Symbol	Smoker	7.80 ± 3.09	8.66 ± 2.86	+ 6.3	.008*
(Scaled Score)	NonSmoker	9.06 ± 3.06	10.38 ± 3.11	+ 8.6	.000*
Symbol Search	Smoker	9.75 ± 2.56&	11.00 ± 2.48	+ 7.8	.005*
(Scaled Score)	NonSmoker	10.54 ± 2.74&	11.41 ± 2.44	+ 5.3	.008*
BVMT Learning	Smoker	35.14 ± 14.46	45.74 ± 14.46	+23.2	.000*
(t-score)	NonSmoker	38.99 ± 14.17	48.57 ± 14.29	+19.7	.000*
BVMT Delayed Recall	Smoker	38.57 ± 17.33	44.84 ± 16.73	+14.0	.147
(t-score)	NonSmoker	43.19 ± 16.94	47.47 ± 17.14	+ 9.0	.281
CVLT Learning	Smoker	53.64 ± 11.31&	52.73 ± 11.09	− 1.7	.264
(t-score)	NonSmoker	57.95 ± 11.93&	58.12 ± 11.40	+ 0.3	.813
CVLT Short Free Recall (z-score)	Smoker	0.33 ± 1.16&	0.10 ± 1.11	− 4.5	.315
	NonSmoker	0.59 ± 1.20&	0.38 ± 1.16	− 4.0	.388
CVLT Long Free Recall (z-score)	Smoker	0.48 ± 1.14&	0.04 ± 1.10	− 8.7	.014*
	NonSmoker	0.68 ± 1.20&	0.64 ± 1.14	− 0.7	.665

^*p < .015;

^&subset of 21 nsALC and 17 sALC at TP1.