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Table 1 Sample size for the unrelated sample and the related small nuclear families.

From: Recessive genetic mode of an ADH4 variant in substance dependence in African-Americans: A model of utility of the HWD test

    

Sample sizes

  

%Male

Age (years)

EA

AA

Hispanic

Others

Sample 1

Healthy controls

39.9

28.2 ± 9.1

310

48

  
 

Cases

73.4

39.4 ± 9.2

391

158

  
 

AD

76.1

40.3 ± 9.2

326

101

  
 

DD

68.2

37.1 ± 8.1

204

145

  

Sample 2

Healthy controls

28.0

33.5 ± 12.6

 

125

  
 

Cases

64.9

40.0 ± 9.3

 

271

  
 

AD

65.1

40.0 ± 9.3

 

269

  
 

DD

64.8

42.0 ± 8.3

 

71

  

Sample 3

SNF size

  

92

12

6

2

 

Parents

49.8

65.9 ± 8.6

183

24

11

3

 

%Unaffected

45.5

66.8 ± 8.6

79.8

37.5

63.6

100.0

 

Offspring

54.8

39.2 ± 11.1

96

13

5

1

 

AD

58.9

37.3 ± 8.2

77

9

3

1

 

DD

55.2

38.0 ± 7.3

77

13

5

1

  1. EA, European-American; AA, African-American; AD, alcohol dependence; DD, drug dependence; SNF, small nuclear families. Samples 1 and 2 are unrelated case-control samples; Sample 3 is related SNF sample.