Table 1.

Participant demographics, drinking history, and neuropsychological performance by Group and Gender. All neuropsychological test scores are scaled scores. Quantity Frequency Index scores are roughly equivalent to the average number of drinks consumed per day (one drink is roughly equivalent to one ounce of ethanol) by accounting for the number of ounces of beverage consumed and the number of ounces of ethanol included in each type of alcoholic beverage (wine, beer and liquor) during the last six months for nonalcoholics, and approximately for the last six months of drinking for alcoholics.

	All Alcoholics	All Nonalcoholics	Alcoholic Women	Alcoholic Men	Nonalcoholic Women	Nonalcoholic Men
	n = 77	n = 59	n = 37	n = 40	n = 29	n = 30
Education (years)
Mean	14.47	15.02	14.80	14.18	14.90	15.13
SD	2.09	2.45	1.97	2.18	2.51	2.42
Range	11–20	10–20	12–19	11–20	12–20	10–20
Age (years)
Mean	51.81	52.74	53.28	50.44	55.39	50.18
SD	11.16	13.40	11.85	10.45	13.60	12.92
Range	28.08–76.75	26.58–81.58	31.00–75.58	28.08–76.75	30.50–78.33	26.58–81.58
WAIS-IV Full Scale IQ†,a,k
Mean	103.04	108.17	102.24	103.78	106.55	109.73
SD	15.31	14.08	13.79	16.73	14.51	13.71
Range	75–142	79–141	75–132	75–142	79–141	89–141
WMS-IV Delayed Memory Index Score‡a,e,i
Mean	105.40	112.62	107.17	103.76	114.21	111.03
SD	16.93	14.30	19.42	14.33	12.55	15.93
Range	62–135	78–146	62–135	76–133	86–146	78–137
Hamilton Rating Scale for Depressionb,d,f,l
Mean	3.17	1.58	3.70	2.68	2.03	1.13
SD	3.42	2.17	3.31	3.49	1.97	2.29
Range	0–14	0–8	0–10	0–14	0–7	0–8
Duration of Heavy Drinking (years)b,d,f,g,j,l
Mean	15.51	0.00	13.12	17.73	0.00	0.00
SD	7.91	0.00	5.66	9.06	0.00	0.00
Range	5–37	0.00	5–25	5–37	0.00	0.00
Quantity Frequency Index (drinks per day)b,d,f,g,j,l
Mean	11.52	0.19	8.89	13.96	0.23	0.15
SD	8.23	0.29	6.91	8.67	0.36	0.18
Range	2.54–44.16	0.00–1.42	2.54–34.82	3.03–44.16	0.00–1.42	0.00–0.73
Length of Abstinence (years)^b,d,h,l
Mean	6.64	2.67	9.96	3.57	2.96	2.39
SD	9.43	8.14	11.66	5.28	8.03	8.39
Range	0.10–36.14	0.002–40.20	0.10–36.14	0.10–27.43	0.005–31.87	0.003–40.19
Number of Individuals Having Engaged in Treatment	69	N/A	32	37	N/A	N/A
Number of Individuals Meeting DSM-IV Criteria for Current Nicotine Dependence+	7	1	4	3	0	1

^†For one alcoholic woman, IQ was estimated from a test of vocabulary (premorbid intelligence).

^‡Four alcoholics (2 women) and one nonalcoholic man had missing Delayed Memory Index Scores.

^{^}Four nonalcoholics (2 women) had missing LOA measures because they never drank.

⁺Three alcoholics (2 women) had missing data for DSM-IV Criteria for Nicotine Dependence.

Significant Differences (p ≤ .05):

^aAlcoholics < Nonalcoholics;

^bAlcoholics > Nonalcoholics;

^cAlcoholic Women < Nonalcoholic Women;

^dAlcoholic Women > Nonalcoholic Women;

^eAlcoholic Men < Nonalcoholic Men;

^fAlcoholic Men > Nonalcoholic Men;

^gAlcoholic Women <Alcoholic Men;

^hAlcoholic Women > Alcoholic Men;

ⁱAlcoholic Men < Nonalcoholic Women;

^jAlcoholic Men > Nonalcoholic Women;

^kAlcoholic Women < Nonalcoholic Men;

^lAlcoholic Women > Nonalcoholic Men.