Table 3.

Neurocognitive domain and neuropsychological tests/subtests scores, stratified by history of smoking

	HIV-seropositive
	No	Yes	p-valuea
	History of smoking
I. NPZb	−0.35 (0.60)	0.05 (0.65)	0.085
II. Neuropsychological     tests/subtests
1. Frontal Executive	−1.16 (0.95)	−0.20 (0.93)	0.007
a. Stroop Color       Word Test	−1.845 (1.096)	−0.705 (1.077)	0.005
b. Trail Making B	−0.466 (1.431)	0.295 (1.122)	0.089
2. Psychomotor       Speed	−0.32 (0.62)	0.08 (0.74)	0.122
a. Symbol Digit       Modality Test	−1.019 (0.679)	−0.093 (0.901)	0.004
b. Visual Reaction       Time non       dominant hand	−0.090 (1.207)	0.124 (1.051)	0.511
c. Auditory       Reaction Time       non dominant       hand	0.162 (0.459)	0.205 (0.682)	0.781
3. Verbal Memory       (RAVLTc)	−0.08 (0.77)	0.33 (0.61)	0.280
a. Trial 5	−0.497 (0.920)	−0.004 (0.714)	0.687
b. Memory Recall	0.263 (1.006)	0.420 (0.894)	0.608
c. Delayed       Recognition	0.466 (0.737)	0.587 (0.584)	0.525
4. Motor Speed	−0.27 (0.83)	−0.10 (1.12)	0.637
a. Trail Making A	−0.383 (1.746)	0.177 (1.438)	0.400
b. Grooved       Pegboard       dominant hand	−0.077 (0.673)	−0.164 (0.882)	0.988
c. Grooved       Pegboard non       dominant hand	−0.352 (1.089)	−0.303 (1.613)	0.637
	Current smoking
	HIV-seropositive
	No	Yes
I. NPZ	−0.15 (0.57)	0.01 (0.76)	0.454
II. Neuropsychological     tests/subtests
1. Frontal Executive	−0.72 (1.03)	−0.24 (0.99)	0.173
2. Psychomotor     Speed	−0.06 (0.62)	−0.04 (0.87)	0.912
3. Verbal Memory	0.23 (0.64)	0.28 (0.72)	0.842
4. Motor Speed	−0.25 (0.85)	−0.02 (1.25)	0.521

^aComparisons made across history of smoking among HIV-1 seropositive using Student’s t-test. Significant p value <0.05.

^bNPZ= neuropsychological tests z-score.

^cRey Auditory Verbal Learning Test.