Variable

Number of Subjects

Age, Mean ± SD

ASA, Completed (% ASA)

All Subjects

1719

33 ± 13

198, 1521 (11%)

Male

1134

33 ± 9

125, 1134 (11%)

Female

585

37 ±12

56, 529 (10%)

Alcohol

1075

41 ± 12

97, 978, (9%)

Male

654

39 ± 7

58, 596 (9%)

Female

421

43 ± 8

28, 393 (7%)

Heroin

644

24 ± 6

101, 543 (16%)

Male

485

25 ± 5

72, 413 (15%)

Female

159

23 ± 4

29, 130 (18%)